Thursday, October 4, 2012
Star cluster for the first time found a pair of black holes
M22 star cluster in our galaxy is located at a distance of 10,000 light-years from Earth. Administer to make a discovery by observing a super-large array radio telescopes located in New Mexico.
U.S. astronomers have detected about two separate black holes in the same star cluster M22, located in the constellation Sagittarius. The paper was published in the journal Nature, a summary of its results ScienceNow.
M22 star cluster in our galaxy is located at a distance of 10,000 light-years from Earth. Managed to make a discovery by observing a super-large array radio telescopes located in New Mexico. Scientists have discovered two separate radio signal coming from the star cluster, the characteristics of which resembled the radio signals from the known black holes. Either neutron stars or white dwarfs could not, according to astronomers, be the source of these signals.
The authors believe that the source of the radio signal is two separate massive black holes are located near the center of the cluster. If so, it will be the first cluster M22 star cluster in the Milky Way, which discovered black holes, and the first cluster, which found a pair of black holes. According to astronomers, this is quite unusual, because the gravitational interaction of black holes had to leave only one of them in the center of a cluster of stars.
Star clusters are called clusters of stars inside galaxies associated gravitational forces and moving together. Most star clusters in the Milky Way were formed a long time ago, so they are massive stars had to go out and turn into a black hole.
Earlier, another group of scientists were the first to measure the jet base supermassive black hole - a jet of heated substances emitted perpendicular to the accretion disk.
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