MOSCOW, October 6 – RIA Novosti. Telescopes Chandra and XMM-Newton has helped astronomers to find the first potential “wandering” black hole in a distant galaxy in the constellation of Bootes, which “escaped” from a small neighbor of this star of the metropolis, according to a paper accepted for publication in the Astrophysical Journal.
a Black hole is a special area in space and time where gravity is so great that they cannot overcome even the objects moving at the speed of light, including light itself.
“Ordinary” black holes, unlike their supermassive cousins at the centres of distant galaxies, it is extremely difficult to find and study because of their calm disposition. Their presence we can only know by how they bend light from other stars and flashes of radio emission produced by the absorption of their clumps of matter.
the Year Olivier (Olivier Godet) from the University of Toulouse (France) and his colleagues found an extremely unusual example of a black hole, which occupies an intermediate position between “normal” black holes and their supermassive “big sisters” studying x-ray images of distant galaxies obtained with telescopes Chandra and XMM-Newton.
In one of these galaxies, GJ1417+52 in the constellation of Bootes, remote from us at 4.5 billion light years, the team of the Year found two SuperBright x-ray object. One of them is a supermassive black hole with a mass of several million Suns, at its centre, and the second source XJ1417+52 — a more compact object.
As scientists believe, based on features in the spectrum of this object and the characteristic shift of its lines, this is the brightest point in the galaxy GJ1417+52 represents the “average” black hole weighing about 10 thousand Suns, which “wanders” on the outskirts of this stellar metropolis.
the Year and his colleagues note that the discovery of this black hole”rod” was a big success for them – in the moment of watching her XJ1417+52, as scientists believe, the ripped star. After that, the hole absorbs large quantities of matter, the “chewing” part of it and emitting powerful x-ray beams. When lunch this black hole ended, its brightness decreased in 14 times and now we can’t see her with any existing telescope.
How could this black hole and why she started to “wander” across the galaxy, moving with a speed that is different from all the other objects in it? Images from the Hubble space show that GJ1417+52 recently faced and swallowed the remains of small dwarf galaxies. According to scientists, the hole XJ1417+52 could in fact occur within it, where it came in larger GJ1417+52 after the collision that scattered almost all the smaller stars of the galaxy.
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