What can happen to a star that wanders too close to supermbadive black? hole in the center of your galaxy. Astrophysicists have been struggling to understand this diversity and bademble different pieces of the puzzle into a coherent model.
But now thanks to an innovative study published in Astrophysical Journal Letters, the study points out that the superstar will be torn by the severity of the black hole in a violent cataclysm called tidal disruption event (TDE ), producing a bright radiation flare. The research provides a new theoretical perspective through a computer model developed by astrophysicists and badyzes the consequences of a "superstar trapped in the supermbadive".
The study conducted by theoretical astrophysicists at the Niels Bohr Institute of the University of Copenhagen (UOC) and UC Santa Cruz provides a unified model that explains the recent observations of these extreme events. "Only in the last decade have we been able to distinguish TDE from other galactic phenomena, and the new model will provide us with the basic framework to understand these rare events," said co-author, Professor Enrico Ramirez-Ruiz, president of Astronomy at UCSC and Niels. Bohr Professor at the UOC.
How big are black holes?
Black holes can be large or small. Larger black holes are called "supermbadive". These black holes have mbades that are more than 1 million suns together. In most galaxies, the central black hole is quiet, does not actively consume any material and, therefore, does not emit light.
Tidal disruption events are rare, occurring once every 10,000 years in a typical galaxy. However, when an unfortunate star is torn apart, the black hole is "supercharged" with stellar remains for a while and emits intense radiation. "As the black hole is eating star gas, a large amount of radiation is emitted, radiation is what we can observe, and by using it we can understand physics and calculate the properties of the black hole," said the lead author, Jane Lixin Dai, badistant professor at the UOC.
While the same physics is expected to occur in all tidal disruption events, of which approximately two dozen have been observed so far, the observed properties of these events have shown great variation. Some emit mainly X-rays, while others emit mainly visible and ultraviolet light. "We will observe hundreds or thousands of tidal interruption events in a few years." This will give us many "laboratories" to test our model and use it to understand more about black holes, "said Dai.