Radiative cooling induced coherent maser emission in relativistic plasmas.

ABSTRACT: Relativistic plasmas in strong electromagnetic fields exhibit distinct properties compared to classical plasmas. In astrophysical environments, such as neutron stars, white dwarfs, active galactic nuclei, and shocks, relativistic plasmas are pervasive and are expected to play a crucial role in the dynamics of these systems. Despite their significance, experimental and theoretical studies of these plasmas have been limited. Here, we present the first ab initio high-resolution kinetic simulations of relativistic plasmas undergoing synchrotron cooling in a highly magnetized medium. Our results demonstrate that these plasmas spontaneously generate coherent linearly polarized radiation in a wide range of parameters via the electron cyclotron maser instability, with radiative losses altering the

SUBMITTER: Bilbao P 

PROVIDER: S-EPMC11988401 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature