Chandra & XMM-Newton Provide Direct Measurement of Distant Black Hole's Spin
Submitted by chandra on Wed, 2014-03-05 11:44Multiple images of a distant quasar are visible in this combined view from NASA's Chandra X-ray Observatory and the Hubble Space Telescope. The Chandra data, along with data from ESA's XMM-Newton, were used to directly measure the spin of the supermassive black hole powering this quasar. This is the most distant black hole where such a measurement has been made, as reported in our press release.