NEW RESEARCH ON BLACK HOLE

[alokmohan]

upermassive black holes can produce powerful winds that shape a galaxy and determine their own growth, confirms a group of scientists from Rochester Institute of Technology. <br /><br />The RIT team has, for the first time, observed the vertical launch of rotating winds from glowing disks of gas, known as accretion disks, surrounding supermassive black holes in the centers of galaxies. <br /><br />Gas flowing into a supermassive black hole first accumulates in a rapidly spinning accretion disk, which forms the engine of a quasar, a type of active galactic nucleus found in some galaxies and an extremely powerful source of radiation. <br /><br />"Gas flowing in from the galaxy 'fuels' the quasar," said Andrew Robinson, associate professor of physics at RIT and co-author of the study. "Gas flowing out from the quasar regulates black hole growth and galaxy formation." <br /><br />The RIT team, from the University of Hertfordshire in England, studied the winds of gas coming off the quasar PG 1700+518, located in a galaxy at a distance of approximately 3 billion light-years from Earth.<br />http://www.astronomy.com/asy/default.aspx?c=a&id=6177