Astronomers using three space telescopes find one of the best candidates for black holes of intermediate mass today. To detect the object managed in the event of a tidal destruction of a small star, which led to the flash x-ray, reported on the website of the space telescope “Hubble”.
There is strong evidence of the existence of black holes of stellar masses (up to ten solar masses), resulting in the death of massive stars, and supermassive black holes (from 106 to 1010 solar masses) located in the centers of many galaxies. Not so long ago foretold the existence of intermediate black holeswhose mass is in the range from 10 to 105 solar masses, but their detection extremely difficult, although the search is in progress for a long time. Candidates for such objects were found in dwarf galaxies, globular clusters, hypermommy x-ray sources, however, confirm the presence of black holes is difficult because of the lack of generally accepted reliable methods to determine their mass.
A team of astronomers led by Dagenham Lin (Dacheng Lin) published the results of observations of space telescopes Hubble, Chandra and XMM-Newton x-ray source in 3XMM J215022.4-055108, which is located in the massive star cluster at the edge of the large lenticular galaxy Gal1, its distance is estimated at 247 MPC. The source was observed in 2006 due to soft x-ray burst, which lasted about ten years.
This phenomenon can be explained by the tidal disruption of a star by a black hole of intermediate mass, but was also considered a version of the cooling of the neutron star located in the milky Way. Due to the “Hubble” managed to exclude this version, the 3XMM J215022.4-055108 really is in a star cluster that can be the core of a destroyed dwarf galaxy. Thus, the obtained data indicate that the black hole has a mass of 5×104 solar masses tore the star of the main sequence with a mass of 0.33 solar masses and a radius of 0.41 radius of the Sun, and then around the black hole formed accretion disk of matter from collapsed stars. This discovery allows astronomers to confirm the fact that 3XMM J215022.4-055108 is one of the best candidates for black holes of intermediate mass today.
About what black holes of intermediate masses, and why they are so hard to find you can learn from our material, “the Hunt has already begun”.