News tagged with white dwarfs

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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 ...

Nov 17, 2009
4.8 / 5 (12) 0

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
4.9 / 5 (16) 7

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
4.6 / 5 (18) 3

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
4.6 / 5 (8) 2

Solar systems around dead Suns?

(PhysOrg.com) -- Using NASA’s Spitzer Space Telescope, an international team of astronomers have found that at least 1 in 100 white dwarf stars show evidence of orbiting asteroids and rocky planets, suggesting ...

Apr 20, 2009
4.6 / 5 (16) 3

Gaia discovers its first supernova

(Phys.org) —While scanning the sky to measure the positions and movements of stars in our Galaxy, Gaia has discovered its first stellar explosion in another galaxy far, far away.

Sep 12, 2014
4.5 / 5 (11) 1

Spectacular supernova's mysteries revealed

(Phys.org) —New research by a team of UK and European-based astronomers is helping to solve the mystery of what caused a spectacular supernova in a galaxy 11 million light years away, seen earlier this ...

Aug 22, 2014
4.3 / 5 (10) 3