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Linearly-polarized Coherent Emission from Relativistic Magnetized Ion-electron Shocks

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arxiv 2311.18487 v1 pith:LJIEK2OY submitted 2023-11-30 astro-ph.HE physics.plasm-ph

Linearly-polarized Coherent Emission from Relativistic Magnetized Ion-electron Shocks

Masanori Iwamoto , Yosuke Matsumoto , Takanobu Amano , Shuichi Matsukiyo , Masahiro Hoshino This is my paper
classification astro-ph.HE physics.plasm-ph
keywords emissionfrbsrelativisticshockcoherention-electronmagnetizedpolarization
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Fast radio bursts (FRBs) are millisecond transient astrophysical phenomena and bright at radio frequencies. The emission mechanism, however, remains unsolved yet. One scenario is a coherent emission associated with the magnetar flares and resulting relativistic shock waves. Here, we report unprecedentedly large-scale simulations of relativistic magnetized ion-electron shocks, showing that strongly linear-polarized electromagnetic waves are excited. The kinetic energy conversion to the emission is so efficient that the wave amplitude is responsible for the brightness. We also find a polarization angle swing reflecting shock front modulation, implicating the polarization property of some repeating FRBs. The results support the shock scenario as an origin of the FRBs.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Scattering of Strong Radio Waves by Particles in Strongly Magnetized Plasmas and Implications for Fast Radio Bursts

    astro-ph.HE 2026-06 unverdicted novelty 7.0

    Relativistic single-particle scattering cross sections for strong electromagnetic waves in strongly magnetized plasma are computed for arbitrary polarization and angle, showing strong suppression and sub-unity optical...

  2. Depolarization Induced by Rapid Polarization Angle Swings: A Common Feature of Pulsars and Fast Radio Bursts?

    astro-ph.HE 2026-07 conditional novelty 6.0

    Rapid polarization-angle swings should depolarize pulsar and FRB emission, yielding an anti-correlation Π_L vs dPA/dt that has tentative support in a subset of pulsars.