News tagged with white dwarf star

Related topics:

Supernovae mystery solved

(PhysOrg.com) -- Supernovae are gigantic stellar explosions that can be seen across the entire universe. Type Ia supernovae are a relatively homogeneous class of stellar explosions, which researchers use as 'standard candles' ...

dateJun 30, 2010 in General Physics
shares0 comments 6

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 kind of supernova ...

dateSep 03, 2009 in Astronomy
shares0 comments 7

The remarkable remains of a recent supernova

(Phys.org) —Astronomers estimate that a star explodes as a supernova in our Galaxy, on average, about twice per century. In 2008, a team of scientists announced they discovered the remains of a supernova that is the most ...

dateJun 26, 2013 in Astronomy
shares0 comments 2

Star in closest orbit ever seen around black hole

Astronomers have found evidence of a star that whips around a likely black hole twice an hour. This could be the tightest orbital dance ever seen by a black hole and a companion star in our own Milky Way galaxy.

dateMar 13, 2017 in Astronomy
shares100 comments 1

A one-of-a-kind star found to change over decades

Astronomers studying the unique binary star system AR Scorpii have discovered the brightness of the system has changed over the past decade. The new evidence lends support to an existing theory of how the unusual star emits ...

dateSep 12, 2017 in Astronomy
shares296 comments 10