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Das Gupta P.
Fast Radio Bursts from Magnetar Glitches / Das Gupta P. - Текст на англ. языке // Физические интерпретации теории относительности, Международная научная конференция 24-я, Москва, 7 - 10 июля 2025 г. = Physical Interpretations of Relativity Theory (PIRT–2025) : сборник тезисов / МГТУ им. Н. Э. Баумана. - М., 2025. -
Both non-CHIME and CHIME fast radio bursts (FRBs) were subjected to statistical analysis and the ensuing outcome point to a strong statistical evidence for the existence of two categories of FRB events — high luminosity and low luminosity ones, with a large fraction of the repeaters falling into the latter category. The median values of radio-luminosity of the FRBs corresponding to these categories are ∼ 10 erg/s and ∼ 10 erg/s, respectively. We put forward a simple theoretical model to explain the observed bimodality in the FRB luminosity wherein the majority of FRBs are linked to magnetar glitches that entail abrupt increase in the Goldreich-Julian charge density as well as sudden decrease in the light-cylinder radius. These lead to release of bunched charge particles to flow along the open field lines just outside the light-cylinder, giving rise to the FRB phenomena. In the present study, we have considered relativistic effects resulting from glitches like emission of gravitational waves and the plausibility of observing the Gertsenshtein-Zel’dovich effect due to the ambient magnetic field.
