Winds generated by black holes limit galaxy formation
FEB 23, 2015
DOI: 10.1063/PT.5.028660
BBC : Supermassive black holes generate high-velocity winds that blow outward in every direction, according to a new study published in Science. Using two telescopes—NASA’s Nustar, which detects high-energy x rays, and the European Space Agency’s XMM-Newton, which detects lower-energy x rays—Emanuele Nardini of Keel University in the UK and colleagues were able to deduce the speed, shape, and size of the winds by looking at the way iron atoms were scattered. Because the winds eject a considerable amount of material from the host galaxy, fewer stars are able to form from the material that’s left.
© 2015 American Institute of Physics
