SIMBAD references

2020ApJ...899..106Y - Astrophys. J., 899, 106-106 (2020/August-3)

GRB 200415A: a short gamma-ray burst from a magnetar giant flare?

YANG J., CHAND V., ZHANG B.-B., YANG Y.-H., ZOU J.-H., YANG Y.-S., ZHAO X.-H., SHAO L., XIONG S.-L., LUO Q., LI X.-B., XIAO S., LI C.-K., LIU C.-Z., JOSHI J.C., SHARMA V., CHAKRABORTY M., LI Y. and ZHANG B.

Abstract (from CDS):

The giant flares of soft gamma-ray repeaters (SGRs) have long been proposed to contribute to at least a subsample of the observed short gamma-ray bursts (GRBs). In this paper, we perform a comprehensive analysis of the high-energy data of the recent bright short GRB 200415A, which was located close to the Sculptor galaxy. Our results suggest that a magnetar giant flare provides the most natural explanation for most observational properties of GRB 200415A, including its location, temporal and spectral features, energy, statistical correlations, and high-energy emissions. On the other hand, the compact star merger GRB model is found to have difficulty reproducing such an event in a nearby distance. Future detections and follow-up observations of similar events are essential to firmly establish the connection between SGR giant flares and a subsample of nearby short GRBs.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Gamma-ray bursts - Soft gamma-ray repeaters - Magnetars - Gamma-ray transient sources

Simbad objects: 12

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