科研人员发现一恒星与黑洞相遇后“幸存”

Core Insights - An international research team led by Tel Aviv University has observed a star surviving a tidal disruption event caused by a supermassive black hole, returning to the vicinity of the black hole approximately two years later, marking a rare phenomenon [1] Group 1: Research Findings - The study published in the Astrophysical Journal Letters indicates that nearly every large galaxy's center contains a supermassive black hole with a mass ranging from millions to billions of times that of the Sun [1] - Tidal disruption events occur when a star wanders close to a black hole, resulting in the star being torn apart and producing a bright flare, providing a brief observational window for scientists [1] - The researchers observed a flare named "AT 2022dbl" in 2022 and captured a nearly identical flare in the same location two years later, confirming that the star was not completely consumed by the black hole [1] Group 2: Future Observations - The research team plans to observe whether a third flare will occur in early 2026, which would support the hypothesis that the second flare also resulted from partial disruption of the star [2] - If a third flare is not observed, it may indicate that the second flare signifies the complete disruption of the star [2]