Hubble telescope removed the “elusive” black hole of a new type 3XMM J215022.4? 055108. It is smaller than supermassive black holes but larger than stellar-mass objects formed as a result of star collapse. This is stated in a study by scientists from the University of New Hampshire, published in the journal Astrophysical Journal Letters.
Weighing about 50 thousand solar masses, the black hole discovered by the telescope is smaller than supermassive black holes, which weigh from millions to billions of solar masses and are located in the center of large galaxies, but more than stellar-mass black holes formed as a result of the collapse of a massive star.
The so-called medium-mass black holes (IMBH) are the missing link in the evolution of the black hole. Although astronomers have already managed to find candidates for such objects, researchers consider this discovery the most convincing evidence of the existence of medium-sized black holes in the Universe.
The black hole was found as a result of the joint work of the Chandra and Hubble telescopes – in 2006 they discovered a powerful flash of x-ray radiation, but they could not determine whether it arose from inside or outside our galaxy. X-ray source named 3XMM J215022.4? 055108, was not located in the center of the galaxy, where massive black holes were usually located.
His further studies showed that he is IMBH – a representative of a new type of black hole, which scientists still have not been able to detect.
“Medium-sized black holes are elusive objects, so it’s very important to carefully consider and exclude alternative explanations for each candidate. This is exactly what Hubble allowed us to do”.
Dachen Lin, lead author of the study