902 citations · 16k across the 315 of their papers we have counts for
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The effect of energy amplification variance on the shock-acceleration
Junichi Aoi, Kohta Murase, Shigehiro Nagataki
The shock-acceleration theory predicts a power-law energy spectrum in the test particle approximation, and there are two ways to calculate a power-law index, Peacock's approximatio…
Unstable GRB photospheres and electron-positron annihilation lines
Kunihito Ioka, Kohta Murase, Kenji Toma +2
We propose an emission mechanism of prompt gamma-ray bursts (GRBs) that can reproduce the observed non-thermal spectra with high radiative efficiencies, >50%. Internal dissipation…
Closure Relations for Electron-Positron Pair-Signatures in Gamma-Ray Bursts
Kohta Murase, Kunihito Ioka
We present recipes to diagnose the fireball of gamma-ray bursts (GRBs) by combining observations of electron-positron pair-signatures (the pair-annihilation line and the cutoff ene…
High energy neutrino early afterglows from gamma-ray bursts revisited
Kohta Murase
The high energy neutrino emission from gamma-ray bursts (GRBs) has been expected in various scenarios. In this paper, we study the neutrino emission from early afterglows of GRBs,…
High Energy neutrino signals from the Epoch of Reionization
F. Iocco, K. Murase, S. Nagataki +1
We perform a new estimate of the high energy neutrinos expected from GRBs associated with the first generation of stars in light of new models and constraints on the epoch of reion…
Cosmogenic neutrinos as a probe of the transition from Galactic to extragalactic cosmic rays
Hajime Takami, Kohta Murase, Shigehiro Nagataki +1
There are two promising scenarios that explain the ankle, which is a dip in the spectrum of cosmic rays at eV. A scenario interprets the ankle as the transition from…