Tuesday, September 5, 2017

Black hole 100,000 times bigger than sun discovered near center of Milky Way

Black hole 100,000 times bigger than sun discovered near center of Milky Way
A new kind of black hole has been found at the centre of the Milky Way – a find that may help explain the evolution of the phenomena. 
 
In research conducted by Japanese astronomers using the ALMA Observatory in northern Chile, a black hole 100,000 times the size of our sun was found within a molecular gas cloud. Its relatively small size means that it is the first to be identified as an intermediate-mass black hole (IMBH).

Professor Tomoharu Oka of Japan’s Keio University believes that black holes with masses greater than a million solar masses are at the centre of all galaxies and are essential to their growth. The origins of supermassive black hole, however, remain a mystery.

"One possible scenario is IMBHs – which are formed by the runaway coalescence of stars in young compact star clusters – merge at the centre of a galaxy to form a supermassive black hole,” said Prof Oka.

Using the ALMA telescope, the team observed the cloud more than 195 light years from the centre of the Milky Way. In findings published in the journal Nature Astronomy, Prof Oka then used computer simulations to show the high speed motion of the gas cloud, which the team concluded was a sign that it is surrounding a black hole. 


Continue Reading......  https://www.rt.com/news/402012-new-black-hole-milky-way/