82 citations · 237 across the 7 of their papers we have counts for
11 papers
Sensitivity of JEM-EUSO to GRB Neutrinos
Katsuaki Asano, Kenji Shinozaki, Masahiro Teshima
JEM-EUSO is a mission to study ultra-high-energy cosmic rays (UHECRs) by measuring the fluorescence light from giant air showers at the altitude of the International Space Station.…
Slow Heating Model of Gamma-Ray Burst: Photon Spectrum and Delayed Emission
K. Asano, T. Terasawa
We propose a new mechanism for the prompt emission of gamma-ray burst. In our model electrons are continuously accelerated in the post shock region via plasma turbulence. Using the…
A Relativistic Electron-Positron Outflow from a Tepid Fireball
Katsuaki Asano, Fumio Takahara
Through detailed numerical simulations, we demonstrate that relativistic outflows (Lorentz factor ) of electron-positron pairs can be produced by radiative acceleration ev…
Secondary Photons from High-energy Protons Accelerated in Hypernovae
K. Asano, P. Mészáros
Recent observations show that hypernovae may deposit some fraction of their kinetic energy in mildly relativistic ejecta. In the dissipation process of such ejecta in a stellar win…
Prompt GeV-TeV Emission of Gamma-Ray Bursts Due to High-Energy Protons, Muons and Electron-Positron Pairs
Katsuaki Asano, Susumu Inoue
In the framework of the internal shock scenario, we model the broadband prompt emission of gamma-ray bursts (GRBs) with emphasis on the GeV-TeV bands, utilizing Monte Carlo simulat…
Generation of a Fireball in AGN Hot Plasmas
Katsuaki Asano, Fumio Takahara
Motivated by relativistic jets observed in active galactic nuclei (AGN), we simulate outflows of electron-positron pairs strongly coupled with photons from normal electron-proton p…