In a recently published study Astronomy and Astrophysics LettersA group of researchers at the Massachusetts Institute of Technology (MIT) used different computer models to study 69 confirmed binary black holes to help determine their origin, and found that their data varied by model. configurations. Essentially, inputs were constantly changing outputs, and researchers want to better understand how and why this happens and what steps can be taken to produce more consistent results.

“When you change the model and make it more flexible or make other assumptions, you get a different response to how black holes form in the universe,” said Silvia Biscovianou, a graduate student at MIT and co-author of the LIGO lab. paper’s research, he said in a statement.

“We show that people need to be careful because with our data we are not yet at a point where we can trust what the model is telling us.”

Like binary stars, binary black holes are two massive objects orbiting each other, both potentially capable of colliding or merging, and another common feature is that black holes are sometimes born from the collapse of dying massive stars. known as supernova.

How binary black holes arose, however, remains a mystery because there are two hypotheses for their formation: “field binary evolution” and “dynamic accretion.” Binary evolution involves the explosion of a pair of binary stars and the formation of two black holes in their place, which continue to orbit each other as before.

Since they originally orbited each other as binary stars, it is believed that their spins and inclinations must also align. The scientists also suggest that, given its relatively peaceful environment, their aligned spins suggest they came from the galactic disk.

Dynamic montage is where two separate black holes, each with its own unique tilt and spin, eventually combine through extreme astrophysical processes to form its own binary black hole system.

It is now assumed that this merger is likely to occur in a dense environment such as a globular cluster, where thousands of nearby stars could force two black holes to merge. The real question is: How many binary black holes come from each respective method? Astronomers believe the answer lies in the data, specifically in the measurements of the black hole’s spin. Source