okt 252012
 
A Mini-Supermassive Black Hole in a Bulgeless Spiral Galaxy

  One of the lowest mass supermassive black holes ever observed in the middle of a galaxy has been identified, thanks to NASA’s Chandra X-ray Observatory and several other observatories. The host galaxy is of a type not expected to harbor supermassive black holes, suggesting that this black hole, while related to its supermassive cousins, [continue reading]