But Alex Filippenko of the University of California at Berkeley said the discovery is most likely a black hole.
但加利福尼亚大学伯克利分校的亚历克斯称该射线源更有可能是黑洞。
"We know of several dozen stellar black holes in our galaxy but don't know their ages," said Alex Filippenko, an astrophysicist at the University of California at Berkeley.
“我们知道我们银河系里几十个恒星黑洞，但是不知道它们的年龄。”位于伯克利的加利福尼亚大学的天体物理学家Alex Filippenko说。
"We know of several dozen stellar black holes in our galaxy but don't know their ages," said Alex Filippenko, an astrophysicist at the University of California at Berkeley.
“我们知道我们银河系里几十个恒星黑洞，但是不知道它们的年龄。”位于伯克利的加利福尼亚大学的天体物理学家Alex Filippenko说。
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