March 28, 2020
Massive black holes

Astronomers found Massive Black holes in small galaxies, four million times larger than the sun


Our universe is full of mysteries and surprises, and the layers of mysteries deepen when it comes to galaxies and black holes. That’s why the astronomers are still trying to understand them. In this episode, astronomers have discovered some of the small galaxies that are home to large black holes. The results of this research may detect strong gravitational forces in these space regions. It is believed that in the early years of the universe, this massive black hole would have been formed.

Scientists have discovered some small galaxies that are home to massive black holes. These black holes are four lakh times larger than the sun.

The study has been published in the Astrophysical Journal. The study found 13 large black holes in this small galaxy, four million times larger than the sun. At the same time, the galaxy is 100 times smaller than our own Milky Way. According to other researchers, including the Montana State University of America, these galaxies are so far away that light will take no less than a billion years to reach them from Earth.

University of Montana researcher Amy Reins explained,’ We hope that the study of these black holes and their galaxies will help us to come to the conclusion that similar black holes formed and evolved at the beginning of the universe. Then how did they meet each other over a period of billions of years, and the Sun formed a billion or billions of times larger supermassive black holes that we see in today’s large galaxies. Scientists used the VLA Radio Astronomy Observatory located in central New Mexico to detect this black hole.

Earlier in 2011, Reins and his colleagues used VLA to find the first large black hole in the small Starbust galaxy. Scientists began to sample galaxies from the NASA-Solan map (a list of galaxies seen with an illuminated telescope) after reaching a conclusion in a recent study. He selected galaxies of stars of less than three billion times the weight of the Sun. He chose one of these galaxies, which appeared in the Faint Images of the Radio Sky National Radio Astronomy Observatory at the Twenty Centimeter survey. Then the scientists took a high-resolution picture of the selected galaxy.

Reins explained, “New observations of the VLA show that there is solid evidence for 13 black holes in these galaxies, actively swallowing nearby objects.” We were very surprised to find that unlike large galaxies, about half of the 13 galaxies did not have black holes at their centre.’ Based on the findings of the study, astronomers reported that the galaxies must have intermingled in their early years. Reins explained, “This study teaches us that we need to broaden our scope of research for large black hole research in small galaxies.” It is possible that larger galaxies are present in smaller galaxies.’

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