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]

Jan 192013
 
"Cosmic fog" of the Nearby Universe measured

  Researchers from the Laboratoire Leprince-Ringuet (CNRS/École Polytechnique) have carried out the first measurement of the intensity of the diffuse extragalactic background light (EBL) in the nearby Universe, a fog of photons that has filled the Universe ever since its formation. Using some of the brightest gamma-ray sources in the southern hemisphere, the study was [continue reading]