Massive black holes gobbling up galaxies Pacman style

A new study using NASA’s Chandra X-ray Observatory states that there’s a new type of supermassive black holes out there which are a lot hungrier than usual. Supermassive black holes. They can be seen in the middle of galaxies, which measures up from millions to billions times over than the mass of our Sun. Some of these black holes gobble up gas and dust which forms a “disc” surrounding the mass. When matter from the disc falls down to the black hole, a fountain of particles will flow out, looking like cloudy elements. They are known as quasar black holes and they glow more radiantly than the galaxy itself because that disc releases a large amount of energy.

However, the ones uncovered by Bin Luo and his group of astronomers “[dine] at enormous rates, at least five to ten times faster than typical quasars.”

The group examined the information gathered from 51 quasars taken by Chandra and they found out that 65% of them appear approximately 40 times blurred in x-rays. These quasars have low carbon secretions at ultraviolet wavelengths. Based on the information, the group examined a model and concluded that some quasars are extremely hungry monsters that attract abundant amounts of gas and dust which are more likely to form a donut instead a disc around the black hole.

These donuts protect greedy quasars from prying telescopic eyes which is why they appear blurry to Chandra. “If a quasar is embedded in a thick donut-shaped structure of gas and dust,” said team member Jianfeng Wu, “the donut will absorb much of the radiation produced closer to the black hole and prevent it from striking gas located further out, resulting in weaker ultraviolet atomic emission and X-ray emission.”

It is very likely that these hungry black holes are growing at much quicker rates than others and it made have been more usual after the Big Bang. That’s why scientists found a lot of hungry quasars in their studies, which are all, situated around 5 to 11.5 billion light-years away. However, not all supermassive quasars are black holes, even our own galaxy isn’t. As of the moment, Milky Way is not eating up matter. But that could change once Milky Way clashes with Andromeda in around 4 billion years.




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