A THEORETICAL MODEL FOR THE Mbh-j RELATION FOR SUPERMASSIVE BLACK HOLES IN GALAXIES
نویسندگان
چکیده
We construct a model for black hole formation in galactic bulges. The initial state is a slowly rotating isothermal sphere, with an effective transport speed and rotation rate Q. The black hole mass is determined when the aeff centrifugal radius of the collapse flow exceeds the capture radius of the central black hole. This model reproduces the observed correlation between black hole masses and galactic velocity dispersions, # 8 M ≈ 10 M bh , , where . This model also predicts the ratio of black hole mass to host mass: 1 4 (j/200 km s ) j p 2a m eff B . 1 m ≈ 0.004(j/200 km s ) B Subject headings: black hole physics — galaxies: kinematics and dynamics — galaxies: nuclei
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