Astronomers have discovered a star identical to the sun that is being “repeatedly shredded and consumed” by a black hole 500m light years distant. The stunning occurrence, which was recorded by astronomers at the University of Leicester, produced regular eruptions of light every 25 days.
In general, black hole outbursts, also known as tidal disruption events, occur when a star is swallowed by a black hole. However, repeated emissions imply that the star is only partially destroyed each time.
However, in cases of recurring eruptions, two sorts of outbursts occur, according to the researchers: those that occur once a year and those that occur every few hours. In this incidence of recurrent star shredding, the regularity of emissions lay between the two, said the team.
According to the findings, Swift J0230, instead of fading as expected, used to shine brilliantly for seven to ten days before abruptly switching out, repeating the procedure every 25 days.
Understanding how black holes affect stellar orbits
The researchers noted that their findings, which were published in the journal Nature Astronomy, provided a missing link in everyone’s knowledge of how black holes affect orbiting stars.
Dr. Robert Eyles-Ferris, who submitted his Ph.D. recently at the University of Leicester, said, “In most of the systems we’ve seen in the past, the star is completely destroyed. Swift J0230 is an exciting addition to the class of partially disrupted stars.”
Dr Phil Evans of the University of Leicester School of Physics and Astronomy and the lead author of the study said, “This is the first time we’ve seen a star like our sun being repeatedly shredded and consumed by a low-mass black hole.”
The Swift J0230 outburst models suggested that the star is the size of the sun and is on an elliptical orbit around a low-mass black hole at the center of its galaxy. According to the calculations, material equivalent to the mass of three Earths was ripped from Swift J0230’s atmosphere and heated up by plunging into the black hole.
The extreme heat, believed to be over 2,000,000 C (3,600,000 F), emits a tremendous number of X-rays, which were initially detected by NASA’s Neil Gehrels Swift Observatory. According to the researchers, the black hole has a mass of 10,000 to 100,000 times that of the sun, making it a supermassive black hole in a compact size.
