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
samplesComment: Proceedings 38th International Cosmic Ray Conference (ICRC2023