2010ApJ...713..552H

Query : 2010ApJ...713..552H

2010ApJ...713..552H - Astrophys. J., 713, 552-557 (2010/April-2)

Detailed classification of Swift's gamma-ray bursts.

HORVATH I., BAGOLY Z., BALAZS L.G., DE UGARTE POSTIGO A., VERES P. and MESZAROS A.

Abstract (from CDS):

Earlier classification analyses found three types of gamma-ray bursts (short, long, and intermediate in duration) in the BATSE sample. Recent works have shown that these three groups are also present in the RHESSI and BeppoSAX databases. The duration distribution analysis of the bursts observed by the Swift satellite also favors the three-component model. In this paper, we extend the analysis of the Swift data with spectral information. We show, using the spectral hardness and duration simultaneously, that the maximum likelihood method favors the three-component against the two-component model. The likelihood also shows that a fourth component is not needed.

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Journal keyword(s): gamma rays: general - methods: statistical

Simbad objects: 14

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Number of rows : 14
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 SN 2006aj SN* 03 21 39.670 +16 52 02.27 17.96 19.11 17.40     SNIc-BL 1007 1
2 GRB 080913 gB 04 22 57.90 -25 07 38.6           ~ 213 0
3 GRB 061006 G 07 24 07.8080 -79 11 55.188           ~ 214 0
4 GRB 041217 gB 10 59.2 -17 57           ~ 26 0
5 SDSS J123612.87+285858.8 BiC 12 36 12.8803407000 +28 58 58.780075656           ~ 328 1
6 GRB 060206 gB 13 31 43.420 +35 03 03.60   19.99 17.09     ~ 330 0
7 UGCS J162444.39-273226.8 G 16 24 44.38275 -27 32 26.8381     19.70     ~ 469 1
8 SN 2005nc SN* 18 32 32.560 +26 20 22.34           SNIc: 400 1
9 GRB 050922C gB 21 09 33.000 -08 45 30.10 15.15 15.86 14.69     ~ 301 0
10 GRB 060614 G 21 23 32.140 -53 01 36.10           ~ 714 0
11 GRB 081211A gB 21 52 27.91 -33 50 10.9           ~ 16 0
12 GRB 071117 gB 22 20 10.40 -63 26 36.6           ~ 112 0
13 SN 2008hw SN* 22 39 50.39 -40 08 49.1           SNIc 197 1
14 NVSS J230126-385839 rG 23 01 26.7650 -38 58 40.422   22.22 21.22 21   ~ 325 1

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