Astrophysics, abstract
astro-ph/0606140

From: Hidnenori Matsui [view email]

Date (v1): Wed, 7 Jun 2006 08:34:33 GMT (957kb)
Date (revised v2): Thu, 8 Jun 2006 04:47:03 GMT (957kb)

Effects of a Supermassive Black Hole Binary on a Nuclear Gas Disk

Authors: Hidenori Matsui, Asao Habe, Takayuki R. Saitoh

Comments: 19 pages, 11 figures, accepted for publication in ApJ

We study influence of a galactic central supermassive black hole (SMBH) binary on gas dynamics and star formation activity in a nuclear gas disk by making three-dimensional Tree+SPH simulations. Due to orbital motions of SMBHs, there are various resonances between gas motion and the SMBH binary motion. We have shown that these resonances create some characteristic structures of gas in the nuclear gas disk, for examples, gas elongated or filament structures, formation of gaseous spiral arms, and small gas disks around SMBHs. In these gaseous dense regions, active star formations are induced. As the result, many star burst regions are formed in the nuclear region.

http://arxiv.org/abs/astro-ph/0606140