The Cosmic Density of Massive Black Holes from Galaxy Velocity Dispersions
作者： M. C. Aller , D. Richstone
DOI: 10.1086/344484
关键词: Astrophysics 、 Physics 、 Quasar 、 Supermassive black hole 、 Astronomy 、 Black hole 、 M–sigma relation 、 Mass deficit 、 Stellar black hole 、 Intermediate-mass black hole 、 Binary black hole
摘要: Supermassive black holes are thought to be relics of quasars, and their numbers masses therefore related the quasar luminosity function its evolution with redshift. We have used relationship between hole mass bulge velocity dispersion (the •-σ relation) make an improved estimate density spectrum supermassive holes. Uncertainties in relation little effect on density. find a (4.8 ± 1.6)h2 × 105 M⊙ Mpc-3. Some variance published estimates comes from use different values Hubble constant.
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