38 citations · 72 across the 11 of their papers we have counts for
Showing 2024Show all
3 papers · 1 filter
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…
astro-ph.HE2024
The Dzhanibekov Effect as a Possible Source of Magnetar Activity
Tomoki Wada, Jiro Shimoda
Magnetars, which are neutron stars with strong magnetic fields, exhibit occasional bursting activities. The shape of a magnetar is not perfectly spherical due to the Lorentz force…