1999A&AS..138..443B

Query : 1999A&AS..138..443B

1999A&AS..138..443B - Astron. Astrophys., Suppl. Ser., 138, 443-444 (1999/September-0)

GRANAT/SIGMA observation of GRB 920723 soft gamma-ray afterglow.

BURENIN R.A., VIKHLININ A.A., TEREKHOV O.V., TKACHENKO A.Y., SAZONOV S.Y., GILFANOV M.R., CHURAZOV E.M., SUNYAEV R.A., GOLDONI P., CLARET A., GOLDWURM A., PAUL J., ROQUES J.P., JOURDAIN E., VEDRENNE G. and MANDROU P.

Abstract (from CDS):

We present GRANAT/SIGMA observations of the soft gamma-ray afterglow immediately after the bright GRB 920723. After ∼6s, the burst light curve makes a smooth transition into an afterglow where flux decays as t^–0.7 for at least ∼1000s. At least ∼20% of main burst energy is emitted in the afterglow. The hardness of the afterglow spectrum corresponds to the power law spectral index ≃1, which is significantly softer than the main burst.

Abstract Copyright: ∼

Journal keyword(s): gamma-rays: bursts

Simbad objects: 2

Full paper

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Number of rows : 2

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2023	#notes
1	GRB 910402	gB	05 10.5	+13 41						~	18	0
2	GRB 920723	gB	19 10 32	+27 17.8						~	43	0

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