SPH Simulations of Accretion Flows onto the Supermassive Binary Black Holes from the Circumbinary Disks

Hayasaki, Kimitake; Mineshige, Shin; Sudou, Hiroshi

SPH Simulations of Accretion Flows onto the Supermassive Binary Black Holes from the Circumbinary Disks

Authors

Hayasaki, Kimitake

Mineshige, Shin

Sudou, Hiroshi

Description

We investigate the accretion flows onto the supermassive binary black holes (SMBBHs) from the circumbinary disk with the equal mass, eccentric binary on the subparsec scale, using Smoothed Particle Hydrodynamics (SPH) code. We find that the material can be supplied from circumbinary disk, which leads to the formation of two accretion disks around the SMBBHs. The mass accretion rates significantly modulate with the binary orbital motion. These could provide the observable diagnosis of the existence of the supermassive binary black holes (e.g. OJ287) on the subparsec scale in merged galactic nuclei.
Conference proceedings to appear in "The Central Engine of Active Galactic Nuclei", ed. L. C. Ho and J.-M. Wang (San Francisco: ASP)