Black hole congestion could occur at the center of the galaxy

Many smaller black holes could collide around the largest supermassive black hole. Almost every galaxy has a supermassive black hole at its center. Most giant bodies lead quiet lives, but occasionally they become active as accretion disks surround them and feed on them. Inside this disk, much smaller black holes can interact, eventually leading to a blockage. The new study aims to understand the environments within these accretion disks and how they facilitate, or do not cause, collisions between star-sized black holes. The gas in the disk and the black hole interact in interesting ways, driving these extremely dense objects into specific zones. advertisement Researchers call these intersections “migratory traps.” This is where black hole congestion occurs. As the number of stellar black holes in these regions increases, so does the probability of collisions. However, these traps are very sensitive to the properties of supermassive black holes, and it seems unlikely that the most active black holes have such traps. “We considered where and how many high-traffic intersections are located. Thermal effects play an important role in this process, influencing the location and stability of mobile traps,” lead author says Dr. “One conclusion is that migration traps are not found in highly luminous active galaxies,” Monash University’s Evgeny Grishin said in a statement. Supermassive black holes and their accretion disks are a focus of astrophysics. They are often so bright that they rival the brightness of their parent galaxies, hence the name active galactic nuclei (AGNs). But they’re not just bright; they also influence the evolution of galaxies. Understanding the complexity of their structures helps us understand how they may impact more distant regions. It’s not just about large black holes. Small children are also important. Currently, gravitational wave astronomy is sensitive to stellar wave collisions, and it is of great interest to elucidate the environments in which stellar wave collisions may occur more frequently. However, there is still much work to be done. advertisement “Despite these important discoveries, much remains unknown about the physics of black holes and their environments,” he continued. Glycine is gone. “We are excited by this result, which brings us one step closer to discovering where and how black holes merge in galactic nuclei. The future of gravitational wave astronomy and the study of active galactic nuclei is very promising. .”

source: https://doi.org/10.1093/mnras/stae828