News tagged with white dwarfs

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Possible bright supernova lights up spiral galaxy M61

I sat straight up in my seat when I learned of the discovery of a possible new supernova in the bright Virgo galaxy M61. Since bright usually means close, this newly exploding star may soon become visible in smaller telescopes. ...

dateOct 31, 2014 in Astronomy
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White dwarfs hide information on dark forces

Researchers from Europe and the USA have ruled out a multitude of possible parameters for dark photons - a type of dark matter and energy - with the help of white dwarfs. In some aspects, the shining of these dying stars ...

dateNov 05, 2013 in Astronomy
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Chandra Reveals Origin of Key Cosmic Explosions

(PhysOrg.com) -- New findings from NASA's Chandra X-ray Observatory have provided a major advance in understanding a type of supernova critical for studying the dark energy that astronomers think pervades the universe. The ...

dateFeb 17, 2010 in Astronomy
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Ticking stellar time bomb identified (w/ Video)

(PhysOrg.com) -- "One of the major problems in modern astrophysics is the fact that we still do not know exactly what kinds of stellar system explode as a Type Ia supernova," says Patrick Woudt, from the University of Cape ...

dateNov 17, 2009 in Astronomy
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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 as faint, pale blue ...

dateApr 27, 2009 in Astronomy
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Hubble sees the remains of a star gone supernova

(Phys.org) —These delicate wisps of gas make up an object known as SNR B0519-69.0, or SNR 0519 for short. The thin, blood-red shells are actually the remnants from when an unstable progenitor star exploded violently as ...

dateMay 03, 2013 in Astronomy
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