新的钱德拉数据显示,小星系比大星系更不可能容纳超大型黑洞。
Small galaxies are much less likely than large ones to host supermassive black holes, new Chandra data shows.
利用美国航天局的Chandra X射线天文台进行的一项新研究发现,小星系接收超大黑洞的可能性远小于大星系,只有大约30%的矮星系有这种黑洞的迹象,而大型星系则超过90%。
A new study using NASA’s Chandra X-ray Observatory finds that smaller galaxies are far less likely to host supermassive black holes than larger ones, with only about 30% of dwarf galaxies showing signs of such black holes, compared to over 90% in massive galaxies.
研究人员对超过1 600个星系进行了分析,将小星系缺乏X射线排放归因于黑洞微弱或真正缺乏中央黑洞,支持以下观点,即超大质量黑洞主要通过气体云直接坍塌而不是从较小的残余物中生长而形成于大星系。
Analyzing over 1,600 galaxies, researchers attribute the lack of X-ray emissions in small galaxies to either faint black holes or a true scarcity of central black holes, supporting the idea that supermassive black holes form primarily in massive galaxies through direct collapse of gas clouds rather than growing from smaller remnants.
研究结果表明,黑洞形成与银河系质量紧密相连,在早期宇宙中可能是罕见的。
The findings suggest black hole formation is strongly tied to galaxy mass and may have been rare in the early universe.