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2020ApJ...894L..22W - Astrophys. J., 894, L22-L22 (2020/May-2)

Is GRB 110715A the progenitor of FRB 171209?

WANG X.-G., LI L., YANG Y.-P., LUO J.-W., ZHANG B., LIN D.-B., LIANG E.-W. and QIN S.-M.

Abstract (from CDS):

The physical origin of fast radio bursts (FRBs) is unknown. Young magnetars born from gamma-ray bursts (GRBs) have been suggested as a possible central engine of FRBs. We test such a hypothesis by systematically searching for GRB-FRB spatial associations from 110 FRBs and 1440 GRBs. We find that one FRB event discovered by the Parkes telescope, FRB 171209, is spatially coincident with a historical long-duration GRB 110715A at z = 0.82. The afterglow of GRB 110715A is consistent with being powered by a millisecond magnetar. The extragalactic dispersion measure of FRB 171209 is in excess of that contributed by the intergalactic medium, which can be interpreted as being contributed by a young supernova remnant associated with the GRB. Overall, the significance of the association is (2.28-2.55)σ. If the association is indeed physical, our result suggests that the magnetars associated with long GRBs can be the progenitors of at least some FRBs.

Abstract Copyright: © 2020. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Radio transient sources - Gamma-ray sources - Magnetars

Simbad objects: 7

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