Massive cosmic objects formed after supernova explosions, whose gravitational field is so strong that it does not allow all kinds of material formations and radiation to escape from them, are called black holes. With research from a university in America, a new black hole has been added to the black holes detected so far.
Astronomers from the University of Texas have detected a massive black hole at the center of many of our galaxy’s dwarf satellite galaxies. Located very close to our solar system, this new black hole was named Leo I. Researchers examining the gravitational force on the stars around the black hole stated that the size of Leo I is very large compared to the size of the galaxy.
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This strange ball-like black hole was detected by a sensitive measuring instrument attached to the McDonald Observatory’s Harlan J. Smith Telescope in Texas that can detect the velocities of stars in distant galaxies. The rapid movements of the stars are considered to be an indicator of the newly discovered dark matter. The greater the gravity, the faster the stars move. Stars moving at such a rapid rate, surprising astronomers, gave an idea of the size of the black hole’s mass.
“When we compared the Milky Way and the black hole, we observed that the mass ratio of the black hole, named Leo I, is definitely very large, even though our galaxy is more dominant,” said Karl Gebhardt, co-author of the study published in the Astrophysical Journal. “Since there is no explanation for this type of black hole in dwarf spherical galaxies, current models are a major blow to existing theories of the evolution of galaxies,” said María José Bustamante, co-author of the study.
“If Leo I has a high mass, this could explain how black holes grow in massive galaxies,” Gebhardt said. The discovery may require rewriting how we understand the distribution of matter within galaxies.
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