SIMBAD references

2019ApJ...884...59L - Astrophys. J., 884, 59-59 (2019/October-2)

GRB X-ray flare properties among different GRB subclasses.

LIU C. and MAO J.

Abstract (from CDS):

Gamma-ray bursts (GRBs) can be divided into three subclasses: X-ray flash (XRF), X-ray rich (XRR), and classical GRB (C-GRB). An X-ray flare is the rebrightening emission shown in the early X-ray afterglow of some GRBs. In this paper, we comprehensively examine the X-ray flare properties among XRF, XRR, and C-GRB subclasses. We utilize the XRF, XRR, and C-GRB subclass samples obtained from the Swift-BAT3 catalog, and the X-ray flare observational properties are collected from Falcone et al., Chincarini et al., and Yi et al. We find that XRFs and XRRs have more bright X-ray flares than C-GRBs. The ratio of the X-ray flare fluence to the prompt emission fluence has different distributions between XRF and C-GRB subclasses. The linear correlation between the duration and the peak time of the X-ray flares is also different between XRF and C-GRB subclasses. We are inclined to identify the GRBs with the bright X-ray flares as XRFs or XRRs. We discuss some issues that are related to the XRF/XRR/C-GRB classification. We also caution the selection effects and the instrument bias in our investigation. Large samples are required in the future to further confirm our results.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): gamma rays: general - radiation mechanisms: non-thermal

Status in Simbad:  waiting for electronic table

CDS comments: GRB 090502B is a misprint for GRB 050502B.

Simbad objects: 62

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2020.02.25-11:34:49

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