Podcasts about oiii

Play Episode Listen Later Nov 28, 2022 0:51

MOSEL Survey: Extremely weak outflows in EoR analogues at z=3-4 by Anshu Gupta et al. on Monday 28 November This paper presents deep K-band spectroscopic observations of galaxies at z=3-4 with composite photometric rest-frame Hb+[OIII] equivalent widths EW_0>600A, comparable to the EW of galaxies observed during the epoch of reionisation (EoR, z>6). The typical spectroscopic [OIII] EW_0 and stellar mass of our targets is ~ 700A and log(M_star/M_sun)=8.98. By stacking the [OIII] emission profiles, we find evidence of a weak broad component with F_broad/F_narrow ~ 0.2 and velocity width sigma_{broad} ~ 170 km/s. The strength and velocity width of the broad component does not change significantly with stellar mass and [OIII] EW_0 of the stacked sample. Assuming similar broad component profiles for [OIII] and Halpha emission, we estimate a mass loading factor ~0.2, similar to low stellar mass galaxies at z>1 even if the star formation rates of our sample is 10 times higher. We hypothesize that either the multi-phase nature of supernovae driven outflows or the suppression of winds in the extreme star-forming regime is responsible for the weak signature of outflows in the EoR analogues. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2211.13763v1

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MOSEL Survey: Extremely weak outflows in EoR analogues at z=3-4

Play Episode Listen Later Nov 27, 2022 0:44

MOSEL Survey: Extremely weak outflows in EoR analogues at z=3-4 by Anshu Gupta et al. on Sunday 27 November This paper presents deep K-band spectroscopic observations of galaxies at z=3-4 with composite photometric rest-frame Hb+[OIII] equivalent widths EW_0>600A, comparable to the EW of galaxies observed during the epoch of reionisation (EoR, z>6). The typical spectroscopic [OIII] EW_0 and stellar mass of our targets is ~ 700A and log(M_star/M_sun)=8.98. By stacking the [OIII] emission profiles, we find evidence of a weak broad component with F_broad/F_narrow ~ 0.2 and velocity width sigma_{broad} ~ 170 km/s. The strength and velocity width of the broad component does not change significantly with stellar mass and [OIII] EW_0 of the stacked sample. Assuming similar broad component profiles for [OIII] and Halpha emission, we estimate a mass loading factor ~0.2, similar to low stellar mass galaxies at z>1 even if the star formation rates of our sample is 10 times higher. We hypothesize that either the multi-phase nature of supernovae driven outflows or the suppression of winds in the extreme star-forming regime is responsible for the weak signature of outflows in the EoR analogues. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2211.13763v1

weak survey ew mosel arxiv outflows eor analogues oiii anshu gupta

MASCOT: Molecular gas depletion times and metallicity gradients -- evidence for feedback in quenching active galaxies

Play Episode Listen Later Nov 24, 2022 1:10

MASCOT: Molecular gas depletion times and metallicity gradients -- evidence for feedback in quenching active galaxies by C. Bertemes et al. on Thursday 24 November We present results from the first public data release of the MaNGA-ARO Survey of CO Targets (MASCOT), focussing our study on galaxies whose star-formation rates and stellar masses place them below the ridge of the star-forming Main Sequence. In optically-selected type 2 AGN/LINERs/Composites, we find an empirical relation between gas-phase metallicity gradients $nabla Z$ and global molecular gas depletion times $t_mathrm{dep} = M_{H_2}$/SFR with "more quenched" systems showing flatter/positive gradients. Our results are based on the O3N2 metallicity diagnostic (applied to star-forming regions within a given galaxy) which was recently suggested to also be robust against emission by diffuse ionised gas (DIG) and low-ionisation nuclear emission regions (LINERs). We conduct a systematic investigation into possible drivers of the observed $nabla Z$ - $t_mathrm{dep}$ relation (ouflows, gas accretion, in-situ star formation, mergers, and morphology). We find a strong relation between $nabla Z$ or $t_mathrm{dep}$ and centralised outflow strength traced by the [OIII] velocity broadening. We also find signatures of suppressed star-formation in the outskirts in AGN-like galaxies with long depletion times and an enhancement of metals in the outer regions. We find no evidence of inflows impacting the metallicity gradients, and none of our results are found to be significantly affected by merger activity or morphology. We thus conclude that the observed $nabla Z$ - $t_mathrm{dep}$ relation may stem from a combination of metal redistribution via weak feedback, and a connection to in-situ star formation via a resolved mass-metallicity-SFR relation. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2211.12518v1

active mascot molecular agn galaxies mh sfr quenching depletion liners arxiv gradients oiii

MASCOT: Molecular gas depletion times and metallicity gradients -- evidence for feedback in quenching active galaxies

Play Episode Listen Later Nov 23, 2022 1:04

MASCOT: Molecular gas depletion times and metallicity gradients -- evidence for feedback in quenching active galaxies by C. Bertemes et al. on Wednesday 23 November We present results from the first public data release of the MaNGA-ARO Survey of CO Targets (MASCOT), focussing our study on galaxies whose star-formation rates and stellar masses place them below the ridge of the star-forming Main Sequence. In optically-selected type 2 AGN/LINERs/Composites, we find an empirical relation between gas-phase metallicity gradients $nabla Z$ and global molecular gas depletion times $t_mathrm{dep} = M_{H_2}$/SFR with "more quenched" systems showing flatter/positive gradients. Our results are based on the O3N2 metallicity diagnostic (applied to star-forming regions within a given galaxy) which was recently suggested to also be robust against emission by diffuse ionised gas (DIG) and low-ionisation nuclear emission regions (LINERs). We conduct a systematic investigation into possible drivers of the observed $nabla Z$ - $t_mathrm{dep}$ relation (ouflows, gas accretion, in-situ star formation, mergers, and morphology). We find a strong relation between $nabla Z$ or $t_mathrm{dep}$ and centralised outflow strength traced by the [OIII] velocity broadening. We also find signatures of suppressed star-formation in the outskirts in AGN-like galaxies with long depletion times and an enhancement of metals in the outer regions. We find no evidence of inflows impacting the metallicity gradients, and none of our results are found to be significantly affected by merger activity or morphology. We thus conclude that the observed $nabla Z$ - $t_mathrm{dep}$ relation may stem from a combination of metal redistribution via weak feedback, and a connection to in-situ star formation via a resolved mass-metallicity-SFR relation. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2211.12518v1

active mascot molecular agn galaxies mh sfr quenching depletion liners arxiv gradients oiii

O3 Mining (OIII) - Smart Investors Know That Fundamental Value Matters

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Play Episode Listen Later Nov 5, 2022 12:51

O3 Mining Inc. is a gold exploration and development company focused on its assets located in Québec, Canada. The company's Marban Engineering Gold project is located approximately 15 km west of the town of Val-d'Or in the Abitibi-Temiscamingue region of Quebec, Canada. The project is a 1,023-hectare land package, consisting of approximately 30 mining claims and three mining concessions.

Polar Dust Emission in Quasar IR SEDs and Its Correlation with Narrow Line Regions

Play Episode Listen Later Oct 17, 2022 1:04

Polar Dust Emission in Quasar IR SEDs and Its Correlation with Narrow Line Regions by Jianwei Lyu et al. on Monday 17 October Polar dust has been found to play an important role in the mid-infrared emission of nearby Seyfert nuclei. If and how often polar dust exists among the quasar population is unknown due to the lack of spatially-resolved observations. In this Letter, we report correlations between the prominence of AGN forbidden line emission (commonly associated with the narrow line region) and the dust mid-IR energy output among the archetypal Palomar-Green quasar sample and other bright type-1 AGNs drawn from the SDSS, Spitzer and WISE archives. The AGN mid-IR color differences traced by WISE W2 ($sim4.6 mu m$)$-$W3 ($sim12 mu m$) and W2 ($sim4.6 mu m$)$-$W4 ($sim22 mu m$), and near-IR to mid-IR SEDs constrained with 2MASS, WISE and Spitzer data have clear trends with the relative strength of the forbidden line regions traced by the optical OIII and mid-IR OIV emission lines. These observations indicate that, where the lines are strong, a large fraction of the AGN emission at $lambdagtrsim5 mu$m comes from dust in the forbidden line regions. We find that the widely quoted universal AGN template is a result of averaging quasar SEDs with different levels of polar dust emission above the torus output and that the typical intrinsic IR SED of compact torus dust emission alone falls with increasing wavelength past 5 $mu$m (in $nu F_nu$). In addition, the association of polar dust with the forbidden lines suggests an alternative to the receding torus hypothesis for the decrease in infrared output with increasing AGN luminosity. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2210.08037v1

letter wise dust ir narrow polar emission regions correlation agn w2 spitzer quasar arxiv w3 w4 seyfert sdss seds agns oiii

ALMA Observation of a z gtrsim10 Galaxy Candidate Discovered with JWST

Play Episode Listen Later Oct 17, 2022 0:23

ALMA Observation of a z gtrsim10 Galaxy Candidate Discovered with JWST by Ilsang Yoon et al. on Monday 17 October We report ALMA observation of a $zgtrsim10$ galaxy candidate (GHZ1) discovered from the GLASS-JWST Early Release Science Program. Our ALMA program aims to detect the [OIII] emission line at the rest-frame 3393.0062 GHz ($88.36mu$m) and far-IR continuum emission with the spectral window setup seamlessly covering 26.125 GHz frequency range ($10.10

galaxy candidate ir discovered assuming observation jwst jy ghz arxiv oiii

VOCÊ É FELIZ COM AQUILO QUE DEUS TE PROPORCIONA VIVER? | Devocional com Larissa Estrada

Play Episode Listen Later Sep 28, 2022 15:18

Oiii genteee, no último devocional conversamos sobre "COMPARAÇÃO" e hoje vamos dar continuidade nesse tema abordando sobre "CONTENTAMENTO". Quando abandonamos a comparação, entramos em um estado de contentamento que é a alegria e satisfação em nossa própria jornada com Cristo. Quando entendemos a nossa identidade em Cristo, nos tornamos satisfeitas com aquilo que Ele tem feito em nós e por nós. Eu quero sabeeer, conta pra mim nos comentários o que Senhor tem feito na sua vida através do devocional.

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On the Origin of the Strong Optical Variability of Emission-line Galaxies

Play Episode Listen Later Sep 22, 2022 0:29

On the Origin of the Strong Optical Variability of Emission-line Galaxies by Ruqiu Lin et al. on Thursday 22 September Emission-line galaxies (ELGs) are crucial in understanding the formation and evolution of galaxies, while little is known about their variability. Here we report the study on the optical variability of a sample of ELGs selected in the COSMOS field, which has narrow-band observations in two epochs separated by $gtrsim$ 12 years. This sample was observed with Suprime-Cam (SC) and Hyper Suprime-Cam (HSC) on the $Subaru$ telescope in NB816 and $i'/i$ bands, respectively. After carefully removing the wing effect of a narrow-band filter, we check the optical variability in a sample of 181 spectroscopically confirmed ELGs. We find that 0 (0/68) Ha emitters, 11.9% (5/42) [OIII] emitters, and 0 (0/71) [OII] emitters show significant variability ($|Delta m_{NB}| geq 3,sigma_{Delta m_{NB,AGN}} = 0.20, mag$) in the two-epoch narrow-band observations. We investigate the presence of active galactic nucleus (AGN) in this variable ELG (var-ELG) sample with three methods, including X-ray luminosity, mid-infrared activity, and radio-excess. We find zero bright AGN in this var-ELG sample, but cannot rule out the contribution from faint AGN. We find that SNe could also dominate the variability of the var-ELG sample. The merger morphology shown in the HST/F814W images of all the var-ELG sample is in agreement with the enhancement of star formation, i.e., the SNe activity. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.07087v2

origin delta emission nb subaru agn galaxies el g optical variability arxiv sne oii oiii

Low-ionization structures in planetary nebulae -- II Densities, temperatures, abundances and excitation of 6 PNe

Play Episode Listen Later Sep 22, 2022 0:54

Low-ionization structures in planetary nebulae -- II Densities, temperatures, abundances and excitation of 6 PNe by M. Belén Mari et al. on Thursday 22 September Here we present the spatially resolved study of six Galactic planetary nebulae (PNe), namely IC 4593, Hen 2-186, Hen 2-429, NGC 3918, NGC 6543 and NGC 6905, from intermediate-resolution spectra of the 2.5 m Isaac Newton Telescope and the 1.54 m Danish telescope. The physical conditions (electron densities, N$_{e}$, and temperatures, T$_{e}$), chemical compositions and dominant excitation mechanisms for the different regions of these objects are derived, in an attempt to go deeper on the knowledge of the low-ionization structures (LISs) hosted by these PNe. We reinforce the previous conclusions that LISs are characterized by lower (or at most equal) N$_{e}$ than their associated rims and shells. As for the T$_{e}$, we point out a textit{possible} different trend between the N and O diagnostics. T$_e$[NII] does not show significant variations throughout the nebular components, whereas T$_e$[OIII] appears to be slightly higher for LISs. The much larger uncertainties associated with the T$_e$[OIII] of LISs do not allow robust conclusions. Moreover, the chemical abundances show no variation from one to another PN components, not even contrasting LISs with rims and shells, as also found in a number of other works. By discussing the ionization photon flux due to shocks and stellar radiation, we explore the possible mechanisms responsible for the excitation of LISs. We argue that the presence of shocks in LISs is not negligible, although there is a strong dependence on the orientation of the host PNe and LISs. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.10988v1

danish structures galactic ic planetary temperatures hen liss pn nii ngc arxiv pne excitation nebulae ionization densities oiii

The survey of planetary nebulae in Andromeda M31 IV Radial oxygen and argon abundance gradients of the thin and thicker disc

Play Episode Listen Later Sep 21, 2022 1:06

The survey of planetary nebulae in Andromeda M31 IV Radial oxygen and argon abundance gradients of the thin and thicker disc by Souradeep Bhattacharya et al. on Wednesday 21 September We obtain a magnitude-limited sample of Andromeda (M 31) disc PNe with chemical abundance estimated through the direct detection of the [OIII] 4363 $mathring{mathrm A}$ line. This leads to $205$ and $200$ PNe with oxygen and argon abundances respectively. We find that high- and low-extinction M 31 disc PNe have statistically distinct argon and oxygen abundance distributions. In the radial range $2-30$ kpc, the older low-extinction disc PNe are metal-poorer on average with a slightly positive radial oxygen abundance gradient ($0.006 pm 0.003$ dex/kpc) and slightly negative for argon ($-0.005 pm 0.003$ dex/kpc), while the younger high-extinction disc PNe are metal-richer on average with steeper radial abundance gradients for both oxygen ($-0.013 pm 0.006$ dex/kpc) and argon ($-0.018 pm 0.006$ dex/kpc), similar to the gradients computed for the M 31 HII regions. The M 31 disc abundance gradients are consistent with values computed from major merger simulations, with the majority of the low-extinction PNe being the older pre-merger disc stars in the thicker disc, and the majority of the high-extinction PNe being younger stars in the thin disc, formed during and after the merger event. The chemical abundance of the M 31 thicker disc has been radially homogenized because of the major merger. Accounting for disc scale-lengths, the positive radial oxygen abundance gradient of the M 31 thicker disc is in sharp contrast to the negative one of the MW thick disc. However, the thin discs of the MW and M 31 have remarkably similar negative oxygen abundance gradients. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2203.06428v2

abundance survey accounting disc oxygen thin planetary andromeda mw thicker radial argon hii arxiv pne gradients nebulae oiii

NuSTAR observations of a heavily X-ray obscured AGN in the dwarf galaxy J144013+024744

Play Episode Listen Later Sep 21, 2022 1:20

NuSTAR observations of a heavily X-ray obscured AGN in the dwarf galaxy J144013+024744 by Shrey. Ansh et al. on Wednesday 21 September We present a multi-wavelength analysis of the dwarf Seyfert-2 galaxy J$144013+024744$, a candidate obscured active galactic nucleus (AGN) thought to be powered by an intermediate-mass black hole (IMBH, $M_bullet approx 10^{4-6} M_odot$) of mass $M_{bullet} sim 10^{5.2}M_odot$. To study its X-ray properties, we targeted J$144013+024744$ with NuSTAR for $approx 100$ ks. The X-ray spectrum was fitted with absorbed power law, Pexmon and a physical model (RXTorus). A Bayesian X-ray analysis was performed to estimate the posteriors. The phenomenological and the physical models suggest the AGN to be heavily obscured by a column density of $N_{rm H} = (3.4-7.0)times10^{23}$ cm$^{-2}$. In particular, the RXTorus model with a sub-solar metallicity suggests the obscuring column to be almost Compton-thick. We compared the $2-10$ keV intrinsic X-ray luminosity with the inferred X-ray luminosities based on empirical scaling relations for unobscured AGNs using $L_{rm [OIV](25.89mu {rm m})}$, $L_{[{rm OIII}](5007 {rm angstrom})}$, and $L_{6rm mu m}$ and found that the high-excitation $[{rm OIV}]$ line provides a better estimate of the intrinsic $2-10$ keV X-ray luminosity ($L_{2-10}^{rm int} sim 10^{41.41}{rm erg s}^{-1}$). Our results suggest that J$144013+024744$ is the first type-2 dwarf galaxy that shows X-ray spectroscopic evidence for obscuration. The column density that we estimated is among the highest measured to date for IMBH-powered AGNs, implying that a typical AGN torus geometry might extend to the low-mass end. This work has implications for constraining the black hole occupation fraction in dwarf galaxies using X-ray observations. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.09913v1

galaxy observations compton heavily agn x ray dwarf arxiv obscured shrey nustar seyfert agns oiii

CLASSY IV: Exploring UV diagnostics of the interstellar medium in local high- z analogs at the dawn of the JWST era

Play Episode Listen Later Sep 21, 2022 1:25

CLASSY IV: Exploring UV diagnostics of the interstellar medium in local high- z analogs at the dawn of the JWST era by Matilde Mingozzi et al. on Wednesday 21 September The COS Legacy Archive Spectroscopic SurveY (CLASSY) HST/COS treasury program provides the first high-resolution spectral catalogue of 45 local high-z analogues in the UV (1200-2000AA) to investigate their stellar and gas properties. We present a toolkit of UV interstellar medium (ISM) diagnostics, analyzing the main emission lines of CLASSY spectra (i.e., NIV]$lambdalambda$1483,87, CIV$lambdalambda$1548,51, HeII$lambda$1640, OIII]$lambdalambda$1661,6, SiIII]$lambdalambda$1883,92, CIII]$lambdalambda$1907,9). Specifically, we focus our investigation on providing accurate diagnostics for reddening, electron density and temperature, gas-phase metallicity and ionization parameter, taking into account the different ionization zones of the ISM. We calibrate our UV toolkit using well-known optical diagnostics, analyzing archival optical spectra for all the CLASSY targets. We find that UV density diagnostics estimate ne values that are ~1-2 dex higher (e.g., ne(CIII]$lambdalambda$}1907,9)~10$^4$cm$^{-3}$) than those inferred from their optical counterparts (e.g., ne([SII]$lambdalambda$6717,31)~10$^2$cm$^{-3}$). Te derived from the hybrid ratio OIII]$lambda$1666/[OIII]$lambda$}5007 proves to be a reliable Te diagnostic, with differences in 12+log(O/H) within ~$pm$0.3dex. We also investigate the relation between the stellar and gas E(B-V), finding consistent values at high specific star formation rates, while at low sSFR we confirm an excess of dust attenuation in the gas. Finally, we investigate UV line ratios and equivalent widths to provide correlations with 12+log(O/H) and log(U), but note there are degeneracies between the two. With this suite of UV-based diagnostics, we illustrate the pivotal role CLASSY plays in understanding the chemical and physical properties of high-z systems that JWST can observe in the rest-frame UV. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.09047v2

local aa uv niv classy diagnostics ism civ jwst sii arxiv analogs siiii interstellar medium oiii

The survey of planetary nebulae in Andromeda M31 IV Radial oxygen and argon abundance gradients of the thin and thicker disc

Play Episode Listen Later Sep 21, 2022 1:06

The survey of planetary nebulae in Andromeda M31 IV Radial oxygen and argon abundance gradients of the thin and thicker disc by Souradeep Bhattacharya et al. on Wednesday 21 September We obtain a magnitude-limited sample of Andromeda (M 31) disc PNe with chemical abundance estimated through the direct detection of the [OIII] 4363 $mathring{mathrm A}$ line. This leads to $205$ and $200$ PNe with oxygen and argon abundances respectively. We find that high- and low-extinction M 31 disc PNe have statistically distinct argon and oxygen abundance distributions. In the radial range $2-30$ kpc, the older low-extinction disc PNe are metal-poorer on average with a slightly positive radial oxygen abundance gradient ($0.006 pm 0.003$ dex/kpc) and slightly negative for argon ($-0.005 pm 0.003$ dex/kpc), while the younger high-extinction disc PNe are metal-richer on average with steeper radial abundance gradients for both oxygen ($-0.013 pm 0.006$ dex/kpc) and argon ($-0.018 pm 0.006$ dex/kpc), similar to the gradients computed for the M 31 HII regions. The M 31 disc abundance gradients are consistent with values computed from major merger simulations, with the majority of the low-extinction PNe being the older pre-merger disc stars in the thicker disc, and the majority of the high-extinction PNe being younger stars in the thin disc, formed during and after the merger event. The chemical abundance of the M 31 thicker disc has been radially homogenized because of the major merger. Accounting for disc scale-lengths, the positive radial oxygen abundance gradient of the M 31 thicker disc is in sharp contrast to the negative one of the MW thick disc. However, the thin discs of the MW and M 31 have remarkably similar negative oxygen abundance gradients. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2203.06428v2

abundance survey accounting disc oxygen thin planetary andromeda mw thicker radial argon hii arxiv pne gradients nebulae oiii

CLASSY IV: Exploring UV diagnostics of the interstellar medium in local high- z analogs at the dawn of the JWST era

Play Episode Listen Later Sep 20, 2022 1:29

CLASSY IV: Exploring UV diagnostics of the interstellar medium in local high- z analogs at the dawn of the JWST era by Matilde Mingozzi et al. on Tuesday 20 September The COS Legacy Archive Spectroscopic SurveY (CLASSY) HST/COS treasury program provides the first high-resolution spectral catalogue of 45 local high-z analogues in the UV (1200-2000{AA}) to investigate their stellar and gas properties. We present a toolkit of UV interstellar medium (ISM) diagnostics, analyzing the main emission lines of CLASSY spectra (i.e., NIV]{lambda}{lambda}1483,87, CIV{lambda}{lambda}1548,51, HeII{lambda}1640, OIII]{lambda}{lambda}1661,6, SiIII]{lambda}{lambda}1883,92, CIII]{lambda}{lambda}1907,9). Specifically, we focus our investigation on providing accurate diagnostics for reddening, electron density and temperature, gas-phase metallicity and ionization parameter, taking into account the different ionization zones of the ISM. We calibrate our UV toolkit using well-known optical diagnostics, analyzing archival optical spectra for all the CLASSY targets. We find that UV density diagnostics estimate ne values that are ~1-2 dex higher (e.g., ne(CIII]{lambda}{lambda}1907,9)~10^4cm^{-3}) than those inferred from their optical counterparts (e.g., ne([SII]{lambda}{lambda}6717,31)~10^2cm^{-3}). Te derived from the hybrid ratio OIII]{lambda}1666/[OIII]{lambda}5007 proves to be a reliable Te diagnostic, with differences in 12+log(O/H) within ~+/-0.3dex. We also investigate the relation between the stellar and gas E(B-V), finding consistent values at high specific star formation rates, while at low sSFR we confirm an excess of dust attenuation in the gas. Finally, we investigate UV line ratios and equivalent widths to provide correlations with 12+log(O/H) and log(U), but note there are degeneracies between the two. With this suite of UV-based diagnostics, we illustrate the pivotal role CLASSY plays in understanding the chemical and physical properties of high-z systems that JWST can observe in the rest-frame UV. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.09047v1

local aa uv niv classy diagnostics ism civ jwst sii arxiv analogs siiii interstellar medium oiii

Correcting for small-displacement interlopers in BAO analyses

Play Episode Listen Later Sep 20, 2022 0:49

Correcting for small-displacement interlopers in BAO analyses by Setareh Foroozan et al. on Tuesday 20 September Due to the low resolution of slitless spectroscopy, future surveys including those made possible by the Roman and Euclid space telescopes will be prone to line mis-identification, leading to interloper galaxies at the wrong redshifts in the large-scale structure catalogues. The most pernicious of these have a small displacement between true and false redshift such that the interloper positions are correlated with the target galaxies. We consider how to correct for such contaminants, focusing on $rm Hbeta$ interlopers in [OIII] catalogues as will be observed by Roman, which are misplaced by $Delta d = 97 ,h^{-1},{rm Mpc}$ at redshift $z = 1$. Because this displacement is close to the BAO scale, the peak in the interloper-target galaxy cross-correlation function at the displacement scale can change the shape of the BAO peak in the auto-correlation of the contaminated catalogue, and lead to incorrect cosmological measurements if not accounted for properly. We consider how to build a model for the monopole and quadrupole moments of the contaminated correlation function, including an additional free parameter for the fraction of interlopers. The key input to this model is the cross-correlation between the population of galaxies forming the interlopers and the main target sample. It will be important to either estimate this using calibration data or to use the contaminated small-scale auto-correlation function to model it, which may be possible if a number of requirements about the galaxy populations are met. We find that this method is successful in measuring the BAO dilation parameters without significant degradation in accuracy, provided the cross-correlation function is accurately known. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2208.05001v2

delta correcting displacement analyses bao mpc euclid arxiv interlopers oiii

H1821+643: The most X-ray and infrared luminous AGN in the Swift BAT survey in the process of rapid stellar and supermassive black hole mass assembly

Play Episode Listen Later Sep 20, 2022 1:13

H1821+643: The most X-ray and infrared luminous AGN in the Swift BAT survey in the process of rapid stellar and supermassive black hole mass assembly by Hikaru Fukuchi et al. on Tuesday 20 September H1821+643 is the most X-ray luminous non-beamed AGN of $L_mathrm{14-150 keV}= 5.2times 10^{45}$ erg s$^{-1}$ in the Swift/BAT ultra-hard X-ray survey and it is also a hyper-luminous infrared (IR) galaxy $L_mathrm{IR} = 10^{13.2} L_odot$ residing in the center of a massive galaxy cluster, which is a unique environment achieving the rapid mass assembly of black holes (BH) and host galaxies in the local universe. We decompose the X-ray to IR spectral energy distribution (SED) into the AGN and starburst component using the SED fitting tool CIGALE-2022.0 and show that H1821+643 consumes a large amount of cold gas ($dot{M}_mathrm{con}$) with star-formation rate of $log ( mathrm{SFR}/M_{odot}~mathrm{yr}^{-1}) = 3.01 pm 0.04$ and BH accretion rate of $log (dot{M}_mathrm{BH}/M_{odot}~mathrm{yr}^{-1}) = 1.20 pm 0.05$. This high $dot{M}_mathrm{con}$ is larger than the cooling rate ($dot{M}_mathrm{cool}$) of the intra-cluster medium (ICM), $dot{M}_mathrm{con}/dot{M}_mathrm{cool} gtrsim 1$, which is one to two order magnitude higher than the typical value of other systems, indicating that H1821 provides the unique and extreme environment of rapid gas consumption. We also show that H1821+643 has an efficient cooling path achieving from $10^7$ K to $10^2$ K thanks to [OIII] 63 $mu mathrm{m}$, which is a main coolant in low temperature range ($10^4$ K to $10^2$ K) with a cooling rate of $dot{M}_{mathrm{cool}}=3.2times 10^5 M_{odot}mathrm{~yr^{-1}}$, and the star-forming region extends over 40 kpc scale. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.09255v1

survey swift ir rapid assembly stellar agn bh x ray infrared luminous sed icm arxiv supermassive black holes cigale oiii

CLASSY IV: Exploring UV diagnostics of the interstellar medium in local high- z analogs at the dawn of the JWST era

Play Episode Listen Later Sep 20, 2022 1:14

CLASSY IV: Exploring UV diagnostics of the interstellar medium in local high- z analogs at the dawn of the JWST era by Matilde Mingozzi et al. on Tuesday 20 September The COS Legacy Archive Spectroscopic SurveY (CLASSY) HST/COS treasury program provides the first high-resolution spectral catalogue of 45 local high-z analogues in the UV (1200-2000{AA}) to investigate their stellar and gas properties. We present a toolkit of UV interstellar medium (ISM) diagnostics, analyzing the main emission lines of CLASSY spectra (i.e., NIV]{lambda}{lambda}1483,87, CIV{lambda}{lambda}1548,51, HeII{lambda}1640, OIII]{lambda}{lambda}1661,6, SiIII]{lambda}{lambda}1883,92, CIII]{lambda}{lambda}1907,9). Specifically, we focus our investigation on providing accurate diagnostics for reddening, electron density and temperature, gas-phase metallicity and ionization parameter, taking into account the different ionization zones of the ISM. We calibrate our UV toolkit using well-known optical diagnostics, analyzing archival optical spectra for all the CLASSY targets. We find that UV density diagnostics estimate ne values that are ~1-2 dex higher (e.g., ne(CIII]{lambda}{lambda}1907,9)~10^4cm^{-3}) than those inferred from their optical counterparts (e.g., ne([SII]{lambda}{lambda}6717,31)~10^2cm^{-3}). Te derived from the hybrid ratio OIII]{lambda}1666/[OIII]{lambda}5007 proves to be a reliable Te diagnostic, with differences in 12+log(O/H) within ~+/-0.3dex. We also investigate the relation between the stellar and gas E(B-V), finding consistent values at high specific star formation rates, while at low sSFR we confirm an excess of dust attenuation in the gas. Finally, we investigate UV line ratios and equivalent widths to provide correlations with 12+log(O/H) and log(U), but note there are degeneracies between the two. With this suite of UV-based diagnostics, we illustrate the pivotal role CLASSY plays in understanding the chemical and physical properties of high-z systems that JWST can observe in the rest-frame UV. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.09047v1

local aa uv niv classy diagnostics ism civ jwst sii arxiv analogs siiii interstellar medium oiii

Correcting for small-displacement interlopers in BAO analyses

Play Episode Listen Later Sep 20, 2022 0:49

Correcting for small-displacement interlopers in BAO analyses by Setareh Foroozan et al. on Tuesday 20 September Due to the low resolution of slitless spectroscopy, future surveys including those made possible by the Roman and Euclid space telescopes will be prone to line mis-identification, leading to interloper galaxies at the wrong redshifts in the large-scale structure catalogues. The most pernicious of these have a small displacement between true and false redshift such that the interloper positions are correlated with the target galaxies. We consider how to correct for such contaminants, focusing on $rm Hbeta$ interlopers in [OIII] catalogues as will be observed by Roman, which are misplaced by $Delta d = 97 ,h^{-1},{rm Mpc}$ at redshift $z = 1$. Because this displacement is close to the BAO scale, the peak in the interloper-target galaxy cross-correlation function at the displacement scale can change the shape of the BAO peak in the auto-correlation of the contaminated catalogue, and lead to incorrect cosmological measurements if not accounted for properly. We consider how to build a model for the monopole and quadrupole moments of the contaminated correlation function, including an additional free parameter for the fraction of interlopers. The key input to this model is the cross-correlation between the population of galaxies forming the interlopers and the main target sample. It will be important to either estimate this using calibration data or to use the contaminated small-scale auto-correlation function to model it, which may be possible if a number of requirements about the galaxy populations are met. We find that this method is successful in measuring the BAO dilation parameters without significant degradation in accuracy, provided the cross-correlation function is accurately known. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2208.05001v2

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O3 Mining (OIII) - Buy it at Cash and Get an Option Worth $400-600MM!!

Play Episode Listen Later Sep 17, 2022 13:36

O3 Mining Inc. is a gold exploration and development company focused on its assets located in Québec, Canada. The company forms part of the Osisko group of companies resulting in it benefitting from Osiko's expertise in successful mine development. The company's flagship properties include the Marban Project and the Alpha Project in the Val-d'Or district of Quebec. The Marban Project is located approximately 15 km west of the town of Val-d'Or and is a 1,023-hectare land package, consisting of approximately 30 mining claims and three mining concessions. The Alpha project of the company is a 7,754-hectare land package which is located 8 east of the town of Val-d'Or in Quebec, and 3 km south of the El Dorado South Lamaque Mine.

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On the Origin of the Strong Optical Variability of Emission-line Galaxie

Play Episode Listen Later Sep 15, 2022 0:29

On the Origin of the Strong Optical Variability of Emission-line Galaxie by Ruqiu Lin et al. on Thursday 15 September Emission-line galaxies (ELGs) are crucial in understanding the formation and evolution of galaxies, while little is known about their variability. Here we report the study on the optical variability of a sample of ELGs selected in the COSMOS field, which has narrow-band observations in two epochs separated by $gtrsim$ 12 years. This sample was observed with Suprime-Cam (SC) and Hyper Suprime-Cam (HSC) on the $Subaru$ telescope in NB816 and $i'/i$ bands, respectively. After carefully removing the wing effect of a narrow-band filter, we check the optical variability in a sample of 181 spectroscopically confirmed ELGs. We find that 0 (0/68) Ha emitters, 11.9% (5/42) [OIII] emitters, and 0 (0/71) [OII] emitters show significant variability ($|Delta m_{NB}| geq 3,sigma_{Delta m_{NB,AGN}} = 0.20, mag$) in the two-epoch narrow-band observations. We investigate the presence of active galactic nucleus (AGN) in this variable ELG (var-ELG) sample with three methods, including X-ray luminosity, mid-infrared activity, and radio-excess. We find zero bright AGN in this var-ELG sample, but cannot rule out the contribution from faint AGN. We find that SNe could also dominate the variability of the var-ELG sample. The merger morphology shown in the HST/F814W images of all the var-ELG sample is in agreement with the enhancement of star formation, i.e., the SNe activity. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.07087v1

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Empirical constraints on the turbulence in QSO host nebulae from velocity structure function measurements

Play Episode Listen Later Sep 12, 2022 1:05

Empirical constraints on the turbulence in QSO host nebulae from velocity structure function measurements by Mandy C. Chen et al. on Monday 12 September We present the first empirical constraints on the turbulent velocity field of the diffuse circumgalactic medium around four luminous QSOs at $z!approx!0.5$--1.1. Spatially extended nebulae of $approx!50$--100 physical kpc in diameter centered on the QSOs are revealed in [OII]$lambdalambda,3727,3729$ and/or [OIII]$lambda,5008$ emission lines in integral field spectroscopic observations obtained using MUSE on the VLT. We measure the second- and third-order velocity structure functions (VSFs) over a range of scales, from $lesssim!5$ kpc to $approx!20$--50 kpc, to quantify the turbulent energy transfer between different scales in these nebulae. While no constraints on the energy injection and dissipation scales can be obtained from the current data, we show that robust constraints on the power-law slope of the VSFs can be determined after accounting for the effects of atmospheric seeing, spatial smoothing, and large-scale bulk flows. Out of the four QSO nebulae studied, one exhibits VSFs in spectacular agreement with the Kolmogorov law, expected for isotropic, homogeneous, and incompressible turbulent flows. The other three fields exhibit a shallower decline in the VSFs from large to small scales but with loose constraints, in part due to a limited dynamic range in the spatial scales in seeing-limited data. For the QSO nebula consistent with the Kolmogorov law, we determine a turbulence energy cascade rate of $approx!0.2$ cm$^{2}$ s$^{-3}$. We discuss the implication of the observed VSFs in the context of QSO feeding and feedback in the circumgalactic medium. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.04344v1

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Empirical constraints on the turbulence in QSO host nebulae from velocity structure function measurements

Play Episode Listen Later Sep 12, 2022 0:56

Empirical constraints on the turbulence in QSO host nebulae from velocity structure function measurements by Mandy C. Chen et al. on Monday 12 September We present the first empirical constraints on the turbulent velocity field of the diffuse circumgalactic medium around four luminous QSOs at $z!approx!0.5$--1.1. Spatially extended nebulae of $approx!50$--100 physical kpc in diameter centered on the QSOs are revealed in [OII]$lambdalambda,3727,3729$ and/or [OIII]$lambda,5008$ emission lines in integral field spectroscopic observations obtained using MUSE on the VLT. We measure the second- and third-order velocity structure functions (VSFs) over a range of scales, from $lesssim!5$ kpc to $approx!20$--50 kpc, to quantify the turbulent energy transfer between different scales in these nebulae. While no constraints on the energy injection and dissipation scales can be obtained from the current data, we show that robust constraints on the power-law slope of the VSFs can be determined after accounting for the effects of atmospheric seeing, spatial smoothing, and large-scale bulk flows. Out of the four QSO nebulae studied, one exhibits VSFs in spectacular agreement with the Kolmogorov law, expected for isotropic, homogeneous, and incompressible turbulent flows. The other three fields exhibit a shallower decline in the VSFs from large to small scales but with loose constraints, in part due to a limited dynamic range in the spatial scales in seeing-limited data. For the QSO nebula consistent with the Kolmogorov law, we determine a turbulence energy cascade rate of $approx!0.2$ cm$^{2}$ s$^{-3}$. We discuss the implication of the observed VSFs in the context of QSO feeding and feedback in the circumgalactic medium. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.04344v1

muse constraints velocity turbulence measurements empirical arxiv vlt nebulae spatially oii kolmogorov structure function oiii qsos vsfs

SFR estimations from z=0 to z=0 9 -- A comparison of SFR calibrators for star-forming galaxies

Play Episode Listen Later Sep 12, 2022 1:13

SFR estimations from z=0 to z=0 9 -- A comparison of SFR calibrators for star-forming galaxies by M. Figueira et al. on Monday 12 September Using VIPERS, we estimated a set of SFR based on photometric and spectroscopic data. We used, as estimators, photometric bands from ultraviolet to mid-infrared, and spectral lines. Assuming a reference SFR obtained from the spectral energy distribution reconstructed with Code Investigating GALaxy Emission, we estimated the reliability of each band as an SFR tracer. We used GSWLC to trace the dependence of these SFR calibrators with redshift. The far and near UV, u-band and 24-$mu$m bands, as well as $L_{TIR}$, are found to be good SFR tracers up to $zsim0.9$ with a strong dependence on the attenuation prescription used for the bluest bands (scatter of SFR of 0.26, 0.14, 0.15, 0.23, and 0.24dex for VIPERS, and 0.25, 0.24, 0.09, 0.12, and 0.12dex for GSWLC). The 8-$mu$m band provides only a rough estimate of the SFR as it depends on metallicity and polycyclic aromatic hydrocarbon properties (scatter of 0.23dex for VIPERS). We estimated the scatter of rest-frame luminosity estimations from CIGALE to be 0.26, 0.14, 0.12, 0.15, and 0.20dex for FUV, NUV, ugriz, K$_{mathrm{s}}$, and 8-24$mu$m-$L_{mathrm{TIR}}$). At intermediate redshift, the H$beta$ line is a reliable SFR tracer (scatter of 0.19dex) and the [OII] line gives an equally good estimation when the metallicity from the $R_{23}$ parameter is taken into account (0.17 for VIPERS and 0.20dex for GSWLC). A calibration based on [OIII] retrieves the SFR only when additional information such as the metallicity or the ionization parameter of galaxies are used (0.26 for VIPERS and 0.20dex for GSWLC), diminishing its usability as a direct SFR tracer. Based on rest-frame luminosities estimated with CIGALE, we propose our own set of calibrations from FUV, NUV, u-band, 8, 24$mu$m, $L_{TIR}$, H$beta$, [OII], and [OIII]. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.04390v1

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SFR estimations from z=0 to z=0 9 -- A comparison of SFR calibrators for star-forming galaxies

Play Episode Listen Later Sep 12, 2022 1:28

SFR estimations from z=0 to z=0 9 -- A comparison of SFR calibrators for star-forming galaxies by M. Figueira et al. on Monday 12 September Using VIPERS, we estimated a set of SFR based on photometric and spectroscopic data. We used, as estimators, photometric bands from ultraviolet to mid-infrared, and spectral lines. Assuming a reference SFR obtained from the spectral energy distribution reconstructed with Code Investigating GALaxy Emission, we estimated the reliability of each band as an SFR tracer. We used GSWLC to trace the dependence of these SFR calibrators with redshift. The far and near UV, u-band and 24-$mu$m bands, as well as $L_{TIR}$, are found to be good SFR tracers up to $zsim0.9$ with a strong dependence on the attenuation prescription used for the bluest bands (scatter of SFR of 0.26, 0.14, 0.15, 0.23, and 0.24dex for VIPERS, and 0.25, 0.24, 0.09, 0.12, and 0.12dex for GSWLC). The 8-$mu$m band provides only a rough estimate of the SFR as it depends on metallicity and polycyclic aromatic hydrocarbon properties (scatter of 0.23dex for VIPERS). We estimated the scatter of rest-frame luminosity estimations from CIGALE to be 0.26, 0.14, 0.12, 0.15, and 0.20dex for FUV, NUV, ugriz, K$_{mathrm{s}}$, and 8-24$mu$m-$L_{mathrm{TIR}}$). At intermediate redshift, the H$beta$ line is a reliable SFR tracer (scatter of 0.19dex) and the [OII] line gives an equally good estimation when the metallicity from the $R_{23}$ parameter is taken into account (0.17 for VIPERS and 0.20dex for GSWLC). A calibration based on [OIII] retrieves the SFR only when additional information such as the metallicity or the ionization parameter of galaxies are used (0.26 for VIPERS and 0.20dex for GSWLC), diminishing its usability as a direct SFR tracer. Based on rest-frame luminosities estimated with CIGALE, we propose our own set of calibrations from FUV, NUV, u-band, 8, 24$mu$m, $L_{TIR}$, H$beta$, [OII], and [OIII]. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.04390v1

comparison uv assuming galaxies vipers tir figueira sfr arxiv cigale estimations oii fuv oiii nuv

Metallicities of Five z > 5 Emission-Line Galaxies in SMACS 0723 Revealed by JWST

Play Episode Listen Later Sep 12, 2022 0:42

Metallicities of Five z > 5 Emission-Line Galaxies in SMACS 0723 Revealed by JWST by A. J. Taylor et al. on Monday 12 September JWST's Early Release Observations of the lensing cluster SMACS J0723.3-7327 have given an unprecedented spectroscopic look into the high-redshift universe. These observations reveal five galaxies at z > 5. All five have detectable [OIII]4363 line emission, indicating that these galaxies have high temperatures and low metallicities and that they are highly star forming. In recent work, the metallicities of these five galaxies have been studied using various techniques. Here we summarize and compare these previous results, as well as perform our own measurements of the metallicities using improved methodologies that optimize the extraction of the emission lines. In particular, we use simultaneous line fitting and a fixed Balmer decrement correction, as well as a novel footprint measurement of the emission lines in the 2D spectra, to produce higher fidelity line ratios that are less sensitive to calibration and systematic effects. We then compare our metallicities to those of z < 1 galaxies with high rest-frame equivalent widths of H-beta, finding that they may be good analogs. Finally, we estimate that the JWST galaxies out to z ~ 8 are young compared to the age of the universe. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2208.06418v2

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Revisiting the Mass-Excitation MEx diagram using the MaNGA dataset

Play Episode Listen Later Sep 11, 2022 0:36

Revisiting the Mass-Excitation MEx diagram using the MaNGA dataset by J. K. Barrera-Ballesteros et al. on Sunday 11 September The diagram comparing the flux ratio of the [OIII] and H$beta$ emission lines with the total stellar mass of galaxies (also known as the mass-excitation diagram, MEx) has been widely used to classify the ionization mechanism in high redshift galaxies between star formation and active galactic nuclear ones. This diagram was mainly derived using single-fiber spectroscopy from the SDSS-DR7 survey. In this study, we revise this diagram using the central and integrated spectral measurement from the entire Integral Field Spectroscopic MaNGA sample. Our results suggest that along with the physical parameters of this diagram, the equivalent width of the H$alpha$ emission line is also required to constrain the ionization mechanism of a high-redshifted galaxy. Furthermore, the location of a galaxy in the excitation-mass diagram varies depending on the use of central or integrated properties. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.03986v1

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Metal-Enriched Neutral Gas Reservoir around a Strongly-lensed, Low-mass Galaxy at z=4 Identified by JWST NIRISS and VLT MUSE

Play Episode Listen Later Sep 8, 2022 1:24

Metal-Enriched Neutral Gas Reservoir around a Strongly-lensed, Low-mass Galaxy at z=4 Identified by JWST NIRISS and VLT MUSE by Xiaojing Lin et al. on Thursday 08 September Direct observations of low-mass, low-metallicity galaxies at $zgtrsim4$ provide an indispensable opportunity for detailed inspection of the ionization radiation, gas flow, and metal enrichment in sources similar to those that reionized the Universe. Combining the James Webb Space Telescope (JWST), VLT/MUSE, and ALMA, we present detailed observations of a strongly lensed, low-mass ($approx 10^{7.6}$ ${rm M}_odot$) galaxy at $z=3.98$ (also see Vanzella et al. 2022). We identify strong narrow nebular emission, including CIV $lambdalambda1548,1550$, HeII $lambda1640$, OIII] $lambdalambda1661,1666$, [NeIII] $lambda3868$, [OII] $lambda3727$, and Balmer series of Hydrogen from this galaxy, indicating a metal-poor HII region ($lesssim 0.12 {rm Z}_odot$) powered by massive stars. Further, we detect a metal-enriched damped Ly$alpha$ system (DLA) associated with the galaxy with the HI column density of $N_{rm{HI}}approx 10^{21.8}$ cm$^{-2}$. The metallicity of the associated DLA may reach the super solar metallicity (${gtrsim Z}_odot$). Moreover, thanks to JWST and gravitational lensing, we present the resolved UV slope ($beta$) map at the spatial resolution of $approx 100$ pc at $z=4$, with steep UV slopes reaching $beta approx -2.5$ around three star-forming clumps. Combining with low-redshift analogs, our observations suggest that low-mass, low-metallicity galaxies, which dominate reionization, could be surrounded by a high covering fraction of the metal-enriched, neutral-gaseous clouds. This implies that the metal enrichment of low-mass galaxies is highly efficient, and further support that in low-mass galaxies, only a small fraction of ionizing radiation can escape through the interstellar or circumgalactic channels with low column-density neutral gas. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2209.03376v1

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HI 21-cm absorption in radio-loud AGN with double-peaked OIII emission

Play Episode Listen Later Sep 7, 2022 0:22

HI 21-cm absorption in radio-loud AGN with double-peaked OIII emission by Rajeshwari Dutta et al. on Wednesday 07 September Different physical processes in galaxy evolution, such as galaxy mergers that lead to coalescence of dual Active Galactic Nuclei (AGN) and outflows emanating from the narrow line region, can leave their imprint on the optical spectra of AGN in the form of double-peaked narrow emission lines. To investigate the neutral gas in the centres of such AGN, we have conducted a pilot survey of HI 21-cm absorption, using the upgraded Giant Metrewave Radio Telescope (uGMRT), in radio-loud AGN whose optical spectra show double-peaked [OIII] emission lines at z~50%) in the ground-based optical images than that for the systems that appear single and undisturbed (~25%). This is consistent with the high incidence of HI 21-cm absorption observed in z

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O3 Mining (OIII) - Gold: Fireside Chat

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Play Episode Listen Later Jul 4, 2022 16:46

Interview with Jose Vizquerra, President & CEO of O3 Mining Inc. (TSX-V:OIII) at THE Mining Investment Event of the North.

O3 Mining (OIII) - Re-Rate Expected after PFS in Q3/22

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Play Episode Listen Later Jun 30, 2022 12:28

O3 Mining Inc. is a Canada-based mineral exploration company. The Company is focused on the acquisition, exploration, and development of precious metal resource properties in Canada and is primarily focused on Quebec. Its flagship properties include the Marban Property and the Alpha Property. The Company's 100% owned Marban Project is located approximately 15 kilometers west of the town of Val-d'Or in the Abitibi-Temiscamingue region of Quebec, Canada. It consists of approximately 30 mining claims and three mining concessions, covering approximately 1,023 hectares. The Alpha property is located eight kilometers east of Val-d'Or, Quebec, and three kilometers south of the El Dorado South Lamaque Mine. The property covers approximately 7,754 hectares and includes 20 kilometers of the prolific Cadillac Break. It also has additional projects in the Labrador and Abitibi areas of Quebec, which include Sleepy, Gwillim, Matachewan-Wydee, Harricana and other properties.

QUAIS SÃO OS FRUTOS DE UM DISCÍPULO DE JESUS? | Devocional com Larissa Estrada

Play Episode Listen Later Jun 10, 2022 17:42

Oiii minha gente, muito feliz que chegou o dia de mais um devocional com vocês, sejam muito bem-vindas a esse cantinho

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O3 Mining (OIII) - Very Attractive Acquisitions and Partnership

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Play Episode Listen Later May 29, 2022 26:36

O3 Mining Inc. is a Canada-based mineral exploration company. The Company is focused on the acquisition, exploration, and development of precious metal resource properties in Canada and is primarily focused on Quebec. Its flagship properties include the Marban Property and the Alpha Property. The Company's 100% owned Marban Project is located approximately 15 kilometers west of the town of Val-d'Or in the Abitibi-Temiscamingue region of Quebec, Canada. It consists of approximately 30 mining claims and three mining concessions, covering approximately 1,023 hectares. The Alpha property is located eight kilometers east of Val-d'Or, Quebec, and three kilometers south of the El Dorado South Lamaque Mine. The property covers approximately 7,754 hectares and includes 20 kilometers of the prolific Cadillac Break. It also has additional projects in the Labrador and Abitibi areas of Quebec, which include Sleepy, Gwillim, Matachewan-Wydee, Harricana and other properties.

A BONDADE DE DEUS | DEVOCIONAL COM LARISSA ESTRADA

Play Episode Listen Later May 19, 2022 21:20

Oiii! Muito feliz de estar com você em mais um devocional juntas, e agora em um novo horário, bem cedinho, pro seu dia começar cheio de Deus

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COMO SABER SE SOU SALVA? | DEVOCIONAL COM LARISSA ESTRADA

Play Episode Listen Later May 19, 2022 21:04

Oiii minha gente, vamos começar o dia tendo um tempo com Deus? E para o devocional de hoje vamos refletir em Efésios 2:8-9, onde Deus fala que somos salvos PELA GRAÇA por meio da fé, é o nosso Deus salvador

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DEIXE DEUS TE CONSOLAR | DEVOCIONAL COM LARISSA ESTRADA

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Play Episode Listen Later May 19, 2022 18:38

Oiii gente, bora pro devocional de hoje?

VOCÊ ESCOLHE QUEM ENTRA NA SUA VIDA? | Lari Responde #03

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Play Episode Listen Later May 16, 2022 17:03

Oiii gente!! O caso de hoje no quadro LARI RESPONDE é sempre muuuito perguntado lá no meu Instagram (@larissaestradaa). Vamos falar sobre AMIZADE, e como é difícil ter boas amizades, né?! Se você também tem problemas com amizades, problemas com relacionamentos e sofre nessa área, então assiste o vídeo o final que vai te ajudar ♥

DESCUBRA SE VOCÊ É MANIPULADORA | PODNOSSO #03

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Play Episode Listen Later May 16, 2022 67:56

Oiii gente, mais um PODNOSSO no ar com a Kauane Leite e a Letícia Rivero

Viajany – #36 Zé Destininho, suco de tomate e cerveja quente, com Gi e João

Play Episode Listen Later May 14, 2022

Oiii, viajaners! Hoje eu trouxe um casal incrível para contar histórias! A Gi e o João tem perrengues chiques, não … Mais

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O3 Mining (OIII) - "One of the Better Projects in Canada, Period."

Play Episode Listen Later Apr 1, 2022 21:41

O3 Mining Inc is a Canada-based gold exploration company. The Company operates as a mine development and consolidator of exploration properties in gold camps in Canada. The Company holds a 100% interest in a number of properties in Quebec (137,000 hectares). The Company controls 61,000 hectares in Val D'Or and over 50 kilometers of strike length of the Cadillac-Larder Lake Faut. The Company also has a portfolio of assets in the James Bay and Chibougamau regions of Quebec. The Company's operated projects are Gwillim Property, The Cadillac Break Properties, Malartic Property and Alpha Property. The Cadillac Break Properties are located in the southeastern Abitibi Greenstone Belt of the Archean Superior Province in the Canadian Shield. The Gwillim property is located in the Barlow township, close to Chibougamau, consisting of 38 mining claims, covering 1715 hectares. It also owns the Denain-Pershing gold bearing property that covers approximately 10,001 hectares.

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Viajany – #35 Eu achei que eu estava morta, com Ju Romano

Play Episode Listen Later Feb 27, 2022

Oiii, viajaners! Neste episódio eu entrevistei essa pessoa incrível para conversar comigo e com vocês: a Ju Romano! o/ Além … Mais

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O3 Mining (OIII) - Technical Analysis & Due Diligence

Play Episode Listen Later Feb 19, 2022 51:06

O3 Mining Inc., an Osisko Group company, is a gold explorer and mine developer on the road to produce from its highly prospective gold camps in Québec, Canada. O3 Mining benefits from the support, previous mine-building success and expertise of the Osisko team as it grows towards being a gold producer with several multi-million ounce deposits in Québec.O3 Mining is well-capitalized and owns a 100% interest in all its properties (137,000 hectares) in Québec. O3 Mining trades on the TSX Venture Exchange (TSX.V: OIII) and on OTC Markets (OTCQX: OIIIF). The company is focused on delivering superior returns to its shareholders and long-term benefits to its stakeholders.

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Viajany – #34 As coleções de perrengue-chique, com Cleyton Santos

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Play Episode Listen Later Feb 14, 2022

Oiii, viajaners! Neste episódio eu chamei meu amigo MARAVILHOSO Cleyton para contar dos maiores perrengues chiques da vida dele. Tem … Mais

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Henrique Brinque cast ep9

Henrique brinque cast

Play Episode Listen Later Feb 12, 2022 6:14

Oiii

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Marília Mendonça e o seu legado

MarÃlia MendonÃ§a

Play Episode Listen Later Dec 9, 2021 6:42

Oiii, esse podcast tem o foco total na eterna rainha da sofrência Marilia Mendonça, nele nos falamos sobre sua trajetória, sua vida pessoal e principalmente o seu legado. Criado pelas alunas Maria Eduarda Fonseca, Marialyce Ingrid e Sabrina Cardoso da escola Ceep Professora Lourdinha Guerra. Espero que gostem!

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Coração sujo | O Barril de Amontillado | Edgar Allan Poe.

Gu, Me Conta!

Play Episode Listen Later Nov 25, 2021 9:00

Oiii, protagonistas! Gente, neste episódios existem algumas provocações para nos fazer refletir sobre o que somos capazes de fazer com o outro. Ah, se você gosta do meu conteúdo e do meu trabalho artístico saiba que o meu livro digital de poesias "A Estreia do Protagonista" está disponível na Amazon. Link: https://www.amazon.com.br/Estreia-do-Protagonista-Augusto-Haagensen-ebook/dp/B09M9DSKWD/ref=sr_1_3?__mk_pt_BR=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=a+estreia+do+protagonista&qid=1637852366&s=digital-text&sr=1-3

O3 Mining (OIII) - End of Year Update & Investor Meetings, London

Play Episode Listen Later Nov 21, 2021 19:01

O3 Mining Inc., an Osisko Group company, is a gold explorer and mine developer on the road to produce from its highly prospective gold camps in Québec, Canada. O3 Mining benefits from the support, previous mine-building success and expertise of the Osisko team as it grows towards being a gold producer with several multi-million ounce deposits in Québec.O3 Mining is well-capitalized and owns a 100% interest in all its properties (137,000 hectares) in Québec. O3 Mining trades on the TSX Venture Exchange (TSX.V: OIII) and on OTC Markets (OTCQX: OIIIF). The company is focused on delivering superior returns to its shareholders and long-term benefits to its stakeholders.

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O3 Mining (OIII) - Fundamentally, the Next Mid-Tier Val-d'Or Gold Mine

esse quero encerrando simplificando oiii

Play Episode Listen Later Oct 24, 2021 25:11

O3 Mining Inc is a Canada-based gold exploration company. The Company operates as a mine development and consolidator of exploration properties in gold camps in Canada. The Company holds a 100% interest in a number of properties in Quebec (137,000 hectares). The Company controls 61,000 hectares in Val D'Or and over 50 kilometers of strike length of the Cadillac-Larder Lake Faut. The Company also has a portfolio of assets in the James Bay and Chibougamau regions of Quebec. The Company's operated projects are Gwillim Property, The Cadillac Break Properties, Malartic Property and Alpha Property. The Cadillac Break Properties are located in the southeastern Abitibi Greenstone Belt of the Archean Superior Province in the Canadian Shield. The Gwillim property is located in the Barlow township, close to Chibougamau, consisting of 38 mining claims, covering 1715 hectares. It also owns the Denain-Pershing gold bearing property that covers approximately 10,001 hectares.

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#194- ENCERRANDO O COMPLICANDO

NA NOSSA VIDA

Play Episode Listen Later Aug 31, 2021 11:04

Oiii gente, tudo bom? Esse é o último episódio do nosso mês especial, com episódios todos os dias aqui no podcast. Quero muito agradecer por terem ouvido, compartilhado nosso conteúdo e espero que vocês tenham gostado do Complicando o Simplificando

Tutorial+dicas

Fidget Toys By Lu

Play Episode Listen Later Jul 18, 2021 2:05

Oiii hoje eu vou fazer um tutorial de como eu arrumo minha mala e também irei dar algumas dicas.

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O3 Mining (OIII) - 250,000m Resource Expansion Drilling Funded

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Play Episode Listen Later Jun 27, 2021 35:34

O3 Mining Inc., an Osisko Group company, and is a gold explorer and mine developer ready to produce from its highly prospective gold camps in Québec, Canada. O3 Mining benefits from the support, previous mine-building success and expertise of the Osisko team as it grows towards being a gold producer with several multi-million ounce deposits in Québec.The company has 2 very important projects in Quebec, Marban and Alpha. There is over 3.9Moz at the Val D'Or property, one of the best mining areas in the world. O3 is currently moving the Marban project towards production in 2026 and there is a lot of exploration potential which could increase the amount of resources for the company and increase the value for shareholders.O3 is well funded and the company is being very systematic with the development of the Marben resource. Now that they have reached a 2.5Moz resource at Marban, they are focused on moving ahead towards production. They plan to invest $256M in capex, they have completed the PEA and are in the process of working towards the PFS now and then onto the Feasibility Study for the project.As Marban moves towards production, O3 will continue to drill to continue to improve and modify the engineering of the project and this will increase the size and value of the resource. O3 has a systematic approach to looking for further discoveries and is drilling on the western side of Marban and also in 4 different areas at Alpha. They hope to execute the project at Marban to produce cash flow and at the same time add to the resource at Alpha with potentially a much bigger discovery in the future. O3 Mining owns a 100% interest in all its properties (137,000 hectares) in Québec. O3 Mining trades on the TSX Venture Exchange (TSX.V: OIII) and on OTC Markets (OTCQX: OIIIF). The company is focused on delivering superior returns to its shareholders and long-term benefits to its stakeholders.

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One Piece Eps 211-214

One Piece With A Lime

Play Episode Listen Later May 20, 2021 49:20

The fellas talk about Luffy's skating abilities and Nami's meta gaming tactics. @PandaSightings PandaSightings@gmail.com for questions Intro song was "Oiii!" from the Cursed Sword OstThank you for showing up to our annual hotdog eating contest.Spongebob memes will forever be humanity's greatest creation~

Viajany – #33 Do trem da morte para a Alemanha, com Edson Amorina Junior

Play Episode Listen Later May 16, 2021

Finalmente, voltei. (Eu juro que não abandonei vocês, inclusive, em breve teremos novidades) Oiii, viajaners! Neste episódio eu trouxe para … Mais

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#19 - O jogo da discórdia mais necessário

Play Episode Listen Later Apr 6, 2021 6:12

Oiii amigos, o jogo da discórdia foi tudo, mais uma vez admiro a coragem do João em escancarar o racismo que ele sofreu levantando essa pauta super importante! --- Support this podcast: https://anchor.fm/nada-de-metades/support

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#08 - Acabou segunda temporada de Soltos em Floripa2

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Play Episode Listen Later Mar 26, 2021 7:57

Oiii gentem!!!E chega ao fim a segunda temporada de Soltos em Floripa, chegamos aqui até aqui com uma jornada divertida e perceptível a evolução dos solteiros! Nos vemos na próxima!!! --- Support this podcast: https://anchor.fm/nada-de-metades/support

OTC: Saint Paddy's Day Special!!!

Toxic Male Tendencies

Play Episode Listen Later Mar 17, 2021 77:22

Oiii!!! coom un down 'nd 'ave a coople pints laddie!!! 'ave aa coople laughs!!! Mad Mac, Professor Satan, and special guest Zackajawea sit down and talk about a bunch of shite while celebrating Saint Patrick's Day. ******DO NOT TAKE WHAT WE SAY TO HEART THEY ARE JOKES!!!******* NOW ENJOY THE SHOW!!!! --- Support this podcast: https://podcasters.spotify.com/pod/show/outsidethecircle23/support

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#02 - A experiência de viver um voluntáriado com convidados especiais!

Play Episode Listen Later Mar 17, 2021 9:12

Oiii amigos, no episódio de hoje eu trago convidados muito mais que especiais que eu conheci no meu primeiro voluntáriado no Recanto de Ode, falamos sobre essa experiência e vivência única!! Thank you girls to do this with me, and Lucas valeu pela força e alegria de sempre!!! Always in my heart ❤ --- Support this podcast: https://anchor.fm/nada-de-metades/support

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Uma canção surpresa

Patinando Por Aí

Play Episode Listen Later Mar 16, 2021 4:08

Oiii aqui é Dudinha, sou amiguinha da Aline... E eu vim aqui para cantar pra vocês

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O3 Mining (OIII) - Osisko Spinout Raises $75M for Val D'Or Targets

Play Episode Listen Later Mar 12, 2021 26:01

Interview with Jose Vizquerra, President & CEO of O3 Mining (TSX-V:OIII)

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#13 - João lider, plot atrás de plot e Arthur cadelinha do Projota

Play Episode Listen Later Feb 25, 2021 5:43

Oiii amigos e não é que esse BBB tá sendo Plot Twist atrás de Plot Twist. No episódio de hoje eu falo um pouco do que achávamos na primeira semana e como tudo mudou, liderança de João e um dos melhores memes do BBB21 até agora! --- Support this podcast: https://anchor.fm/nada-de-metades/support

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Viajany – #32 Let’s Go To Mount Pektu, com Renata Motta

Play Episode Listen Later Feb 7, 2021

Oiii, viajaners! No episódio de hoje eu trouxe a produtora de TV Renata Motta para contar suas experiências incríveis com … Mais

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Viajany – #31 Garota eu vou pra Califórnia – descendo a Highway 1, com Juliana Munaro

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Play Episode Listen Later Jan 5, 2021

Oiii, viajaners! Hoje eu estou super bem acompanhada pela talentosíssima Juliana Munaro. Essa jornalista maravilhosa me deu a honra de … Mais

Viajany – #30 O paraíso do mundo é aqui, com Ira Croft