The Milky Way might contain 100 million black holes

US scientists estimate that there are about 100 million black holes in the Milky Way we live in.

James Bullock, professor of physics and astronomy at the University of California, Irvine, USA, and colleagues conducted a theoretical study of the number of black holes in the Milky Way, or the Milky Way. The results published on the Royal Astronomical Society's Monthly Notice on August 2 show that there are tens of millions of black holes in the Milky Way, more than expected.

The team based on the number of stars in the Milky Way with different sizes to estimate how many old stars died and formed black holes. "We found that about 100 million black holes exist in our galaxy , " said James Bullock.

The Milky Way can hold up to 100 million black holes.

Oliver Elbert, a member of the research team, said that based on what we know about star formation in different galaxies, we can deduce when and how many black holes form in each galaxy. .

The Milky Way is a fairly large galaxy with many metal-rich stars, such as the Sun. These stars tend to spread much of the material outward during their lifetime, so when they die they form smaller black holes.

Dwarf galaxies have many poor metal stars. These stars do not release much of the outer matter, and eventually create a supernova explosion and a larger black hole when it collapses.

The Interfering Laser Observatory (LIGO) station once recorded the gravitational wave signal emitted by the merger of two black holes that are 30 times the mass of the Sun. This collision shows a large number of not only black holes, but also supermassive black holes in the Milky Way and the universe.