The Milky Way galaxy has a clumpy halo
The Milky Way galaxy is in the recycling business.
Astronomy
Oct 19, 2020
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Page 3 - News tagged with matter halos
Dark matter less influential in galaxies in early universe
New observations indicate that massive, star-forming galaxies during the peak epoch of galaxy formation, 10 billion years ago, were dominated by baryonic or 'normal' matter. This is in stark contrast to present-day galaxies, ...
Astronomy
Mar 15, 2017
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Astronomers detect extended dark matter halo around ancient dwarf galaxy
The Milky Way is surrounded by dozens of dwarf galaxies that are thought to be relics of the very first galaxies in the universe. Among the most primitive of these galactic fossils is Tucana II—an ultrafaint dwarf galaxy ...
Astronomy
Feb 1, 2021
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A radically new view on dwarf galaxies surrounding the Milky Way
Commonly thought to be long-lived satellites of our galaxy, a new study now finds indications that most dwarf galaxies might, in fact, be destroyed soon after their entry into the Galactic halo.
Astronomy
Nov 21, 2023
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Physicists explain mysterious dark matter deficiency in galaxy pair
A new theory about the nature of dark matter helps explain why a pair of galaxies about 65 million light-years from Earth contains very little of the mysterious matter, according to a study led by a physicist at the University ...
General Physics
Sep 9, 2020
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Did 'Dark Gulping' Generate Black Holes in Early Universe?
(PhysOrg.com) -- A process called ‘dark gulping’ may solve the mystery of the how supermassive black holes were able to form when the Universe was less than a billion years old.
Astronomy
Apr 23, 2009
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Small-scale challenges to the cold dark matter model
(Phys.org)—A collaborative of researchers from several U.S. universities has published a new paper that explains the major contradictions presented by the prevailing cold dark matter (CDM) cosmological model, and proposes ...
Distant galaxies and the true nature of dark matter
At the center of spiral galaxies—those near to us but also those billions of light-years away—there is a vast spherical region made up of dark matter particles. This region has two defining characteristics: a density ...
Astronomy
Feb 11, 2022
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2444
Distant quasar illuminates a filament of the cosmic web
Astronomers have discovered a distant quasar illuminating a vast nebula of diffuse gas, revealing for the first time part of the network of filaments thought to connect galaxies in a cosmic web. Researchers at the University ...
Astronomy
Jan 19, 2014
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Simulated galaxies provide fresh evidence of dark matter
Further evidence of the existence of dark matter – the mysterious substance that is believed to hold the Universe together – has been produced by Cosmologists at Durham University.
Astronomy
Apr 21, 2017
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