• Google Scholar Citations
• SAO/NASA Astrophysics Data System

Employment

1994.4 - 2003.3	Assistant, Department of Physics, Science University of Tokyo
2003.3 - 2005.5	Assistant Research Scientist, Department of Physics and Astronomy, Johns Hopkins University
2005.5 - 2009.3	Scientist, Earth Simulator Center, JAMSTEC
2009.4 - 2014.3	Scientist, Institute for Research on Earth Evolution, JAMSTEC
2014.3 -	Scientist, Department of Mathematical Science and Advanced Technology, JAMSTEC

Education

1988.4 - 1990.3	Master's Program in Astronomy, University of Tokyo
1990.4 - 1994.3	Doctoral Program in Astronomy, University of Tokyo

Referee Services

• The Astrophysical Journal
• Monthly Notices of the Royal Astronomical Society

Thermal Equilibrium Curves of Accretion Disks

Accretion disks are differentially rotating disks orbiting around a gravitational object. The energy flux $F = \sigma_\text{B}T_\text{eff}^4$ that emerges from gas of surface density $\Sigma$ at a radius $r$ (angular velocity $\Omega(r)$) is determined by local thermal and hydrostatic equilibria. The relation $F=F(\Sigma;\Omega)$, called a thermal equlibrium curve, is a fundamental relation of accretion disks, showing not only a local thermodynamical structure, but also a transport coefficient that controls global evolution of a disk. We are calculating this thermal equlibirum curves for various types of accretion disks from first principles, using 3D radiation MHD simulation.