Cosmography archives
Large-scale density inhomogeneities in the Universe
by Martin Rees and Dennis Sciama (1968)
https://www.nature.com/articles/217511a0
#quasars
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NASA’s Chandra Sees Surprisingly Strong Black Hole Jet at Cosmic “Noon” https://www.nasa.gov/image-article/nasas-chandra-sees-surprisingly-strong-black-hole-jet-at-cosmic-noon/ #NASA #Astrophysics #BlackHoles #ChandraXRayObservatory #GalaxiesStarsBlackHoles #MarshallAstrophysics #MarshallSpaceFlightCenter #Quasars #SupermassiveBlackHoles #TheUniverse
NASANASA's Chandra Sees Surprisingly Strong Black Hole Jet at Cosmic "Noon" - NASAA black hole has blasted out a surprisingly powerful jet in the distant universe, according to a new study from NASA’s Chandra X-ray Observatory and discussed
Hubble Reveals Surprising Spiral Shape of Galaxy Hosting Young Jet https://science.nasa.gov/missions/hubble/hubble-reveals-surprising-spiral-shape-of-galaxy-hosting-young-jet/ #NASA #ActiveGalaxies #Astrophysics #AstrophysicsDivision #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Quasars
science.nasa.govHubble Reveals Surprising Spiral Shape of Galaxy Hosting Young Jet - NASA ScienceThe night sky has always played a crucial role in navigation, from early ocean crossings to modern GPS. Besides stars, the United States Navy uses quasars as beacons. Quasars are distant galaxies with supermassive black holes, surrounded by brilliantly hot disks of swirling gas that can blast off jets of material. Following up on the groundbreaking 2020 discovery of […]
NASA’s Hubble Takes the Closest-Ever Look at a Quasar https://science.nasa.gov/missions/hubble/nasas-hubble-takes-the-closest-ever-look-at-a-quasar/ #NASA #Astrophysics #AstrophysicsDivision #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Quasars
science.nasa.govNASA's Hubble Takes the Closest-Ever Look at a Quasar - NASA ScienceAstronomers have used the unique capabilities of NASA’s Hubble Space Telescope to peer closer than ever into the throat of an energetic monster black hole powering a quasar. A quasar is a galactic center that glows brightly as the black hole consumes material in its immediate surroundings. The new Hubble views of the environment around […]
Israel agrees to pauses – but doesn’t want a ceasefire: Political analyst - YouTube
https://www.youtube.com/watch?v=uVgYWlgfisk
JWST Finds a Mature Quasar In the Early Universe, But Something Doesn't Add Up - YouTube
https://www.youtube.com/watch?v=OTSHdNKKUrY
For The First Time, Two Colossal Black Holes Seen Colliding in The Cosmic Dawn
https://www.sciencealert.com/for-the-first-time-two-colossal-black-holes-seen-colliding-in-the-cosmic-dawn #astronomy #BlackHoles #collision #quasars #BigBang
ScienceAlert · For The First Time, Two Colossal Black Holes Seen Colliding in The Cosmic DawnWe've just seen concrete confirmation that galaxies could collide and grow in the early Universe.
Dark energy might not be constant after all - Enlarge / The Dark Energy Spectroscopic Instrument (DESI) has made the ... - https://arstechnica.com/?p=2013826 #darkenergyspectroscopicinstrument #baryonicacousticoscillations #astrophysics #darkenergy #astronomy #cosmology #lambdacdm #science #physics #quasars #desi
Ars Technica · Dark energy might not be constant after allFirst results from the Dark Energy Spectroscopic Instrument offer hints of new physics.
NASA’s Chandra Identifies an Underachieving Black Hole https://www.nasa.gov/image-article/nasas-chandra-identifies-an-underachieving-black-hole/ #NASA #BlackHoles #ChandraXRayObservatory #GalaxiesStarsBlackHoles #GalaxiesStarsBlackHolesResearch #MarshallSpaceFlightCenter #Quasars #SupermassiveBlackHoles #TheUniverse
NASANASA's Chandra Identifies an Underachieving Black Hole - NASAThis image shows a quasar, a rapidly growing supermassive black hole, which is not achieving what astronomers would expect from it, as reported in
The black holes powering #quasars collect matter from their surroundings in a process so energetic that it emits vast amounts of light. So much so that quasars are some of the brightest objects in our sky, meaning even distant ones are visible from Earth.
#Astronomy #SpaceScience #BlackHoles #sflorg
https://www.sflorg.com/2024/02/astr02192401.html
www.sflorg.comAstronomers identify record-breaking quasarastronomers have characterised a bright quasar, finding it to be not only the brightest of its kind, but also the most luminous
Like a #celestial beacon, distant #quasars make the brightest light in the #universe. They emit more light than our entire Milky Way #galaxy. The light comes from matter ripped apart as it is swallowed by a supermassive black hole. #Quasar light reveals clues about the large-scale structure of the universe
#Astronomy #SpaceScience #ComputerScience #sflorg
https://www.sflorg.com/2023/12/astr12202301.html
www.sflorg.comCosmic lights in the forestWe’ve created a new simulation model to compare data that exists at the real universe
Quasars Have Always Had Dark Matter Halos
Almost every galaxy ever examined seems to contain a supermassive black hole, and when they're actively feeding on material, they're known as quasars. Astronomers are still working out the connection between quasars and the giant halos of dark matter surrounding their host galaxies. A research team has searched for quasars, seen 13 billion years ago, and the surrounding dark matter halo is always there. These observations could help astronomers understand how supermassive black holes and their host galaxies formed.
Some Galaxies Contain Double Supermassive Black Holes
Astronomers have discovered supermassive black holes at the hearts of most galaxies, but it appears that some of these are binaries. The discovery was made by observing the jets from blazars, actively feeding supermassive black holes that beam directly toward Earth. Some of these jets have been found to wobble slightly, puzzling astronomers. New evidence shows that this wobble, or precession, comes from a binary companion to these supermassive black holes.
How Did Supermassive Black Holes Grow So Quickly, So Early?
Supermassive black holes are a mystery. These monster black holes with millions or even billions of times the mass of the Sun were already present in the first billion years of the age of the Universe. How did they get enough raw material to grow so quickly? A new study suggests that it all comes down to the giant molecular clouds in galaxies that get funneled into the centers of galaxies during mergers, feeding the hungry black holes. The simulations predict they can grow from millions to billions of solar masses within a few hundred million years.
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What is a #Quasar?
• https://www.space.com/17262-quasar-definition.html
• https://en.m.wikipedia.org/wiki/Quasar
Photo (ESO): Artist’s impression of ULAS J1120+0641 (more information: https://www.eso.org/public/images/eso1122a/).
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#SpaceFactSunday: Did you know that quasars can outshine an entire galaxy? 
These luminous beasts unleash energy from supermassive black holes at their cores, making them the ultimate cosmic light show. It's like a celestial fireworks display on steroids!
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Nature astro covers appreciation post
Evolution of the Universe (2005)
Galaxy interactions are the dominant trigger for local type 2 #quasars: https://academic.oup.com/mnras/article/522/2/1736/7035603 -> Astronomers solve the 60-year mystery of quasars – the most powerful objects in the Universe: https://www.sheffield.ac.uk/news/astronomers-solve-60-year-mystery-quasars-most-powerful-objects-universe - scientists have unlocked one of the biggest mysteries of quasars, the brightest, most powerful objects in the Universe, by discovering that they are ignited by galaxies colliding.
"Hubble Sees Two Quasars Side by Side in the Early Universe
(...)On April 5th, researchers announced the discovery of a rare double quasar in the early Universe. The two quasars are gravitationally bound, spiraling in towards each other. Their host galaxies are in the process of merging, and the supermassive black holes generating the quasars will also eventually collide and merge."
#Hubble #quasars #doublequasar #astronomy #space #science
: https://www.universetoday.com/160869/hubble-sees-two-quasars-side-by-side-in-the-early-universe/
Universe TodayHubble Sees Two Quasars Side by Side in the Early UniverseWhen it comes to the brightest, most powerful objects in the Universe, not much can beat a Quasar. A Gamma Ray Burst from a supernova might be more energetic, but doesn’t last very long. Quasars, by comparison, can churn out 1000 times the radiation of the Milky Way, and keep doing it for hundreds of … Continue reading "Hubble Sees Two Quasars Side by Side in the Early Universe"