“天关”卫星可能捕捉到黑洞“进食”现场

Core Viewpoint - The Chinese Academy of Sciences' National Astronomical Observatory reported the detection of an unusually bright and rapidly changing X-ray source, designated EP250702a, which is believed to be a medium-mass black hole tearing apart and consuming a white dwarf star, marking the first observation of such an extreme black hole "feeding" event [1] Group 1 - The event EP250702a exhibited brightness variations, radiation patterns, and spectral characteristics that are significantly different from any previously known outbursts [1] - The research team proposed a groundbreaking explanation for the event, suggesting it involves a medium-mass black hole with a mass between hundreds to hundreds of thousands of solar masses, capable of gradually tearing apart a dense white dwarf star [1] - White dwarfs are remnants of dead stars with an average density that can reach up to one million times that of the Sun [1]