During the observation of a supernova in the NGC 157 galaxy, astronomers have discovered an extraordinary phenomenon that has allowed them to learn more about the formation of black holes. This supernova, identified as SN2022jli, occurred in a binary star system where one of the stars disintegrated and most likely transformed into a black hole or a neutron star. The observations have revealed the formation of a supercompact object that orbits its companion and causes changes in the system’s brightness.
Previous theories suggested that black holes are formed through supernova explosions that engulf matter. However, it is only now, thanks to this supernova, that scientists have gained certainty that the process of black hole formation can occur in this way. Supernova observations are relatively common, but not many remnants of the explosions are observed. In the case of the supernova in NGC 157, researchers had the opportunity to directly study the binary system in which the black hole formed.
Previous theories proposed that the supernova exploded, ejecting matter that partially fell onto the less massive companion, causing it to expand. As a result, a supercompact object was formed, which grazed the outer layers of the companion and siphoned off its matter, leading to changes in the system’s brightness. The observations of SN2022jli have confirmed that such a phenomenon is possible and may lead to the formation of a black hole.
Although we still have a long way to go in fully understanding black holes, this recent discovery provides new information about the process of their formation. The supernova in NGC 157 was exceptional and has provided valuable data that helps in unraveling the mysteries of the universe.
FAQ:
How are black holes formed?
Black holes are formed through supernova events in which massive stars explode, and their remnants transform into objects with very strong gravity.
What is a supernova?
A supernova is the explosion of a star that can occur due to the depletion of nuclear fuel or other physical processes within its core.
What are the consequences of crossing the event horizon of a black hole?
Crossing the event horizon of a black hole means that an object will not be able to return to our universe. The gravity of a black hole is so strong that not even light can escape from it.
Source:
astro.edu.pl
The source of the article is from the blog maestropasta.cz