When people think of a black hole, they usually imagine a large, burning cosmic being that is one million or a billion times larger than our sun. However, not all black holes are supermassive, and smaller ones are also important.
A team of researchers from the University of Michigan measured the mass of the small Black hole in a nearby dwarf galaxy, judging that the black hole is about 40 times smaller than previously thought by the researchers.
The object is located in the center dwarf galaxy NGC 4395, it's around 10,000 times mass of the sun, scientists have determined.
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Although astronomers believe that any galaxy is larger or larger than the galaxy's Milky Way ports supermassive black hole in its center, researchers do not know much about the black holes of smaller galaxies – or black holes exist even in all galaxies.
"Do these galaxies have black holes, and if so, do they scale just like supermassive black holes?" Elena Gallo, professor of astronomy at the University of Michigan and lead author of the study, said statement.
Looking at these relatively small black holes, scientists hope to better understand the supermassive black holes that occupy larger galaxies, the researchers say. They also want to determine how black holes affect the properties of these galaxies.
"Answering these questions can help us understand the mechanism by which these monstrous black holes were collected when the universe was in its infancy," Gallo added.
To measure the mass of the black hole, scientists used the technique referred to as reverb mappingthat measures the radiation ejected by a rotating disk around a black hole.
Researchers are trying to apply the same measurement techniques in supermassive black holes, we read in a statement.
"This adds a new member to the family of black holes that we have information about," Gallo said.
The results were published on June 10 in the journal Astronomy of nature.
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