News tagged with dwarf galaxies

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Antlia dwarf galaxy peppers the sky with stars

(PhysOrg.com) -- The myriad faint stars that comprise the Antlia Dwarf galaxy are more than four million light-years from Earth, but this NASA/ESA Hubble Space Telescope image offers such clarity that they ...

dateMar 05, 2012 in Astronomy
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G299.2-2.9, a middle-aged supernova remnant

(PhysOrg.com) -- G299.2-2.9 is an intriguing supernova remnant found about 16,000 light years away in the Milky Way galaxy. Evidence points to G299.2-2.9 being the remains of a Type Ia supernova, where a white ...

dateOct 13, 2011 in Astronomy
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Hubble sees a vapor of stars

(Phys.org) -- Relatively few galaxies possess the sweeping, luminous spiral arms or brightly glowing center of our home galaxy the Milky Way. In fact, most of the Universe's galaxies look like small, amorphous ...

dateJul 02, 2012 in Astronomy
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Origin of thermonuclear supernova discovered

(PhysOrg.com) -- Using NASA’s Hubble Space Telescope, astronomers have solved a longstanding mystery on the type of star, or so-called progenitor, which caused a supernova seen in a nearby galaxy. The ...

dateJan 11, 2012 in Astronomy
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A beast with four tails

(PhysOrg.com) -- The Milky Way galaxy continues to devour its small neighbouring dwarf galaxies and the evidence is spread out across the sky.

dateNov 30, 2011 in Astronomy
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How white dwarfs mimic black holes

(Phys.org)—A remarkable observation by astronomers from the University of Southampton has been published in one of the world's foremost astrophysics research journals.

dateDec 17, 2012 in Astronomy
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Rogue Black Holes May Roam the Milky Way

(PhysOrg.com) -- It sounds like the plot of a sci-fi movie: rogue black holes roaming our galaxy, threatening to swallow anything that gets too close. In fact, new calculations by Ryan O'Leary and Avi Loeb ...

dateApr 29, 2009 in Astronomy
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Modified theory of dark matter

Dark matter is an aspect of the universe we still don't fully understand. We have lots of evidence pointing to its existence (as I outlined in a series of posts a while back), and the best evidence we have point ...

dateSep 12, 2014 in Astronomy
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New stars from old gas surprise astronomers

(PhysOrg.com) -- Evidence of star birth within a cloud of primordial gas has given astronomers a glimpse of a previously unknown mode of galaxy formation. The cloud, known as the Leo Ring, appears to lack ...

dateFeb 18, 2009 in Astronomy
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Studying the physics of galaxies

Assistant Professor of Astronomy Evan Kirby arrived on campus in August. Born and raised in New Orleans, Kirby earned his BS in 2004 from Stanford University; his undergraduate thesis involved trips to Pasadena ...

dateNov 03, 2014 in Astronomy
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