10 papers
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…
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…
Compression fronts from fast radio bursts
Andrei M. Beloborodov
When a fast radio burst (FRB) expands from its source through a surrounding tenuous plasma, it strongly heats and compresses the plasma at radii up to cm. The likely…
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…
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,…
Zones of Tayler Instability in Stars
Valentin A. Skoutnev, Andrei M. Beloborodov
The Tayler instability (TI) of toroidal magnetic fields is a candidate mechanism for driving turbulence, angular momentum (AM) transport, and dynamo action in stellar radiative zon…