activity
20242026
most citedVacuum Polarization Effects in Baryon-Loaded Magnetar Bursts and Implications for X-ray Polarization

2 citations · 2 across the 4 of their papers we have counts for

collaborators
Showing astro-ph.HEShow all

7 papers · 1 filter

astro-ph.HE2026

Constraints on the Physical Association between ICECAT1 Neutrinos and Fast Radio Bursts Using the Second CHIME/FRB Catalogue

Hiroto Masaoka, Tetsuya Hashimoto, Shotaro Yamasaski +8

We present a search for neutrino counterparts to fast radio bursts (FRBs) using temporal and spatial cross-matching between the Second CHIME/FRB catalogue and the IceCube high-ener…

astro-ph.HE2026

Unveiling Hidden Clustering: An Unsupervised Machine Learning Study of Repeating FRB 20220912A

An-Chieh Hsu, Tetsuya Hashimoto, Tomotsugu Goto +2

Fast Radio Bursts (FRBs) are millisecond-duration radio transients of extragalactic origin. Classifying repeating FRBs is essential for understanding their emission mechanisms, but…

astro-ph.HE2026

Spectral Shapes of Pair Annihilation Line Emission in Magnetar Giant Flares

Tomoki Wada, Shigeo S. Kimura

We investigate the gamma-ray spectrum in the MeV range arising from electron-positron pair annihilation in fireballs associated with magnetar giant flares (MGFs), motivated by the…

astro-ph.HE20252 cited

Vacuum Polarization Effects in Baryon-Loaded Magnetar Bursts and Implications for X-ray Polarization

Tomoki Wada

Magnetars provide natural laboratories for strong-field quantum electrodynamics processes, such as vacuum polarization, which gives rise to vacuum resonance together with the plasm…

astro-ph.HE2024

On Acceleration of Highest-Energy Cosmic Rays in a Novel Scenario of Magnetar Transients

Jiro Shimoda, Tomoki Wada

Transient phenomena in magnetars have been considered as possible acceleration sites of ultrahigh-energy cosmic-rays (CRs), whose energy reaches ~200 EeV, such as the Amaterasu par…

astro-ph.HE2024

Radiative Acceleration and X-ray Spectrum of Outflowing Pure Electron-Positron Pair Fireball in Magnetar Bursts

Tomoki Wada, Katsuaki Asano

An X-ray short burst associated with a Galactic fast radio burst was observed in 2020, distinguished by its X-ray cut-off energy significantly exceeding that of other X-ray short b…