Title

FRB131104 Swift/BAT Data Revisited: No Evidence of a Gamma-Ray Counterpart

Document Type

Article

Publication Date

2-18-2021

Publication Title

Astrophysical Journal

Volume

908

Issue

2

First page number:

1

Last page number:

6

Abstract

We present a reanalysis of the Swift Burst Alert Telescope (BAT) data around the radio detection of FRB 131104. Possible evidence of a gamma-ray counterpart was presented by DeLaunay et al. However, based on our analysis using all the available BAT data, no significant emission is found in either the temporal or the image domain. We place a 5 sigma fluence upper limit of 3.3 x 10(-6) erg cm(-2) and 2.7 x 10(-6) erg cm(-2) (15-150 keV) with an integration time of 300 s assuming a simple power-law spectrum with photon index of -1.2 and -2.0, respectively. Our result does not support the association of this FRB with a high-energy counterpart, in agreement with growing observational evidence that most FRBs are not associated with catastrophic events such as gamma-ray bursts.

Keywords

Radio transient sources; Swift burst alert telescope; Radio detection; Fast radio bursts; Gamma-ray

Disciplines

Astrophysics and Astronomy | Physical Sciences and Mathematics

Language

English

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