2004ApJ...617L..21J

Query : 2004ApJ...617L..21J

2004ApJ...617L..21J - Astrophys. J., 617, L21-L24 (2004/December-2)

Swift identification of dark gamma-ray bursts.

JAKOBSSON P., HJORTH J., FYNBO J.P.U., WATSON D., PEDERSEN K., BJORNSSON G. and GOROSABEL J.

Abstract (from CDS):

We present an optical flux versus X-ray flux diagram for all known gamma-ray bursts (GRBs) for which an X-ray afterglow has been detected. We propose an operational definition of dark bursts as those bursts that are optically subluminous with respect to the fireball model, i.e., that have an optical-to-X-ray spectral index βox<0.5. Out of a sample of 52 GRBs, we identify five dark bursts. The definition and diagram serve as a simple and quick diagnostic tool for identifying dark GRBs based on limited information, particularly useful for early and objective identification of dark GRBs observed with the Swift satellite.

Abstract Copyright: ∼

Journal keyword(s): ISM: Dust, Extinction - Galaxies: High-Redshift - Gamma Rays: Bursts

Simbad objects: 40

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Number of rows : 40
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 GRB 000529 gB 00 09 48.3 -61 27 53           ~ 17 0
2 GRB 990627 gB 01 48 25.4 -77 04 38           ~ 19 1
3 GRB 000210 gB 01 59 15 -40 40.0           ~ 175 0
4 GRB 010220 gB 02 36 59.0 +61 46 00           ~ 40 0
5 GRB 990806 gB 03 10.5 -68 07           ~ 36 0
6 GRB 970228 gB 05 01 46.7 +11 46 53           ~ 650 1
7 GRB 991216 gB 05 09 31.2983 +11 17 07.262           ~ 430 0
8 GRB 991014 gB 06 51 03.0 +11 36 05           ~ 41 0
9 GRB 970508 gB 06 53 49.2 +79 16 19           ~ 883 1
10 GRB 980329 gB 07 02 41 +38 50.7           ~ 276 1
11 GRB 990907 gB 07 33.7 -69 47           ~ 20 0
12 GRB 000115 gB 08 03 30.0 -17 13 30           ~ 29 0
13 SN 2002lt SN* 08 08 59.858 +06 43 37.52           SNIc: 363 1
14 GRB 001025 gB 08 36.6 -13 04           ~ 48 1
15 GRB 020124 gB 09 32 50.8 -11 31 11           ~ 155 0
16 GRB 980613 gB 10 17 57.8 +71 27 26           ~ 204 1
17 GRB 000528 gB 10 45 08.0 -33 59 26           ~ 29 0
18 GRB 011211 gB 11 15 16 -21 56.0           ~ 305 0
19 GRB 990506 gB 11 54 41 -26 45.0           ~ 169 1
20 GRB 971214 gB 11 56 26.4 +65 12 01           ~ 445 1
21 GRB 990704 gB 12 19 27.3 -03 50 22           ~ 50 0
22 GRB 971227 gB 12 57 15.0 +59 24 02           ~ 50 0
23 GRB 990510 gB 13 38 07.64 -80 29 48.8           ~ 499 1
24 GRB 000630 gB 14 47.2 +41 13           ~ 53 1
25 GRB 970402 gB 14 50 06.0 -69 20 00           ~ 70 1
26 GRB 010222 G 14 52 12.5 +43 01 06           ~ 364 1
27 GRB 990123 gB 15 25 29 +44 45.0     8.95     ~ 1012 1
28 GRB 970111 gB 15 28 15.0 +19 36 18           ~ 140 0
29 GRB 000615 gB 15 32.6 +73 48           ~ 27 0
30 GRB 000926 gB 17 04 15 +51 46.0           ~ 373 0
31 GRB 010214 gB 17 40 58.0 +48 34 37           ~ 41 0
32 GRB 020322 gB 18 00 48.5 +81 06 13           ~ 44 0
33 GRB 970828 gB 18 08 31.6 +59 18 51           ~ 353 1
34 GRB 001109 gB 18 30 07.8 +55 17 56           ~ 39 0
35 GRB 000214 gB 18 54 27.0 -66 27 30           ~ 92 0
36 GRB 011030 gB 20 43 35.4 +77 17 20           ~ 76 0
37 GRB 991106 gB 22 24 40.8 +54 22 45           ~ 26 0
38 GRB 980519 gB 23 22 21.5 +77 15 43           ~ 203 0
39 GRB 981226 gB 23 29 37.2 -23 55 54           ~ 108 1
40 GRB 980703 gB 23 59 06.7 +08 35 07           ~ 453 1

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