News tagged with white dwarfs

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Giant Planet Set for a Cataclysmic Show

(PhysOrg.com) -- A team of Chinese astronomers have discovered a giant planet close to the exotic binary star system QS Virginis. Although dormant now, in the future the two stars will one day erupt in a violent ...

Dec 16, 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
4.3 / 5 (22) 14

Into the eye of the helix

(PhysOrg.com) -- The Helix Nebula, NGC 7293, lies about 700 light-years away in the constellation of Aquarius (the Water Bearer). It is one of the closest and most spectacular examples of a planetary nebula.

Feb 25, 2009
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Dead Stars Tell Story of Planet Birth

(PhysOrg.com) -- Astronomers have turned to an unexpected place to study the evolution of planets -- dead stars. Observations made with NASA's Spitzer Space Telescope reveal six dead "white dwarf" stars littered ...

Jan 05, 2009
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How do you jumpstart a dead star?

It's a staple of science fiction, restarting our dying star with some kind of atomic superbomb. Why is our sun running out of fuel, and what can we actually do to get it restarted?

Mar 14, 2014
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Hubble monitors supernova in nearby galaxy M82

This is a Hubble Space Telescope composite image of a supernova explosion designated SN 2014J in the galaxy M82. At a distance of approximately 11.5 million light-years from Earth it is the closest supernova ...

Feb 26, 2014
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Capturing a fleeting starburst

On 11 November 2011, astronomers witnessed a distant star erupt in an incredibly powerful explosion. An international research team including Mikio Morii and colleagues from the MAXI Team at the RIKEN Global ...

Jan 31, 2014
4.8 / 5 (9) 3

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 ...

Nov 05, 2013
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Bright nova in the constellation of Delphinus

A bright nova has recently been discovered in the constellation of Delphinus (The Dolphin). The discoverer was Koichi Itagaki, in Japan who used an 18 cm reflecting telescope with a CCD camera. The nova was ...

Aug 23, 2013
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