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A group of astronomers found that the supermassive black hole in the center of the Milky Way it does not move as it is believed.
According to new research, the superlative black hole doesn’t rotate much, providing further evidence that a jet is unlikely to exist.
The supermassive black holes such as Sgr A *, which is located at the center of the Milky Way is characterized by: mass and spin. Furthermore, they have a decisive influence on the formation and evolution of galaxies.
Scientists of Harvard and Smithsonian Center for Astrophysics and the Center for Interdisciplinary Exploration and Research in Astrophysics conducted the research and it was published in Letters from astrophysics journals.
“Black holes release a tremendous amount of energy that removes gas from galaxies and thus shapes their star formation history,” commented the Dr. Avi Loeb Harvard science professor.
Black holes have a critical impact on their host galaxy, so measuring the effects of their rotation is difficult.
Loeb y el Dr. Giacomo Frazione de CIERA used the stellar orbits and the spatial distribution of the S stars, the closest to orbit Sgr A * and traveling at great speed.
“We concluded that the supermassive black hole at the center of our galaxy rotates slowly. This could have a significant impact on the detectability of activity at the center of our galaxy and on future observations from the Event Horizon Telescope (EHT) “, Fraction.
The S stars appear to be divided into two common planes, thanks to this Loeb and Fragione have shown that if Sgr A * had a significant spin, the orbital planes of the stars at birth would be misaligned.
“For our study we use the recently discovered S stars to show that the spin of the black hole Sgr A * must be less than 10% of its maximum value, which corresponds to a black light rotating at the speed of light on common orbital planes. . . Of these common orbital planes, the stars would not have remained aligned in them during their lifetime, as can be seen today, “Loeb said.
“The jets are believed to be powered by the rotation of black holes that act as giant flyers,” Loeb said. Fragione added: “In fact, there is no evidence of jet activity at Sgr A *. The next data analysis of EHT will shed more light on this problem. “
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