your ID: 0109 
First Name: Kimitake 
Last Name: Hayasaki 
Affiliation: Yukawa Institue for Theoretical Physics 

Title: 3D SPH simulations of an accretion flow from the circumbinary disk
around the supermassive binary black holes
Authors: Kimitake Hayasaki, Shin Mineshige and Hiroshi Sudou 
Topic: 2 
Session: oral 

Abstract: 
We investigate the accretion onto the supermassive binary black holes 
from the circumbinary disks, using a three-dimensional (3D) smoothed 
particles hydrodynamics (SPH) code.
We find that the material captured by each black hole fluctuates
and has little orbital-phase dependence in a circular binary, whereas
it clearly modulates with binary orbit in an eccentric binary due to its
time-dependent binary potential.
This could provide the circumstantial evidence whether there are supermassive 
binary black holes in core of merged galaxies.