Unexpectedly Little Black-hole Monsters Rapidly Suck up Surrounding Matter
June 25, 2015
Researchers found evidence that ultra-luminous X-ray sources (ULXs) exhibiting strong outflows. This suggest that the black holes in these ULXs must be much smaller than expected with high rate of accretion of matters onto the black hole...
Astronomers Discover More than 800 Dark Galaxies in the Famous Coma Cluster
June 22, 2015
A group of researchers has discovered 854 "ultra dark galaxies" in the Coma Cluster by analyzing archival data from the Subaru Telescope. The initial discovery was a surprise in 2014, and the new discovery of more than 800 suggests galaxy clusters as the key environment for the evolution of these mysterious dark galaxies...