activity
19962026
most citedAn Ultraluminous X-ray Source Powered by An Accreting Neutron Star

767 citations · 11.8k across the 163 of their papers we have counts for

collaborators

165 papers

astro-ph.HE2026

A mechanism for fast radio bursts and their narrow spectra

Andrei M. Beloborodov, Ivan Demidov

We find an emission mechanism for fast radio bursts (FRBs) capable of producing broad and narrow spectra. It operates in magnetar explosions, which launch an electromagnetic pulse…

astro-ph.HE2026

1D PIC Simulations of Resonant Scattering-Driven Pair Cascades in Magnetar Magnetospheres

Jens F. Mahlmann, Alexander A. Philippov, Adrien Soudais +2

Hard X-rays in persistent magnetar emission originate from radiative processes in pair-loaded magnetospheric plasma, yet self-consistent kinetic simulations of such radiation-rich…

astro-ph.HE2026

Inefficiency of chiral dynamos in protoneutron stars and the early universe

Valentin A. Skoutnev, Andrei M. Beloborodov

The chiral plasma instability (CPI) has been invoked as a possible mechanism for generating primordial magnetic fields in the universe and ultrastrong fields in neutron stars. We i…

astro-ph.HE2026★ 6 cited

High-energy Emission from Turbulent Electron-ion Coronae of Accreting Black Holes

Daniel Groselj, Alexander Philippov, Andrei M. Beloborodov +1

We develop a model of particle energization and emission from strongly turbulent black-hole coronae. Our local model is based on a set of 2D radiative particle-in-cell simulations…

astro-ph.HE2025

Origin of Pulsed Radio Emission from Magnetars

Shuzhe Zeng, Alexander Philippov, James Juno +2

Extended periods of radio pulsations have been observed for six magnetars, displaying characteristics different from those of ordinary pulsars. In this Letter, we argue that radio…

astro-ph.SR2025★ 6 cited

Magnetic Webs in Stellar Radiative Zones

Valentin A. Skoutnev, Andrei M. Beloborodov

Rotational evolution of stellar radiative zones is an old puzzle. We argue that angular momentum transport by turbulent processes induced by differential rotation is insufficient,…