天文学家解开了裸眼恒星 50 年来的极端 X 射线之谜
几十年来，一颗肉眼可见的恒星以其异常强大的 X 射线让天文学家一直在猜测。现在，借助日本 XRISM 太空望远镜的高精度观测，科学家们终于发现了源头：一个隐藏的……
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来源: Science Daily
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A star you can see with the naked eye has kept astronomers guessing for decades with its unusually powerful X-rays. Now, thanks to highly precise observations from Japan’s XRISM space telescope, scientists have finally uncovered the source: a hidden white dwarf companion pulling in material and generating extreme heat. This discovery not only solves a 50-year-old mystery surrounding Gamma Cassiopeiae, but also confirms the existence of a long-predicted type of binary star system.