Over the last couple of tenner , we have discovered many high - velocity stars , stars so fast that they can speedily exceed their nascence clump and even leave the disk of their galaxy . PG1610 + 062 is one such physical object . It left the Sagittarius spiral arm in the Milky Way with a velocity of 550 kilometre ( 342 miles ) per secondly , almost enough to escape the gravitational pulling of our wandflower .
Researchers believe the star was kicked out from its original provenance by an fundamental interaction with a mid - mass pitch-black hole ( MMBH ) , an aim bigger than a black hole form by a supernova but certainly not as braggart as Sagittarius A * , the supermassive black at the gist of the Milky Way .
As report inAstronomy & Astrophysics , using the European Space Agency ’s Gaia ballistic capsule the scientists reconstructed the area of origin of the adept and it is nowhere near the center of the galaxy . The squad was also capable to reckon the acceleration that PG1610 + 062 must have experience . This could n’t have been produced by a supernova or another a binary system giving a kick to this lead . These two facts strongly hint that a MMBH was responsible for the acceleration .
“ Now , PG1610 + 062 may provide evidence that MMBHs could indeed exist in our galaxy . The race is on to in reality find them , ” lead author Andreas Irrgang of the Friedrich - Alexander University of Erlangen - Nuremberg in Germany , suppose in astatement .
MMBHS or medium - mass fatal maw are expected to have mass between 100 and 100,000 times that of our Sun . They are giants from our human linear perspective but still a fraction of the sizing of supermassive ignominious maw . For comparison , Sagittarius A * is over 4 million solar mess and there are black hole matter zillion of times our Sun . Few of these nominee objects have been obtain but given that black holes are by definition smuggled , it has been very hard to confirm their presence with certainty .
PG1610 + 062 was also study using the Keck Observatory in Hawaii . Researchers first think that this was an sure-enough diminished star , which is pretty typical for the aureole , the spherical neighborhood around the Milky Way . The data hold instead bring out a young massive virtuoso , between four and five solar masses .
While this star is moving really tight , faster asterisk are known . Some hyper - speed star moveat almost doublethe velocity cross-file by PG1610 + 062 .
