News tagged with dwarf stars
Two Earth-sized bodies with oxygen rich atmospheres found -- but they're stars not planets
(PhysOrg.com) -- Astrophysicists at the University of Warwick and Kiel University have discovered two earth sized bodies with oxygen rich atmospheres - however there is a bit of a disappointing snag for anyone ...
Nov 12, 2009 |
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New type of supernova explosion reported; predicted by theoretical physicists at UCSB
A new class of supernova was discovered by scientists at Berkeley and may be the first example of a new type of exploding star. A team of astrophysicists at UC Santa Barbara had predicted this kind of explosion in their t ...
Nov 05, 2009 |
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Rapid supernova could be new class of exploding star
(PhysOrg.com) -- An unusual supernova rediscovered in seven-year-old data may be the first example of a new type of exploding star, possibly from a binary star system where helium flows from one white dwarf ...
Nov 05, 2009 |
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The Ring Nebula
The diversity of colours, shapes, and sizes of planetary nebulae make them fascinating objects. In this photo release Calar Alto presents a rather unique view combining both optical and near-infrared data ...
Nov 02, 2009 |
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The Milky Way's tiny but tough galactic neighbor
In the new ESO image, Barnard's Galaxy glows beneath a sea of foreground stars in the direction of the constellation of Sagittarius (the Archer). At the relatively close distance of about 1.6 million light-years, ...
Oct 14, 2009 |
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Computer code gives astrophysicists first full simulation of star's final hours
The precise conditions inside a white dwarf star in the hours leading up to its explosive end as a Type Ia supernova are one of the mysteries confronting astrophysicists studying these massive stellar explosions. But now, ...
Sep 22, 2009 |
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In Search of Dark Asteroids (and Other Sneaky Things)
Ninjas knew how to be stealthy: Be dark. Emit very little light. Move in the shadows between bright places.
Sep 16, 2009 |
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XMM-Newton uncovers a celestial Rosetta stone
(PhysOrg.com) -- ESA's XMM-Newton orbiting X-ray telescope has uncovered a celestial Rosetta stone: the first close-up of a white dwarf star, circling a companion star, that could explode into a particular ...
Sep 03, 2009 |
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Supernova remnant is an unusual suspect
A new image from NASA's Chandra X-ray Observatory shows a supernova remnant with a different look. This object, known as SNR 0104-72.3 (SNR 0104 for short), is in the Small Magellanic Cloud, a small neighboring ...
Jun 09, 2009 |
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Queen's astronomers propose new supernova interpretation
In a controversial new paper in the journal Nature, astronomers from Queen's University Belfast have proposed a new physical interpretation of a supernova discovered on 7th November 2008.
Jun 09, 2009 |
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World's observatories watching 'cool' star
The Whole Earth Telescope (WET), a worldwide network of observatories coordinated by the University of Delaware, is synchronizing its lenses to provide round-the-clock coverage of a cooling star. As the star ...
May 15, 2009 |
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Galactic X-ray emissions originate from stars
(PhysOrg.com) -- A 25-year old astronomical mystery has been solved: Most of the diffuse X-ray emissions in the Milky Way do not originate from one single source but from so-called white dwarfs and from stars ...
May 05, 2009 |
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Starbursts in Dwarf Galaxies are a Global Affair
(PhysOrg.com) -- Bursts of star making in a galaxy have been compared to a Fourth of July fireworks display: They occur at a fast and furious pace, lighting up a region for a short time before winking out.
Apr 30, 2009 |
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Oddball stars discovered in new Hubble images
(PhysOrg.com) -- Professor Adrienne Cool has discovered 24 unusual stars in an ancient star cluster in the Milky Way. Made of helium rather than the usual carbon and oxygen, these white dwarf stars appear ...
Apr 27, 2009 |
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Largest collection of anomalous white dwarfs observed by Hubble
Twenty-four unusual stars, 18 of them newly discovered, have been observed in new Hubble telescope images. The stars are white dwarfs, a common type of dead star, but they are odd because they are made of ...
Apr 23, 2009 |
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