jan 202013
 
The Power of Messier 82's Superwinds

  An international team of astronomers, led by Dr. Kazuya Matsubayshi (Kyoto University), has discovered that outflows of gas from starburst galaxy Messier 82 (see below) collide with a “cap” of gas clouds 40,000 light-years away from the galactic disk. Shockwaves (Note 1) from M82’s central starburst region are the most likely source of the [continue reading]

mei 122012
 
The Mystery of Superwinds Solved

  Astronomers at The University of Manchester believe they have found the answer to the mystery of a powerful ‘superwind’ which causes the death of stars. Artist’s impression of the dusty wind blown by a red giant star. Credit: Anna Mayall/University of Manchester. Writing in Nature, the team of researchers used new techniques which allowed [continue reading]

apr 122012
 
Astronomers witness death of stars - in a 'solar sandstorm'

Sand storms in space have been discovered by astronomers watching the death-throes of giant stars. Three ‘red giants’ were observed having their atmospheres ripped away by a ‘superwind’ containing dusty grains of silica.  Astronomers have discovered sandstorms in space after using state-of-the-art techniques to search the atmospheres of distant, dying stars.  Superwinds carrying the dust that [continue reading]