Massive Black-hole weighs around 70 solar masses

Pablo Tucker
December 4, 2019

Now, a team of astronomers led by scientists at the Chinese Academy of Sciences have published a new paper in the journal Nature reporting the discovery of LB-1 - what could be the most massive stellar black hole ever found in our galaxy. Considering the way massive stars form and die, a black hole this enormous should not be possible in our galaxy. The hole is called LB-1 and is 70 times larger than our sun en masse, which is an awesome discovery because it was previously thought that black holes could only have a mass of 20 times our sun. China uses the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST).

The discovery of the huge black hole named LB-1 by the Chinese-led team that discovered it has toppled that assumption. In October, researchers discovered what they believe to be a new type of black hole, smaller than the other kinds.


The size of the newly discovered black hole, LB-1, is so large that it questions how we assumed black holes were formed in our galaxy.

Until a few years ago, stellar black holes could only be discovered when they gobbled up gas from a companion star. Instead of looking for X-rays emitted by black holes, the team looked for stars that were orbiting some invisible object, being pulled in by its gravity. LB-1 is twice as massive as what we thought possible. Astronomers have finally unveiled the first photo of a black hole. Astronomers didn't found any black hole like this. This is a relatively uncommon activity, meaning most black holes have gone undetected. Due to this process, they should not be capable of leaving behind a remnant that can collapse into a 70 solar mass black hole.


"Now theorists will have to take up the challenge of explaining its formation", Liu said. Liu Jifeng, says in a statement: "Black holes of such mass should not even exist in our Galaxy, according to most of the current models of stellar evolution". The other theory that has been considered is that the black hole was created from a "fallback supernova". In May, Reitze's team made its own breakthrough discovery - observing the never-before-seen collision of a neutron star and a black hole, which sent out ripples in space and time. "This discovery forces us to re-examine our models of how stellar-mass black holes form", said LIGO director David Reitze from the University of Florida in the United States. For instance, the mass of the black hole is determined by its calculated distance.

"The revelation of LB-1 fits pleasantly with another leap forward in astronomy", institute agents included a similar proclamation. These cosmic bodies are exactly how their name is, as they can be more very big by millions of tens of billions of times than our Sun. This discovery along with the LIGO-Virgo detections of binary black holes has pointed towards a new beginning of the understanding of black hole astrophysics.


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