June 25, 2024

Astronomers have discovered a whole new class of black holes

Astronomers have discovered a whole new class of black holes

The researchers proposed a new method for finding black holes, which indicated the possibility of the existence of objects of much smaller sizes than any previously known.

For many years, astronomers have studied blackholes that are formed during the explosion of supernovae and have enormous gravity, as well as neutron stars – the less dense objects left behind when stars die are not much larger than the Sun.

After decades of observing the Universe, scientists have learned that black holes are about 5-15 times the mass of the Sun, and neutronstars are often 2.1 times.Because if a star 2.5 times the mass of the Sun dies, then it must collapse into a black hole. However, the window in the range between the smallest known black holes and the largest neutron stars has confused many researchers, so astrophysicists at Ohio State University decided to solve this mystery.

The team began studying light analysis dataspectra of 100,000 Milky Way stars collected during the Apache Point Observatory's study of galactic evolution. The shift of wavelengths to the blue and red edges allows us to determine that the star is orbiting an invisible object.

After narrowing your search to potentially suitable200 systems, astronomers have discovered a red giant that revolves around something that is much smaller than known black holes, but more neutron stars. After additional calculations and reconciliation with the data from the Gaia satellite, they realized that they had discovered a black hole with a small mass, which is about 3.3 times heavier than the Sun.

In addition to using a new search method, the researchers potentially identified the first representative of a new class of black holes that they were previously unaware of.

Let us remind you that astronomers will present the first real video of a black hole in 2020.