A thirty-four billion solar mass black hole in SMSS J2157–3602, the most luminous known quasar,Monthly Notices of the Royal Astronomical Society

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A thirty-four billion solar mass black hole in SMSS J2157–3602, the most luminous known quasar
Monthly Notices of the Royal Astronomical Society ( IF 4.7 ) Pub Date : 2020-06-30 , DOI: 10.1093/mnras/staa1635
Christopher A Onken _{1,

2} , Fuyan Bian ₃ , Xiaohui Fan ₄ , Feige Wang ₄ , Christian Wolf _{1,

2} , Jinyi Yang ₄

Affiliation

From near-infrared spectroscopic measurements of the MgII emission line doublet, we estimate the black hole (BH) mass of the quasar, SMSS J215728.21-360215.1, as being (3.4 +/- 0.6) x 10^10 M_sun and refine the redshift of the quasar to be z=4.692. SMSS J2157 is the most luminous known quasar, yet its Eddington ratio is only ~0.4. Thus, the high luminosity of quasar is a consequence of its extremely large BH -- one of the most massive BHs at z > 4.

中文翻译：

已知最明亮的类星体 SMSS J2157-3602 中的 340 亿个太阳质量黑洞

通过对 MgII 发射线双峰的近红外光谱测量，我们估计类星体 SMSS J215728.21-360215.1 的黑洞 (BH) 质量为 (3.4 +/- 0.6) x 10^10 M_sun 并改进类星体的红移为 z=4.692。SMSS J2157 是已知最明亮的类星体，但它的爱丁顿比仅为~0.4。因此，类星体的高亮度是其极大的 BH 的结果——z > 4 处质量最大的 BH 之一。

更新日期：2020-06-30

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