2001A&A...379L..39L


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.03CET01:43:22

2001A&A...379L..39L - Astronomy and Astrophysics, volume 379, L39-43 (2001/12-1)

Possible detection of hard X-ray afterglows of short γ-ray bursts.

LAZZATI D., RAMIREZ-RUIZ E. and GHISELLINI G.

Abstract (from CDS):

We report the discovery of a transient and fading hard X-ray emission in the BATSE lightcurves of a sample of short γ-ray bursts. We have summed each of the four channel BATSE light curves of 76 short bursts to uncover the average overall temporal and spectral evolution of a possible transient signal following the prompt flux. We found an excess emission peaking ∼30s after the prompt one, detectable for ≃100s. The soft power-law spectrum and the time-evolution of this transient signal suggest that it is produced by the deceleration of a relativistic expanding source, as predicted by the afterglow model.

Abstract Copyright:

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

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 GRB 980923 gB 05 07.8 -80 36           ~ 48 0
2 GRB 000301C gB 16 20 18.5 +29 26 35           ~ 342 0
3 GRB 920723 gB 19 10 32 +27 17.8           ~ 42 0

    Equat.    Gal    SGal    Ecl

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2021.03.03-01:43:22

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