Fast Radio Bursts from non-resonant Alfvén waves and synchrotron maser emission in the magnetar wind
arXiv:2508.05840 · doi:10.1093/mnras/staf1880
Abstract
Non-resonant interactions between Alfvén waves and a relativistic plasma result in the formation of the population inversions necessary for synchrotron maser emission (SME) across a wide range of magnetisations and temperatures. We calculate the peak frequencies of the SME resulting from this interaction and show that the characteristic frequencies and energetics of fast radio bursts (FRBs) can be produced in the relativistic wind of a magnetar using this mechanism. Wind Lorentz factors of are shown to be necessary to explain observed FRBs. Emission is possible at temperatures of . We further examine the periods and magnetic fields of the central magnetar and demonstrate that the optimal values of these properties align with the observed magnetar population provided that the magnetosphere is disturbed by the flaring activity. These results allow the properties of the environment such as temperature and magnetisation to be probed from the observed FRB frequency and luminosity.
13 pages, 11 figures, accepted by MNRAS
References in corpus (39)
- A fast radio burst associated with a Galactic magnetar
- A bright millisecond-duration radio burst from a Galactic magnetar
- Fast radio bursts as synchrotron maser emission from decelerating relativistic blast waves
- INTEGRAL discovery of a burst with associated radio emission from the magnetar SGR 1935+2154
- A fast radio burst localised to a massive galaxy
- The Physical Mechanisms of Fast Radio Bursts
- HXMT Identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428
- The Physics of Fast Radio Bursts
- LOFAR Detection of 110-188 MHz Emission and Frequency-Dependent Activity from FRB 20180916B
- No pulsed radio emission during a bursting phase of a Galactic magnetar
- Chromatic periodic activity down to 120 MHz in a Fast Radio Burst
- Formation Rates and Evolution Histories of Magnetars
- The synchrotron maser emission from relativistic shocks in Fast Radio Bursts: 1D PIC simulations of cold pair plasmas
- Heating and Non-thermal Particle Acceleration in Relativistic, Transverse Magnetosonic Shock Waves in Proton-Electron-Positron Plasmas
- The z-DM distribution of fast radio bursts
- Electrodynamics of pulsar magnetospheres
- Inferring the Energy and Distance Distributions of Fast Radio Bursts using the First CHIME/FRB Catalog
- FAST observations of an extremely active episode of FRB 20201124A: II. Energy Distribution
- Plasmoid ejection by Alfvén waves and the fast radio bursts from SGR 1935+2154
- A luminous fast radio burst that probes the Universe at redshift 1
- Coherent Electromagnetic Emission from Relativistic Magnetized Shocks
- Energy functions of fast radio bursts derived from the first CHIME/FRB catalogue
- The Birthrate of Magnetars
- Transparency of Fast Radio Burst Waves in Magnetar Magnetospheres
- Polarization of Fast Radio Bursts: radiation mechanisms and propagation effects
- The synchrotron maser emission from relativistic magnetized shocks: Dependence on the pre-shock temperature
- The confrontation of the shock-powered synchrotron maser model with the Galactic FRB 200428
- Millisecond Magnetars
- Detection of Fast Radio Bursts on the Large Scanning Antenna of the Lebedev Physical Institute
- Linearly-polarized Coherent Emission from Relativistic Magnetized Ion-electron Shocks
- Relativistic coronal mass ejections from magnetars
- Reanalysis of the X-ray burst associated FRB 200428 with Insight-HXMT observations
- A Nançay Radio Telescope study of the hyperactive repeating FRB 20220912A
- Filamentation of Fast Radio Bursts in magnetar winds
- Escape of fast radio bursts from magnetars
- Multi-wavelength and Multi-messenger Counterparts of Fast Radio Bursts
- The Galactic population of magnetars : a simulation-based inference study
- Three-Dimensional Numerical Simulations of Magnetar Crust Quakes
- Compression fronts from fast radio bursts