News tagged with halo
Dark Matter May be Easier to Detect than Previously Thought
(PhysOrg.com) -- The Milky Way, like many other galaxies, is thought to be embedded in massive, lumpy amounts of dark matter that release gamma rays and other emissions. Although at first these emissions seem ...
Aug 10, 2009 |
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New Limits on the Origin of Dark Matter
(PhysOrg.com) -- Determining the identity of dark matter, the mysterious stuff thought to make up the vast majority of matter in the universe, is one of the most fundamental challenges facing modern physics. Through theory ...
Jan 27, 2009 |
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11.5 billion years old: Stellar archaeology traces Milky Way's history
(Phys.org) -- Unfortunately, stars don't have birth certificates. So, astronomers have a tough time figuring out their ages. Knowing a star's age is critical for understanding how our Milky Way galaxy built ...
May 30, 2012 |
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Scientists release most accurate simulation of the universe to date
(PhysOrg.com) -- The Bolshoi supercomputer simulation, the most accurate and detailed large cosmological simulation run to date, gives physicists and astronomers a powerful new tool for understanding such ...
Sep 29, 2011 |
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Dark matter may be an illusion caused by the quantum vacuum
(PhysOrg.com) -- One of the biggest unsolved problems in astrophysics is that galaxies and galaxy clusters rotate faster than expected, given the amount of existing baryonic (normal) matter. The fast orbits ...
Aug 11, 2011 |
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Dark Matter in a Galaxy
(PhysOrg.com) -- Stars, the most familiar objects in the night sky, make up only a tiny percentage of the total amount of matter in the universe -- about 2%.
Oct 30, 2009 |
4 / 5 (22) |
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Invisible hand in invisible matter
(PhysOrg.com) -- An international team of astronomers have found an unexpected link between mysterious 'dark matter' and the visible stars and gas in galaxies that could revolutionise our current understanding ...
Oct 06, 2009 |
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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.
Apr 23, 2009 |
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Astronomers peer into the dark
(PhysOrg.com) -- Astronomers from the Scottish Universities Physics Alliance (SUPA) have produced a completely new catalogue of ~15,000 groups of galaxies that gives a new insight into dark matter, the material ...
Apr 21, 2011 |
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Cluster collisions switch on radio halos
(PhysOrg.com) -- This is a composite image of the northern part of the galaxy cluster Abell 1758, located about 3.2 billion light years from Earth, showing the effects of a collision between two smaller galaxy ...
Aug 30, 2010 |
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Dark matter is held together by 'attractors'
The universe consists of a large amount of invisible matter - dark matter. We do not know what it is, but we know that it is there and that without dark matter there would be no galaxies, and hence stars, ...
Aug 10, 2010 |
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'Galactic archaeologists' find origin of Milky Way's ancient stars
Many of the Milky Way's ancient stars are remnants of other smaller galaxies torn apart by violent galactic collisions around five billion years ago, according to researchers at Durham University.
Jun 29, 2010 |
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Physicists pin down the proton-halo state in Flourine-17
A halo nucleus has one or more nucleons that are only weakly bound to the nuclear core. Consequently, they drift far away from it, forming, in effect, a halo. These nuclei are difficult to study because their lives are both ...
May 26, 2010 |
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M81's 'Halo' Sheds Light on Galaxy Formation
(PhysOrg.com) -- Observations with Subaru Telescope's Prime Focus Camera (Suprime-Cam) have revealed an extended structure of the spiral galaxy Messier 81 (M81) that may hold a key to understanding the formation ...
Apr 13, 2010 |
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Giant galaxy Messier 87 finally sized up
The new observations reveal that Messier 87's halo of stars has been cut short, with a diameter of about a million light-years, significantly smaller than expected, despite being about three times the extent ...
May 20, 2009 |
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Halo
Halo may refer to:
For more information about Halo, read the full article at
Wikipedia.
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