1.9k citations · 4.8k across the 106 of their papers we have counts for
5 papers · 1 filter
Compton degradation of gamma-ray line emission from radioactive isotopes in the classical nova V2491 Cygni
Akihiro Suzuki, Toshikazu Shigeyama
To account for the non-thermal emission from the classical nova V2491 Cygni, we perform a series of numerical calculations of radiative transfer of γ-ray photons from the radioacti…
Boron Synthesis in Type Ic Supernovae
Ko Nakamura, Takashi Yoshida, Toshikazu Shigeyama +1
We investigate the neutrino-process in an energetic Type Ic supernova (SN Ic) and resultant productions of the light elements including boron and its stable isotopes. SN Ic is a ve…
Non-thermal photon production via bulk comptonization at supernova shock breakout
Akihiro Suzuki, Toshikazu Shigeyama
We investigate roles of the bulk comptonization process in the propagation of thermal photons emitted at the shock breakout of a supernova explosion. We use a hydrodynamical model…
Probing Explosion Geometry of Core-collapse Supernovae with Light Curves of the Shock Breakout
Akihiro Suzuki, Toshikazu Shigeyama
We investigate effects of aspherical energy deposition in core-collapse supernovae on the light curve of the supernova shock breakout. We performed two-dimensional hydrodynamical c…
Multiple Main Sequence of Globular Clusters as a Result of Inhomogeneous Big Bang Nucleosynthesis
Takashi Moriya, Toshikazu Shigeyama
A new mechanism for enhancing the helium abundance in the blue main sequence stars of omega Centauri and NGC 2808 is investigated. We suggest that helium enhancement was caused by…