All sky archival search for FRB high energy counterparts with Swift and Fermi

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Abstract

Fast radio bursts (FRBs) are millisecond duration radio signals from unknown cosmic origin. Many models associate FRBs with high-energy astrophysical objects such as magnetars. In this attempt to find counterparts to FRBs we explore gamma-ray bursts (GRBs) from the Swift and Fermi missions. We first search for spatial correlations between FRB and GRB populations as a whole and then search for a one-by-one correlation between each of the FRBs and GRBs investigated. Temporal coincidences are not considered. To evaluate the significance of any correlation found, we generate background realizations that take into account instrumentally induced anisotropies in the distribution of the sources. Neither study yields any significant counterpart detection. We estimate that less than 4% of the FRBs are associated with GRBs in the studied samples.

Original languageEnglish
Article number555
JournalProceedings of Science
Volume444
Publication statusPublished - 27 Sept 2024
Event38th International Cosmic Ray Conference, ICRC 2023 - Nagoya, Japan
Duration: 26 Jul 20233 Aug 2023

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