News tagged with dwarf spheroidals
Invisible matters: How dwarf galaxies may lose their light
(PhysOrg.com) -- A new study seeking to answer the question of why some galaxies are extremely dark compared with others may eventually help to explain the formation of all galaxies, according to researchers ...
Oct 02, 2009 |
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Cosmic Dance Helps Galaxies Lose Weight
(PhysOrg.com) -- A study published this week in the journal Nature offers an explanation for the origin of dwarf spheroidal galaxies. The research may settle an outstanding puzzle in unders ...
Jul 29, 2009 |
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Search results for dwarf spheroidals
Fermi observations of dwarf galaxies provide new insights on dark matter
(PhysOrg.com) -- There's more to the cosmos than meets the eye. About 80 percent of the matter in the universe is invisible to telescopes, yet its gravitational influence is manifest in the orbital speeds ...
Apr 02, 2012 |
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Astronomers discover 'emerald-cut' galaxy
(PhysOrg.com) -- An international team of astronomers has discovered a rare square galaxy with a striking resemblance to an emerald cut diamond.
Mar 19, 2012 |
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Four reasons why the quantum vacuum may explain dark matter
(PhysOrg.com) -- Earlier this year, PhysOrg reported on a new idea that suggested that gravitational charges in the quantum vacuum could provide an alternative to dark matter. The idea rests on the hypothesis that particles ...
Nov 28, 2011 |
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Andromeda dwarf galaxies help unravel the mysteries of dark matter
Yep. It’s that time of year again. Time to enjoy the Andromeda Galaxy at almost every observing opportunity. But now, rather than just look at the nearest spiral to the Milky Way and sneaking a peak at ...
Nov 08, 2011 |
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Globular clusters on a plane
Globular clusters are generally some of the oldest structures in our galaxy. Many of the most famous ones formed around the same time as our galaxy, some 13 billion years ago. However, some are distinctly ...
Sep 23, 2011 |
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Astronomer leverages supercomputers to study black holes, galaxies
An Ohio State University astronomer is working to unlock some of the mysteries surrounding the formation of vast galaxies and the evolution of massive black holes with his own large constellation of silicon ...
Oct 14, 2010 |
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Study plunges standard Theory of Cosmology into Crisis
As modern cosmologists rely more and more on the ominous “dark matter” to explain otherwise inexplicable observations, much effort has gone into the detection of this mysterious substance in the last two decades, yet no direct ...
May 05, 2009 |
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Dwarf galaxies need dark matter too
Stars in dwarf spheroidal galaxies behave in a way that suggests the galaxies are utterly dominated by dark matter, University of Michigan astronomers have found.
Oct 24, 2007 |
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Newly Discovered Olympian Galaxy Will Provide Fresh Insights into Galactic Formation
A newly discovered dwarf galaxy in our local group has been found to have formed in a region of space far from our own and is falling into our system for the first time in its history.
May 30, 2007 |
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Scientists Elucidate the Origin of the Darkest Galaxies in the Universe
Ghostly galaxies composed almost entirely of dark matter speckle the universe. Unlike normal galaxies, these extreme systems contain very few stars and are almost devoid of gas. Most of the luminous matter, ...
Feb 14, 2007 |
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List of search results for dwarf spheroidals
