2000ApJ...538..638K

Query : 2000ApJ...538..638K

2000ApJ...538..638K - Astrophys. J., 538, 638-644 (2000/August-1)

GRB 990510: on the possibility of a beamed X-ray afterglow.

KUULKERS E., ANTONELLI L.A., KUIPER L., KAASTRA J.S., AMATI L., COSTA E., FRONTERA F., HEISE J., IN'T ZAND J.J.M., MASETTI N., NICASTRO L., PIAN E., PIRO L. and SOFFITTA P.

Abstract (from CDS):

We discuss the prompt emission of the γ-ray burst GRB 990510 and its subsequent X-ray afterglow from 8.0 to 44.3 hr after the prompt emission, using observations with the Gamma-Ray Burst Monitor and Narrow Field Instruments on BeppoSAX. In the 40-700 keV band, GRB 990510 had a fluence of ∼1.9x10^–5 ergs.cm^–2, whereas it reached a peak flux of ∼2.4x10^–6 ergs.cm^–2.s^–1. The X-ray afterglow decay light curve can be satisfactorily described by a single power law with an index of -1.42±0.07. Both the X-ray and optical behavior of the afterglow can be explained by γ-ray burst debris expanding as a jet; we find that the cooling frequency is (fixed) between the optical and X-ray wavelength bands.

Abstract Copyright: ∼

Journal keyword(s): Gamma Rays: Bursts - X-Rays: General

Simbad objects: 10

Full paper

View the references in ADS

Number of rows : 10

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag V	Sp type	#ref 1850 - 2026	#notes
1	GRB 990705	gB	05 09 54.5	-72 07 53		~	229	1
2	GRB 970508	gB	06 53 49.2	+79 16 19		~	883	1
3	GRB 980329	gB	07 02 41	+38 50.7		~	276	1
4	PMN J1335-8016	Rad	13 35 42.5	-80 16 28		~	2	0
5	SAX J1336.0-8018	X	13 36 02.71	-80 18 22.8		~	1	0
6	SAX J1337.6-8027	X	13 37 46.46	-80 26 31.3		~	1	0
7	GRB 990510	gB	13 38 07.64	-80 29 48.8		~	499	1
8	SAX J1338.1-8030	X	13 38 11.22	-80 30 02.1		~	2	0
9	GRB 990123	gB	15 25 29	+44 45.0	8.95	~	1012	1
10	GRB 970828	gB	18 08 31.6	+59 18 51		~	353	1

To bookmark this query, right click on this link: simbad:objects in 2000ApJ...538..638K and select 'bookmark this link' or equivalent in the popup menu