#supermassive — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #supermassive, aggregated by home.social.
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A Black Hole’s Puzzling X-Ray Bursts
https://atlas.whatip.xyz/post.php?slug=a-black-holes-puzzling-x-ray-bursts
<p>In 2019, a supermassive black hole in a galaxy 300 million light-years away woke up
#supermassive #puzzling #bursts #black -
A Black Hole’s Puzzling X-Ray Bursts
https://atlas.whatip.xyz/post.php?slug=a-black-holes-puzzling-x-ray-bursts
<p>In 2019, a supermassive black hole in a galaxy 300 million light-years away woke up
#supermassive #puzzling #bursts #black -
What caused early supermassive black holes? Study points to dark matter decay
https://atlas.whatip.xyz/post.php?slug=what-caused-early-supermassive-black-holes-study-points-to-dark-matter-decay
<p>New research suggests decaying dark matter may be the "secret ingredient"
#supermassive #matter #caused #early -
What caused early supermassive black holes? Study points to dark matter decay
https://atlas.whatip.xyz/post.php?slug=what-caused-early-supermassive-black-holes-study-points-to-dark-matter-decay
<p>New research suggests decaying dark matter may be the "secret ingredient"
#supermassive #matter #caused #early -
#Cosmic first: #Supermassive #Black hole caught “turning on” in real-time : Medium
#RNA strand that can almost self-replicate may be key to #Life's origins : New Sci
This inside-out #Planetary system has #Astronomers scratching their heads : Misc
Latest #KnowledgeLinks
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The #Algorithm That Made #Google Google : Medium
#Webb #Witnesses a #Feasting #Supermassive #BlackHole in the early #Universe : ESA
Famous double-slit #Experiment holds up when stripped to its #Quantum essentials : MIT
Latest #KnowledgeLinks
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Gravitational waves produce a background hum across the whole universe |
The fabric of the universe is constantly rippling, according to astronomers who have discovered a background buzz of #gravitational #waves. These waves may be produced by #supermassive #black #holes merging across the universe, but they might also have more exotic origins, such as leftover ripples in space-time created shortly after the #big #bang.
Pinning down their true nature could tell us about how supermassive black holes grow and affect their host galaxies, or even about how the universe evolved in its first moments.
To find this mysterious hum, astronomers have been tracking rapidly rotating neutron stars called #pulsars that blast out light with extreme regularity. By looking at different pulsars across the Milky Way, astronomers can effectively use them as a galaxy-sized gravitational-wave #detector called a pulsar #timing #array.
While individual gravitational waves, which are ripples in space-time created by massive objects colliding, have been seen regularly since the first detection in 2015, the object of this search is different. Those previous gravitational waves all have a #localised origin and rise and fall hundreds of times a second, but the newly-discovered signal is more like a gravitational wave #background that would permeate the entire universe at much #lower #frequencies, similar in concept to the cosmic microwave background, which is radiation left over by the big bang and seen all over the universe today.
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From 23 Jun: X-ray “light echoes” hint at outburst from Milky Way’s central black hole - Enlarge / This is the first image of Sgr A*, the supermassive black hole at the center of ... https://arstechnica.com/science/2023/06/x-ray-light-echoes-hint-at-outburst-from-milky-ways-central-black-hole/ #astronomy #astrophysics #black-holes #science #sgr-a* #supermassive-black-holes
