activity
19982026
most citedGRB Formation Rates inferred from the Spectral Peak Energy - Luminosity Relation

720 citations · 10k across the 183 of their papers we have counts for

collaborators

189 papers

astro-ph.HE2026

Fast Radio Bursts from Induced Upscattering. I. Magnetar Polar Fireballs

Rei Nishiura, Kunihito Ioka, Bing Zhang

The extreme brightness temperatures of fast radio bursts (FRBs) demand a coherent process that converts magnetar burst energy into millisecond radio emission. We propose that FRBs…

physics.plasm-ph2026

Revisiting the Growth Rate of the Relativistic Tearing Instability: The Role of the Non-ideal MHD Structure

Kaoru Sugimoto, Kunihito Ioka, Masaru Shibata

Magnetic reconnection in magnetically dominated pair plasmas is a key process in high-energy astrophysical systems. We revisit the relativistic tearing instability in a Harris curr…

astro-ph.HE2026

Mass and Spin Growth of Very Massive Stars in Star Clusters Potentially Associated with Little Red Dots

Ataru Tanikawa, Masaru Shibata, Kunihito Ioka

Using gravitational -body simulations, we investigate the evolution of mass and spin for very massive stars (VMSs) in dense star clusters, which could subsequently evolve into L…

astro-ph.HE2026

Induced Scattering of Strong Waves in Pair Plasmas

Masanori Iwamoto, Kunihito Ioka

We study induced (stimulated) scattering of linearly polarized, strong electromagnetic waves in pair plasmas, which is crucial for understanding the propagation of fast radio burst…

astro-ph.HE2026★ 1 cited

Induced Scattering of Fast Radio Bursts in Magnetar Magnetospheres

Rei Nishiura, Shoma F. Kamijima, Kunihito Ioka

We investigate induced Compton/Brillouin scattering of electromagnetic waves in magnetized electron and positron pair plasma by verifying kinetic theory with Particle-in-Cell simul…

astro-ph.HE2026

One-dimensional PIC Simulation of Induced Compton Scattering in Magnetized Electron-Positron Pair Plasma

Shoma F. Kamijima, Rei Nishiura, Masanori Iwamoto +1

We investigate induced Compton scattering of a circularly polarized Alfvén wave propagating in a magnetized electron-positron pair plasma using one-dimensional Particle-in-Cell (PI…