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7亿光年外有个400亿倍太阳质量黑洞
source link: https://tech.sina.com.cn/d/s/2019-08-08/doc-ihytcerm9325271.shtml
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来源：科技日报科技日报北京8月7日电（记者刘霞）据美国《新闻周刊》杂志6日报道，科学家在距离地球7亿光年的霍尔姆15A星系团中，发现了一个质量为太阳400亿倍的超大黑洞。如果得到证实，将是这一半径约为10亿光年的区域中最大的超大质量黑洞。研
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