JWST 证实类星体不会随宇宙时间演变

IF 12.9 1区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Nature Astronomy Pub Date : 2024-06-17 DOI:10.1038/s41550-024-02280-1

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摘要

虽然恒星和星系是随着时间的推移逐渐形成的，但超大质量黑洞似乎在宇宙的 "宇宙黎明 "时就已经存在了。对一颗早期类星体（由黑洞驱动的准恒星天体）的中红外光谱的分析表明，当宇宙的年龄只有现在的5%时，超大质量黑洞及其进食机制就已经完全成熟了。

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JWST confirms that quasars do not evolve across cosmic time

Although stars and galaxies have developed over time, it seems that supermassive black holes already existed at the ‘cosmic dawn’ of the Universe. Analysis of the mid-infrared spectrum of an early quasar (a quasi-stellar object powered by a black hole) suggests that supermassive black holes and their feeding mechanisms were already completely mature when the Universe was 5% of its present age.

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来源期刊

Nature Astronomy Physics and Astronomy-Astronomy and Astrophysics

CiteScore

19.50

自引率

2.80%

发文量

252

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