As the new study shows, a supermassive black hole in the center of a neighboring galaxy, obviously, after absorption, spewed matter into the surrounding space, and this is a phenomenon that could contribute to the formation of the early Universe.
Scientists used NASA's Chandra X-ray telescope to detect two X-ray streams near the center of NGC 5195, a small galaxy about 27 million light-years away. This galaxy is in the process of merging with another large galaxy galaxy NGC 5194, known as “Whirlpool”.
The second part of the observation, made by the 9-meter optical telescope of the Kitt-Peak National Observatory, revealed a rarefied area of relatively cold oxygen outside the outer arc of X-rays.
Scientists believe that hot gas, which generates X-ray emissions, invades colder regions like a snowplow.
“This is the best example of snow removal material I've seen. This is the obvious way to emit gas from the galaxy, ”said Eric Schlegel of the University of Texas, San Antonio, at the conference of the American Astronomical Society (AAS) in Kissimmee (Florida) on Tuesday. “We will hope that this happened much more often in the early Universe. You take high density galaxies, they collide with a lot of frequency, and you will get a similar effect, ”he added.
Studies have shown that black holes not only absorb matter that is in the area of space bent by gravity, but also eject it.
Schlegel also said that it is possible that X-rays come from a substance that is gravitationally ejected when two galaxies merge.
“I am skeptical that this would be an explanation,” Schlegel told reporters. “A more interesting possibility is that supermassive black holes interact with all these incoming masses themselves.”
Subsequent observations of NGC 5195 in other light wavelength ranges specify the understanding of scientists about what is happening. “This gives us a local object to explore,” said Schlegel.
In other similar studies, scientists found a supermassive black hole that could take away the surrounding stars from a nearby black hole. This couple, located about a billion light-years away, is in the galaxy SDSS J1126 + 2944.
A rare pair - one of the twelve known galaxies with two supermassive black holes, is probably the result of the fusion of two galaxies. Julia Camerford from the University of Colorado, which is located in Boulder, spoke about this at the AAS conference. Scientists do not yet have complete confidence in the question of why one of the black holes has 500 times fewer stars than a neighbor.
According to one opinion, this occurs under the influence of strong gravitational and tidal forces caused by galactic fusion, which pull most of the stars from one of the black holes.
Another possibility is that a black hole starving to the stars is actually a rare “intermediate” black hole with a mass up to a million times the mass of the Sun. If so, then most likely, a smaller black hole came from a dwarf galaxy with a proportionally smaller number of stars.
“It’s hard to find an intermediate massive black hole ... how difficult it is to understand where to look for it at all,” explains Kamerford.
“If there is a“ intermediate ”black hole in the galaxy, then, probably, in the end, there will be a merger with its supermassive sister, and as a result, there will be an even larger hole,” added Kamerford.
This study is presented at the AAS conference and appeared in the November issue of the Astrophysical Journal.