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The closest galaxy we can see other than our own Milky Way may be inside the Milky Way. Its outer precincts have been stripped away, leaving only its core – a tight ball of 10 million stars. And a rare type of black hole appears to lurk in its middle. Omega Centauri rolls low across the south during the night. The view is better from the southern half of the country. To the eye alone, it looks like a fuzzy star. Omega Centauri is classified as a globular cluster – a family of very old stars. It’s the biggest one in the galaxy. But it probably wasn’t born in the Milky Way. Instead, it began as a separate galaxy. But it was reeled in by the Milky Way’s gravity, which also pulled away most of its stars. Only the stars in the galaxy’s core stuck together. An intermediate-mass black hole appears to inhabit the center of the cluster. Such beasties are rare. Most black holes are either no more than about a hundred times the mass of the Sun, or a few hundred thousand times the Sun’s mass or more. A study a couple of decades ago reported a possible black hole in Omega Centauri weighing 40,000 times the Sun’s mass. Later work suggested that number was too high. The most recent estimate was compiled from 20 years of observations by Hubble Space Telescope. It puts the black hole at about 8,000 times the Sun’s mass – a rare black hole in the remnant of a dead galaxy. More about mid-sized black holes tomorrow. Script by Damond Benningfield
The 365 Days of Astronomy, the daily podcast of the International Year of Astronomy 2009
Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. actualastronomy@gmail.com Episode 480: May 2 - Vesta at Opposition May 3 - Mars Moon and Beehive May 4 - First Quarter Moon - Lunar X visible on Moon. May 5 - Lunar Straight Wall Visible & Maginus Ray May 6 - Eta Aquarid Meteor Shower Peak - ZHR 50 but usually 30, though in 2013 it reached over 130! From Comet Halley. May 10/11 - Moon passes within ½ degree of Spica all night May 14/15 - Endymion sunset rays visible on Moon May 15 - Titan Shadow Transit Visible May 27 - New Moon - Omega Centauri well placed. May 31 - Venus at Greatest Elongation in morning Sky 46-degrees from Sun. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too! Every bit helps! Thank you! ------------------------------------ Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! http://cosmoquest.org/Donate This show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just click!) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu Visit us on the web at 365DaysOfAstronomy.org or email us at info@365DaysOfAstronomy.org.
Memorias: http://bit.ly/deo-memorias2Temas:Otro planeta interesanteAstronomos encuentran que las estrellas de Omega Centauri se mueven por la acción de un cúmulo de agujeros negrosARTS: entendendiendo el origen de las rápidas y energéticas ráfagas de radio en el UniversoMateriales para la vida viajan en el asteroide BennuRealizan: Adriana Araujo, German Chaparro, Juan C. Muñoz, Esteban Silva, Lauren Flor, Maryory Loaiza, Pablo Cuartas, Jorge I. Zuluaga (Instituto de Física de la Universidad de Antioquia). Dirige: Jorge I. Zuluaga, Profesor Titular del Pregrado de Astronomía, U. de A. Produce y Edita: Jhossua Giraldo, Pregrado de Astronomía U. de A.
Astronomy Daily - The Podcast: S04E02Welcome to another episode of Astronomy Daily, your source for the latest in space exploration and astronomy. I'm Anna, and today we delve into some captivating stories, from unexpected space debris in Kenya to groundbreaking black hole discoveries and the intriguing tale of Ireland's lost moon rocks.Highlights:- Mysterious Space Debris in Kenya: Residents of Mukuku Village in Kenya were taken by surprise when a massive metal object, identified as a rocket separation ring, fell from the sky. The Kenya Space Agency has secured the area and is investigating the incident under International Space Law protocols.- SpaceX's Environmental Impact Study: Vandenberg Space Force Base in California is conducting an environmental impact study in response to SpaceX's increasing launch activities. Local communities express concerns over the environmental and noise impacts of up to 100 annual launches.- Remarkable Black Hole Discoveries: 2024 unveiled extraordinary black hole findings, including the fastest growing black hole observed, a binary star system orbiting Sagittarius A, and an intermediate mass black hole in Omega Centauri. These discoveries challenge previous assumptions and expand our understanding of these cosmic giants.- NASA's Challenging Year: NASA faced significant challenges in 2024, with issues in the Boeing Starliner mission and the end of the Ingenuity helicopter's mission on Mars. Despite setbacks, these experiences offer valuable lessons for future missions.- Tribute to Mars Exploration: The Rose Parade in Pasadena featured a stunning tribute to Mars exploration, with a float showcasing a replica of NASA's Ingenuity helicopter, highlighting the intersection of space exploration and cultural heritage.- Ireland's Lost Moon Rocks: A fascinating story from Ireland reveals the journey and eventual loss of their Apollo moon rocks, with remnants still buried in a landfill. Fortunately, a second lunar sample from Apollo 17 remains preserved in the National Museum of Ireland.For more cosmic updates, visit our website at astronomydaily.io. Join our community on social media by searching for #AstroDailyPod on Facebook, X, Tumblr, YouTube, YouTubeMusic, and TikTok. Share your thoughts and connect with fellow space enthusiasts.Thank you for tuning in. This is Anna signing off. Until next time, keep looking up and stay curious about the wonders of our universe.00:00 - A metal object from a rocket launch landed in a Kenyan village on Tuesday03:17 - 2024 has been a remarkable year for black hole discoveries05:27 - NASA had several significant setbacks in 2016, but they also provided valuable lessons08:10 - A recently uncovered story from Ireland reveals the fascinating journey of their Apollo moon rocks✍️ Episode ReferencesKenya Space Agency[Kenya Space Agency](https://www.ksa.go.ke)SpaceX[SpaceX](https://www.spacex.com)Vandenberg Space Force Base[Vandenberg Space Force Base](https://www.vandenberg.spaceforce.mil)Hubble Space Telescope[Hubble Space Telescope](https://www.nasa.gov/mission_pages/hubble/main/index.html)Event Horizon Telescope[Event Horizon Telescope](https://eventhorizontelescope.org)NASA[NASA](https://www.nasa.gov)Boeing Starliner[Boeing Starliner](https://www.boeing.com/space/starliner/)Ingenuity Helicopter[NASA Ingenuity Helicopter](https://mars.nasa.gov/technology/helicopter/)Rose Parade[Rose Parade](https://tournamentofroses.com)National Museum of Ireland[National Museum of Ireland](https://www.museum.ie)Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-the-podcast--5648921/support.
Im Sternbild Zentaur leuchtet ein riesiger kugelförmiger Sternhaufen. Omega Centauri ist der Kern einer Zwerggalaxie, die von der Milchstraße geschluckt wurde. Im Zentrum befindet sich ein Schwarzes Loch, das 8.000 mal schwerer ist als unsere Sonne. Lorenzen, Dirk www.deutschlandfunk.de, Sternzeit
Everything about black holes is extreme. That includes the range of their masses – from a few times the mass of the Sun, to a few billion. But there’s not much in the middle – between about a hundred and a hundred thousand times the Sun’s mass. Those middleweights are known as intermediate-mass black holes. And they’re extremely rare – astronomers have cataloged no more than a few dozen of them. But some recent work has solidified the cases for two of them. One of the black holes is in I-R-S 13 – a star cluster that’s quite close to the supermassive black hole at the center of the galaxy. The cluster is more tightly packed than any other cluster in the Milky Way. Astronomers recently looked at stars at the cluster’s heart. The stars appear to be orbiting something small but heavy. The most likely culprit is a black hole about 30,000 times the mass of the Sun. The other black hole is in the heart of Omega Centauri – the biggest star cluster in the galaxy. Earlier studies had suggested the cluster has a black hole up to 40,000 times the Sun’s mass. Hubble Space Telescope revealed that several stars near the center of Omega Centauri move especially fast – so fast that they would be flung out of the cluster if they weren’t held in place by something especially heavy. That “anchor” appears to be a black hole more than 8,000 times the mass of the Sun – a rare intermediate-mass black hole. Script by Damond Benningfield
In Folge 115 statten wir dem Kugelsternhaufen Omega Centauri einen Besuch ab. Denn dort hat man das “Missing Link” der schwarzen Löcher entdeckt. Nämlich ein mittelschweres schwarzes Loch, das erklären könnte, wie die gigantischen schwarzen Löcher in den Zentren der Galaxien entstehen. Davor gibt es ein kleines Potpourri an Musik, Science Fiction, Kometen, schlechten Schlagzeilen, Polarlichtern, und so weiter. Evi erzählt vom Film “Gattaca” und wir diskutieren darüber, ob wir uns in Zukunft genetisch verändern müssen, wenn wir ins Weltall wollen und ob es irgendwann einen Homo Galacticus geben wird. Wenn ihr uns unterstützen wollt, könnt ihr das hier tun: https://www.paypal.com/paypalme/PodcastDasUniversum Oder hier: https://steadyhq.com/de/dasuniversum Oder hier: https://www.patreon.com/dasuniversum
There are supermassive black holes. There are stellar mass black holes. And based on the idea that galaxies evolve as they merge, there should be black holes in between -- intermediate mass black holes. However, finding these middle-of-the-road beasts has been difficult. Now, a new paper in Nature identifies the first ever mid-size sedan in a universe of compact cars and SUVs. This black hole resides in the center of the Omega Centauri star cluster, which is thought to be the core of a galaxy that merged with the Milky Way billions of years ago. Deputy Director of the Carl Sagan Center Simon Steel chats with lead author Maximilian Häberle (Max Planck Institute for Astronomy) about just what this discovery means for astrophysics and galaxy evolution. (Recorded live 5 September 2024.)
The 365 Days of Astronomy, the daily podcast of the International Year of Astronomy 2009
From August 14, 2024. Let's take a fast-paced journey thru all that's new in space and astronomy, including how Jupiter's Great Red Spot went missing, Io's Lava Lake, Titan's coastal erosion, and this week's tales from the launch pad. We also take a close look at the discovery of the first intermediate-mass black hole in the Omega Centauri globular cluster We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too! Every bit helps! Thank you! ------------------------------------ Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! http://cosmoquest.org/Donate This show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just click!) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu Visit us on the web at 365DaysOfAstronomy.org or email us at info@365DaysOfAstronomy.org.
Welcome listeners to Astronomy Daily, your go-to source for the latest news and updates in the fascinating world of space and Astronomy. I'm your host, Anna, and today we have an exciting lineup of news stories to discuss. We'll kick things off with an intriguing study that challenges our assumptions about the rarity of intelligent alien life. Then we'll shift our focus to Scotland, where a rocket engine test at the Saxavord Spaceport led to an unexpected explosion. But don't worry, no one was injured. In more uplifting news, SpaceX has successfully launched 22 Starlink satellites into orbit using a new first stage booster, marking another milestone in their mission to expand global internet coverage. Lastly, we'll delve into the mysterious Omega Centauri cluster, where recent findings dispute the existence of a mid-sized black hole, pointing instead to a horde of smaller ones. So sit back, relax, and let's explore the universe together.- **Are We Alone in the Universe? A New Take on the Drake Equation**: Astronomers David Kipping from Columbia University and Geraint Lewis from the University of Sydney have taken a fresh look at the famous Drake equation, applying probabilistic logic to provide new insights. Their study suggests that life would either be present on nearly all Earth-like exoplanets or none of them at all, visualized as a U-shaped graph. This challenges our assumptions about the rarity of intelligent alien life and keeps the hope alive for finding extraterrestrial intelligence.- **Rocket Engine Explosion at Saxavord Spaceport**: An unexpected turn of events unfolded at the Saxavord Spaceport in Scotland when a rocket engine exploded in flames during a test. The incident, which took place in the Shetland Islands, was caught on BBC footage. Thankfully, the site had been evacuated prior to the test, and no injuries were reported. Despite this setback, the spaceport remains on track to potentially become the first British site to undertake a vertical satellite launch into space.- **SpaceX Launches 22 Starlink Satellites**: SpaceX has successfully launched 22 Starlink satellites into orbit, continuing their ambitious project to expand global internet coverage. The launch took place from the Cape Canaveral Space Launch Complex in Florida, featuring a brand new Falcon 9 first stage booster. This achievement marks the 80th landing on a drone ship and the 341st booster landing to date for SpaceX, showcasing their unparalleled capability in achieving consistent, reliable results.- **Mystery of Omega Centauri's Black Hole**: A new study challenges earlier findings that suggested the presence of an intermediate-mass black hole at the center of the Omega Centauri cluster. Instead, the latest research finds no substantial evidence for such a black hole, suggesting that a swarm of smaller black holes can equally explain the motion of fast-moving stars near the cluster's center. This ongoing debate highlights the complexities of deciphering celestial phenomena and showcases the vibrant nature of astronomical research.For more Astronomy Daily, including our continually updating newsfeed, visit our website at astronomydaily.io. Follow us on social media at AstroDailyPod on Facebook, X, YouTubeMusic, and TikTok. We love engaging with our community, so be sure to drop us a message or comment on your favorite platform.For more Space and Astronomy News Podcasts, visit our HQ at www.bitesz.com.Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-the-podcast--5648921/support.Stay curious, keep looking up, and join us next time for more stellar insights and cosmic wonders. Until then, clear skies and happy stargazing.Sponsor Link:www.bitesz.com/nordpass
SpaceTime with Stuart Gary | Astronomy, Space & Science News
Join us for SpaceTime Series 27 Episode 90, where we delve into the latest cosmic events and advancements in space exploration.**Discovery of an Intermediate Mass Black Hole**: Astronomers have detected what they believe is a rare intermediate mass black hole buried deep inside the Omega Centauri globular star cluster. This discovery, based on two decades of Hubble Space Telescope observations, provides compelling new evidence for this elusive type of black hole, which acts as a missing link in black hole evolution.- **Europe's JUICE Spacecraft Flyby**: The European Space Agency's Jupiter Icy Moons Explorer (JUICE) is about to undertake a gravity-assisted flyby of the Earth and Moon. This manoeuvre will alter the spacecraft's speed and direction, setting it on a course to Jupiter. The flyby is a double world first, being both the first lunar-Earth flyby and the first double gravity assist manoeuvre.- **Portable Urine Recycling System for Spacesuits**: Inspired by the still suits in the movie Dune, scientists have developed a new portable urine collection and recycling system for spacesuits. This system could solve the hygiene and water scarcity issues faced by astronauts during long spacewalks and deep space missions.Follow our cosmic conversations on X @stuartgary, Instagram, YouTube, and Facebook. Join us as we unravel the mysteries of the universe, one episode at a time.Sponsor Offer: This episode is proudly supported by NordVPN. Secure your digital journey across the cosmos with a VPN service you can trust. Find your stellar security solution at https://www.bitesz.com/nordvpn.Listen to SpaceTime on your favourite podcast app including Apple Podcasts, Spotify, YouTube Music, or wherever you get your podcasts.Support SpaceTime:- Become a supporter of SpaceTime: https://www.bitesz.com/show/spacetime/support/www.bitesz.com00:00:00 - This is spacetime series 27, episode 90 for broadcast on 26 July 202400:00:48 - Astronomers have detected what they believe is a rare intermediate mass black hole00:07:02 - Juice spacecraft to make first gravity assist flyby of Earth and moon00:15:46 - Astronauts need to use adult diapers when undertaking a spacewalk00:18:57 - New study finds diabetes drug could improve symptoms of heart failure00:21:37 - There are fresh warnings about the dangers of the so called wellness industry00:24:21 - Long standing underinvestment in women's health worries experts00:27:16 - spacetime is available every Monday, Wednesday and Friday through various podcasting platforms
Let's take a fast-paced journey thru all that's new in space and astronomy, including how Jupiter's Great Red Spot went missing, Io's Lava Lake, Titan's coastal erosion, and this week's tales from the launch pad. We also take a close look at the discovery of the first intermediate-mass black hole in the Omega Centauri globular cluster
Noticias de Astronomía y Exploración del Espacio – Julio 16, 2024. En este programa presentamos, comentamos y explicamos dos o tres noticias astronómicas y de exploración del espacio que fueron dadas a conocer en la semana, y que nos parecieron de particular relevancia e interés. Además, Pablo Lonnie Pacheco, de “Cielos Despejados,” nos presenta sus efemérides astronómicas. Esta semana: + 0) Mecanismo de Anticitera. https://arstechnica.com/science/2024/07/antikythera-mechanisms-calendar-ring-likely-tracked-the-lunar-calendar/ https://www.sci.news/archaeology/antikythera-mechanisms-calendar-ring-13085.html https://bhi.co.uk/wp-content/uploads/2024/06/07-HJJuly24-AOTM-2.pdf + 1) Probable Hoyo Negro en Omega Centauri. https://skyandtelescope.org/astronomy-news/a-black-hole-for-omega-centauri/ https://www.sci.news/astronomy/astronomers-find-intermediate-mass-black-hole-in-milky-ways-most-massive-globular-cluster.html https://www.sciencedaily.com/releases/2024/07/240710130803.htm https://phys.org/news/2024-07-hubble-evidence-rare-black-hole.html https://arxiv.org/abs/2404.03722 + 2) Proponen nueva definición de lo que es un planeta. https://phys.org/news/2024-07-scientific-definition-planet-orbit-sun.html#google_vignette https://arxiv.org/abs/2407.07590
L'amas d'étoiles Omega Centauri contiendrait bien un trou noir de masse intermédiaire selon une étude publiée dans Nature Astronomy, grâce à un suivi minutieux de deux décennies d'images prises par le télescope spatial Hubble. Ce trou noir central aurait une masse minimale de 8200 masses solaires. Source Fast-moving stars around an intermediate-mass black hole in ω CentauriMaximilian Häberle et al.Nature volume 631, (10 july 2024)https://doi.org/10.1038/s41586-024-07511-z Illustrations Localisation de la zone investiguée dans Oméga Centauri (Maximilian Häberle et al.) Localisation des 7 étoiles hypéervéloces dans Oméga Centauri (Maximilian Häberle et al.) Maximilian Häberle
A strange eye ball world seen by Webb, did ancient astronomers see a kilonova in the sky, extreme moss that could handle Mars, and Ariane 6 flies successfully to space (mostly).
Welcome to Astronomy Daily, your go-to podcast for the latest updates and thrilling discoveries from the cosmos. I'm your host, Anna, and I'm excited to take you on a journey through some of the most fascinating stories from the universe. Whether you're commuting, relaxing, or exploring the great outdoors, let's dive into the wonders of the cosmos together. First, we'll discuss the perseverance of astronauts Butch Wilmore and SUNY Williams aboard the ISS, who remain confident in the Boeing Starliner despite recent setbacks. Next, we'll explore new insights into Mars' climatic history, suggesting the Red Planet once experienced cold and icy conditions similar to Earth's subarctic regions. We'll also delve into a study revealing that up to 60% of near-Earth objects could be dark comets, offering vital clues about how water arrived on Earth. Lastly, we'll uncover groundbreaking news from the Omega Centauri cluster, where an international team may have pinpointed an intermediate-mass black hole at its core. So sit back, relax, and enjoy today's cosmic adventure.Episode HighlightsConfidence in Boeing Starliner: Astronauts Butch Wilmore and SUNY Williams express unwavering faith in the Boeing Starliner spacecraft despite technical setbacks, as they await their return from the ISS.- Martian Icy Clues: Recent studies suggest Mars once had cold, icy conditions similar to subarctic regions on Earth, shedding new light on its potential to have supported life.- Dark Comets: Up to 60% of near-Earth objects could be dark comets, mysterious celestial bodies that might have played a key role in delivering water to Earth.- Omega Centauri's Black Hole: An international team may have identified an intermediate-mass black hole at the core of Omega Centauri, offering new insights into black hole formation and growth.Visit our website for more episodes and the latest space news.Follow us on social media by searching for AstroDailyPod on Facebook, X, and TikTok for more updates.For a great deal (50% off) from our sponsor Malwarebytes, visit www.bitesz.com/malwarebytes ....but be warned....it is a limited time offer.Until next time, keep looking up and stay curious about the universe.www.bitesz.comBecome a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-the-podcast--5648921/support.
Our home galaxy is a cosmic melting pot. While many of its stars were born in the Milky Way, many others came from outside. They were born in smaller galaxies that were captured by the Milky Way. Over time, the smaller galaxies were ripped apart, and their stars were scattered throughout the Milky Way. And one of the Sun’s close neighbors may be an example. Kapteyn’s Star is about 13 light-years away. Only about 20 other star systems are closer. The star is about a third the size and mass of the Sun. Don’t try looking for it, though — it’s only one percent of the Sun’s brightness, so you need a telescope to see it. The star’s composition and motion don’t match that of the stars that are native to the Milky Way — or at least to the Milky Way’s bright disk. Kapteyn’s Star has a lower proportion of heavier elements — an indication that it’s extremely old. And it orbits the center of the galaxy in the opposite direction from most of the stars around it. The combination suggests that Kapteyn’s Star came from the Milky Way’s halo, a vast region that surrounds the disk. In fact, there’s evidence that Kapteyn’s and a few other stars came from a giant cluster known as Omega Centauri. It’s likely that the cluster is the core of a small galaxy captured by the Milky Way long ago. The stars in the galaxy’s outer precincts were pulled away — making them new residents of our home galaxy. Script by Damond Benningfield
The biggest globular star cluster in the Milky Way Galaxy may not be a child of the Milky Way. Instead, it may be a sort of orphan — the surviving core of a smaller galaxy that was captured by the Milky Way. Omega Centauri contains perhaps 10 million stars, all packed into a dense ball about 150 light-years across. In the cluster’s middle, the stars are packed so tightly that they’re only about a tenth of a light-year apart. Compare that to our part of the galaxy, where the nearest neighbor star is more than four light-years away. The cluster appears to be about 12 billion years old — one of the older clusters in the entire galaxy. But the composition of its stars, and the way it orbits the center of the Milky Way, suggest that Omega Centauri wasn’t born here. Instead, it appears to be one of many dwarf galaxies captured by the Milky Way. Over time, the stars in the smaller galaxy’s outer regions were pulled away. So over the eons, that left only Omega Centauri’s core — a possible “orphan” adopted by the Milky Way. Omega Centauri is about 16,000 light-years away, in the constellation Centaurus, which is quite low in the south at nightfall. If you live south of about Dallas, and you have dark skies, you might just make out the cluster as a hazy patch of light about as wide as the Moon. We’ll talk about one of the possible escapees from Omega Centauri tomorrow. Script by Damond Benningfield
Muchos cúmulos globulares pueden ser observados sin dificultad por aficionados, como Omega Centauri, 47 Tucanae, Messier 13 y otros. Con el uso de binoculares o telescopios de tamaño reducido, podemos apreciar su forma esférica. A pesar de que puedan parecer iguales, cada conjunto de estrellas tiene una identidad individual. Ofrecemos algunas sugerencias y métodos para la observación. Bienvenidos. Enlaces: Web: Astrodidacta. Imágenes que ayudaran a lacomprensión de los temas tratados Correo: astrodidacta2020@gmail.com Objetos Omega centauri 47 Tucanae NGC 6752 M 13 M92 M 22 M 28 Lista de globulares Derechos de Música: Poor, But Happy po HoliznaCC0 Derechos de Imagen Messier 13 CACT
Omega Centauri ist eine kugelförmige Ansammlung von 10 Millionen Sternen. Der Haufen befindet sich innerhalb der Milchstraße - kommt aber vielleicht ganz woanders her. Woher? Das erfahrt ihr in der neuen Folge der Sternengeschichten. Wer den Podcast finanziell unterstützen möchte, kann das hier tun: Mit PayPal (https://www.paypal.me/florianfreistetter), Patreon (https://www.patreon.com/sternengeschichten) oder Steady (https://steadyhq.com/sternengeschichten)
Todos los agujeros negros parecen pertenecer a sólo dos grupos, los que son pequeños y los que son enormes. Se estima que nuestra galaxia está plagada de unos 100 millones de pequeños agujeros negros con varias veces la masa de nuestro Sol, creados a partir de estrellas que explotaron. Estos se forman a partir de las supernovas. Por otro lado, el universo todo está inundado de otro tipo de agujeros negros, que son verdaderas bestias, con millones o miles de millones de veces la masa de nuestro Sol, y que llamamos supermasivos. Estos se encuentran en los centros de muchas galaxias. Pero, aquí está lo interesante, parece que faltan ejemplares de masa intermedia. Mi nombre es Vicente Hernández y Hoy en el Cosmos les platico sobre un tipo de agujero negro que parece evadir nuestras observaciones, los llamados agujeros negros de masa intermedia. Pero, la cosa podría tener solución y tal vez esos monstruitos habitan en el corazón de unos grupos estelares llamados cúmulos globulares. Referencias Hubble hunts for intermediate-sized black hole close to home https://esahubble.org/news/heic2306/ (M4) Hubble Finds Best Evidence for Elusive Mid-Size Black Hole https://esahubble.org/news/heic2005/ (3XMM J215022.4) Black hole found in Omega Centauri https://www.esa.int/Science_Explorati... Astronomers identify likely location of medium‑sized black holes https://news.wsu.edu/press-release/20... https://arxiv.org/pdf/2209.00018.pdf Música de fondo: · Darklight - John Dyson · You Might As Well Just Do Nothing Instead - Stellardrone Apoya el proyecto Narices de Tycho: · https://naricesdetycho.org/donar/ · https://www.amazon.com.mx/hz/wishlist... Conviértete en miembro de la comunidad: / @naricesdetycho Sígueme en: · Web… https://naricesdetycho.org/ · Twitter... @naricesdetycho · Facebook... https://www.facebook.com/NaricesdeTycho · Instagram... https://www.instagram.com/naricesdetycho · Youtube... https://www.youtube.com/channel/naric... Sigue El Podcast de Hoy en el Cosmos en:
Esperimento volante a titolo di esempio, cfr. la discussione qui. «Non a caso l'ufologia in Italia è molto diffusa fra i ravers che di slancio utopico ne hanno da vendere.» «Le veglie ufofile di Jimmy erano antesignane quiete dei rave. Del resto, se sotto i pezzi di Kosmische Musik che stanno in playlist metti una cassa dritta a 220 bpm (ma già 140 va bene), il gioco è fatto, trovi l'anello mancante.»
Im Sternbild Zentaur gibt es quasi alles. Ehemalige Galaxie, gewaltige schwarze Löcher, junge Planeten und beeindruckende Sterne. Was es darüber zu erzählen gibt, erfahrt in der neuen Folge der Sternengeschichten. Wer den Podcast finanziell unterstützen möchte, kann das hier tun: Mit PayPal (https://www.paypal.me/florianfreistetter), Patreon (https://www.patreon.com/sternengeschichten) oder Steady (https://steadyhq.com/sternengeschichten)
Globular Cluster UVIT legacy Survey GlobUleS III Omega Centauri in Far-Ultraviolet by Deepthi S. Prabhu et al. on Tuesday 11 October We present the first comprehensive study of the most massive globular cluster Omega Centauri in the far-ultraviolet (FUV) extending from the center to ~ 28% of the tidal radius using the Ultraviolet Imaging Telescope aboard AstroSat. A comparison of the FUV-optical color-magnitude diagrams with available canonical models reveals that the horizontal branch (HB) stars bluer than the knee (hHBs) and the white dwarfs (WDs) are fainter in the FUV by ~ 0.5 mag than model predictions. They are also fainter than their counterparts in M13, another massive cluster. We simulated HB with at least five subpopulations, including three He-rich populations with a substantial He enrichment of Y up to 0.43 dex, to reproduce the observed FUV distribution. We find the He-rich younger subpopulations to be radially more segregated than the He-normal older ones, suggesting an in-situ enrichment from older generations. The Omega Cen hHBs span the same effective temperature range as their M13 counterparts, but some have smaller radii and lower luminosities. This may suggest that a fraction of Omega Cen hHBs are less massive than those of M13, similar to the result derived from earlier spectroscopic studies of outer extreme HB stars. The WDs in Omega Cen and M13 have similar luminosity-radius-effective temperature parameters, and 0.44 - 0.46 M$_odot$ He-core WD model tracks evolving from progenitors with Y = 0.4 dex are found to fit the majority of these. This study provides constraints on the formation models of Omega Cen based on the estimated range in age, [Fe/H] and Y (in particular), for the HB stars. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2210.05160v1
Centaurus is home to some of the night sky's great treasures, including our closest neighbor stars and the Milky Way's largest globular cluster. Yet most of us in the United States don't get to see them. They're so far south that they always stay below the horizon. Centaurus represents a centaur — a mythological creature that was half man, half horse. According to some versions of the story, he was Chiron — the wisest of all the centaurs. He tutored Hercules, Perseus, and many other young heroes in music, medicine, and other arts. But Hercules accidentally shot Chiron with a poisoned arrow. Chiron was immortal, so he suffered in agony. Zeus eventually allowed him to die — then placed him in the stars. The centaur's greatest treasure is Alpha Centauri — a system of three stars. They're the nearest stars beyond the Sun. The closest of the three is Proxima Centauri, just four and a quarter light-years away. It's too faint to see without a telescope. But the other two stars, which are a touch farther, are bright. You need to be in Hawaii or in the southern tips of Texas or Florida to see them. Centaurus also is home to Omega Centauri — a cluster of several million stars. It is bright enough to see with the eye alone. Right now, it's just above the southern horizon as night falls across the southern third of the country, and looks like a fuzzy star. We'll have more about the centaur tomorrow. Script by Damond Benningfield Today's program was made possible by Mercer Caverns, in Calaveras County in California's historic Gold Country. Support McDonald Observatory
Kapteyns Stern stammt nicht unserer Galaxie. Was er trotzdem in der Milchstraße treibt und wie er dorthin gekommen ist, ist nicht nur enorm faszinierende Astronomie sondern auch das Thema der neuen Folge der Sternengeschichten. Unterstützen könnt ihr den Podcast bei PayPal https://www.paypal.me/florianfreistetter und bei Patreon patreon.com/sternengeschichten
A tour of our favourite celestial objects in the night sky that you can see in May and June 2021 from Wairarapa, New Zealand one of the darkest places in the world, where the Milky Way stretches from one horizon to the other. A favourite this month, quasar 3C - 273 and other space oddities, Omega Centauri, Gem Cluster, Eta Carinae. Scorpius is rising and Orion is slowly disappearing. Brightest stars, when to avoid the Moon and why and what did the ancient Egyptians think of the circumpolar stars. Clear skies and enjoy
Los Cúmulos Globulares más grandes de la Vía Láctea. En este programa grabado de “Obsesión por el Cielo” Edgar y Pedro platican en general sobre los cúmulos globulares que rodean a nuestra galaxia, y en particular sobre los cúmulos globulares más grandes que orbitan la Vía Láctea. En la primera parte del programa hablamos sobre lo que son estos objetos, cuáles son sus propiedades o características, cómo se formaron, qué podemos aprender de ellos sobre la formación de la Vía Láctea, y un poco de historia sobre su descubrimiento. En la segunda parte del programa hablamos de algunos cúmulos globulares destacados como, por ejemplo: FSR 1758 (recientemente descubierto), Omega Centauri, 47 Tucanae, M13, M4, M5, M22, etc. Además de nuestra sección semanal de noticias, ofrecemos en este programa nuestra sección mensual del “historia de la astronomía y la astrofísica” en la que celebramos el vuelo al espacio de Valentina Tereshkova. Esperamos que disfruten del programa.
The biggest ball of stars in the Milky Way Galaxy creeps low across the south on June evenings. But it might not have been born in the galaxy. Instead, it may be the core of a smaller galaxy that was grabbed by the Milky Way billions of years ago. Omega Centauri is classified as a globular cluster. It’s the biggest and brightest in the galaxy. It contains about 10 million stars. They’re all packed into a ball that’s about 150 light-years in diameter. In the cluster’s core, stars may be just a tenth of a light-year apart. By comparison, the Sun’s closest neighbors are more than four light-years away. Several lines of evidence support the idea that Omega Centauri was born in another galaxy. For one thing, its orbit around the center of the Milky Way is backwards from the general flow. For another, its chemistry doesn’t quite match that of the Milky Way’s other stars. So it seems likely that the cluster was the core of a dwarf galaxy that passed close to the Milky Way. The Milky Way’s gravity grabbed the smaller galaxy and pulled it in. The stars in the galaxy’s outer regions were absorbed into the body of the Milky Way. But the core stuck together – forming a bright globular cluster. Omega Centauri is quite low in the south as night falls. From the northern third of the United States, in fact, it’s below the horizon, so it’s not visible at all. From other locations, it looks like a faint, fuzzy star – the remnant of a galaxy. Script by Damond Benningfield
En 2010, le télescope spatial Fermi-LAT a détecté une source de rayons gamma provenant du centre de l'amas globulaire Omega Centauri. Serait-ce le signe de l'annihilation de particules de matière noire, ou bien l'émission de pulsars, voire la trace d'un trou noir très massif ? La question est restée ouverte pendant de nombreuses années faute de trouver des pulsars dans cet énorme amas. Mais aujourd'hui, c'est chose faite : une équipe internationale publie la découverte de 5 pulsars millisecondes par leur signal radio, dans le cœur de Omega Centauri. Une étude publiée dans The Astrophysical Journal Letters.
In this fabulous episode we are speaking with Dr JJ Eldridge, who is a Senior Lecturer in the Department of Physics at the University of Auckland. Their general research concerns the lives and deaths of stars and particularly the effects of binary interactions on the lives of binary stars and how these change the appearance of galaxies, alter the rates of different types of supernovae and impact on gravitational wave events. Then for observers and astrophotographers Dr Ian 'Astroblog' Musgrave , in 'What's Up Doc', tells us what to look for in the morning, evening & night skies. And then Ian takes us on an astronomical tangent to talk about a 'stream' of 309 stars discovered by the Gaia spacecraft arcing out from Omega Centauri, and the tails and material shedding from Asteroid Gault, In the news: .1. LIGO Observation Run #3 started last week and has already detected a new gravitational wave event, the hunt is on for multi-wavelength counterparts. If it is, as indicated, a NS-NS event, the universe just got a whole lot more gold and platinum. .2. NASA's InSight robot detects first clear Marsquake, ushering a new scientific discipline. Martian Seismology. .3. An international team find the earliest building block of our universe, the helium hydride ion (HeH+) in the direction of the planetary nebula NGC 7027.
To follow up our prequel from last episode, we are taking an omnimover through possibly the most missed attraction at EPCOT, Horizons. But before we dream it, we discover some Disney history on this day and watch a few old Disney classic cartoons. Come along with us to Omega Centauri on this week’s What’s Dis […]
In Episode SH030 of Star Hopping… We’ll be exploring the rich Centaurus region, and we’ll use our star hopping methods to find the bright face-on barred Spiral galaxy, Messier 83, the peculiar galaxy NGC 5128, and the largest and brightest globular cluster in the sky, Omega Centauri. Intro Well we are back to locating some Read More ... The post SH030 – Find M83, NGC5128, and Omega Centauri appeared first on Star Hopping.
In this show, we review Progress, Medieval Academy, Deus, Omega Centauri, Planes, and Livestock Uprising. We also answer a pile of questions, and end the show with our top ten "one hit wonders."
In this show, we review Progress, Medieval Academy, Deus, Omega Centauri, Planes, and Livestock Uprising. We also answer a pile of questions, and end the show with our top ten "one hit wonders."
Carnegie Institution for Science, carnegiescience, Carnegie Observatories, Department of Terrestrial Magnetism, exo-planets, Kapteyn’s Star, Galactic halo, Pamela Arriagada, Paul Butler, Steve Shectman, Jeff Crane, Ian Thompson, HARPS spectrometer at the European Southern Observatory's La Silla observatory, Planet Finding Spectrometer at the Magellan/Las Campanas Observatory in Chile, HIRES spectrometer at the W.M. Keck Observatory, Guillem Anglada-Escude, super-Earth, Omega Centauri
Fakultät für Physik - Digitale Hochschulschriften der LMU - Teil 04/05
Wed, 28 Sep 2011 12:00:00 +0100 https://edoc.ub.uni-muenchen.de/13529/ https://edoc.ub.uni-muenchen.de/13529/1/Jalali_Behrang.pdf Jalali, Behrang ddc:530, ddc:500, Fakult
While the robots are away, a sad and lonely man calls in with a beautiful image of the Omega Centauri globular cluster.
While the robots are away, a sad and lonely man calls in with a beautiful image of the Omega Centauri globular cluster.
While the robots are away, a sad and lonely man calls in with a beautiful image of the Omega Centauri globular cluster.
While the robots are away, a sad and lonely man calls in with a beautiful image of the Omega Centauri globular cluster.