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Gravitational Collapse of Rotating Supermassive Stars including Nuclear Burning Effects
Haruki Uchida, Masaru Shibata, Takashi Yoshida +2
Supermassive stars (SMSs) of mass are candidates for seeds of supermassive black holes found in the center of many massive galaxies. We simulate the gravitat…
Stability of rigidly rotating supermassive stars against gravitational collapse
Masaru Shibata, Haruki Uchida, Yuichiro Sekiguchi
We revisit secular stability against quasi-radial collapse for rigidly rotating supermassive stars (SMSs) in general relativity. We suppose that the SMSs are in a nuclear-burning p…
Explicit-Implicit Scheme for Relativistic Radiation Hydrodynamics
Hiroyuki R. Takahashi, Ken Ohsuga, Yuichiro Sekiguchi +2
We propose an explicit-implicit scheme for numerically solving Special Relativistic Radiation Hydrodynamic (RRHD) equations, which ensures a conservation of total energy and moment…
Radiation Magnetohydrodynamics for Black Hole-Torus System in Full General Relativity: A Step toward Physical Simulation
Masaru Shibata, Yuichiro Sekiguchi
A radiation-magnetohydrodynamic simulation for the black hole-torus system is performed in the framework of full general relativity for the first time. A truncated moment formalism…