'Backward' black holes spew super-powerful jets

 作者:盛驷     |      日期:2019-03-08 07:17:01
“BACKWARDS” black holes may kick out stronger jets of matter than their standard counterparts. As black holes eat material, they spew some of it out as jets. But no one knows why some jets are more powerful than others. A team led by Daniel Evans of the Massachusetts Institute of Technology studied the region around a black hole called 3C 33, which spins in the opposite direction to its orbiting disc of dust and gas. It has particularly powerful jets, perhaps because its inner disc is empty,