Scientists at the University of Hong Kong and Academia Sinica Institute of Astronomy and Astrophysics in Taiwan and Northwestern University in the U.S. collaborated and established a new hypothesis where they explained how some stellar-mass black holes can grow bigger than others.
Since the underlying discovery of gravitational waves three years prior, five more detections have been observed—and five of the aggregate have been followed back to outflows made by two stellar-mass black holes merging. The 6th was attributed to neutron stars consolidating.
As a significant aspect of their investigations of such detections, space analysts have been amazed by the size of the stellar-mass black holes creating the gravity waves—they were more outstanding than other stellar-mass black holes. Up to this point, their bigger size has been clarified by the hypothesis that they became bigger because they started their lives as stars that contained small amounts of metal—stars with traces of metals would hold the majority of their mass since they deliver weaker solar wind.
In this new effort, the specialists propose another conceivable way for stellar-mass black holes to grow larger than typical. They started by noting some supermassive black holes at the hearts of galaxies are surrounded by a disk of gas and dust.
In such systems, frequent stars are lying simply outside the disk—stars that could develop to wind up stellar-mass dark openings. The specialists propose that it is conceivable that, sometimes, sets of these stars end up in the plate as they evolve into black holes. Such stellar-mass black holes would pull in material from the disk, making them grow larger.
Scientists noted that if such a scenario were to play out, it is also possible that the two merging stars could wind up with a synchronized spin, resulting in a stellar-mass black hole that produces more gravity waves than if the spins had not been synchronized, making them easier for researchers to spot.
Scientists have published their paper published in The Astrophysical Journal Letters.
