A new study by the International School of Advanced Studies in Italy has provided one of the first answers to the question of how many black holes there are in the universe. This shocking answer covered only one category of black holes.
colossal mass that once lived in the universe black holes, the final stage in the evolution of starsSince they are very difficult to see and naturally find, they leave us without an idea: How many black holes are there in the universe? The answer to this question has been somewhat revealed by the work done by Sissa (International School for Advanced Studies) in Italy.
In the study by astrophysicist Alex Sicilia and his team, the team included only black holes formed through the evolution of single or binary stars. Thus, the team found that during the lifetime of the universe between 5 and 160 times the mass of the Sun. birth rate of stellar black holes was able to calculate. The result was extremely shocking.
“There are 40 quintillion black holes in the universe”
Thanks to the calculated birth rate, the researchers found that in the observable universe today, in an area 93 billion light-years in diameter. about 40 quintillion, ie 40,000,000,000,000,000,000 (18 of 0) declared it to be a stellar black hole. It has been stated that these stellar black holes are formed by binary black hole mergers in star clusters.
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What’s more fascinating and frightening is that this number only shows black holes in one category. To date, astronomers have classified black holes as stellar, giant, intermediate, and primordial (micro). into four different categories had divided. In other words, this number would be much higher when considered directly as a ‘black hole’.
Source :
https://www.sciencealert.com/new-study-calculates-the-number-of-black-holes-in-the-universe-it-sa-lot