DETAILED CLASSIFICATION OF SWIFT'S GAMMA-RAY BURSTS

被引：75

作者：

Horvath, I. ^{[1
]}

Bagoly, Z. ^{[2
]}

Balazs, L. G. ^{[3
]}

de Ugarte Postigo, A. ^{[4
,5
]}

Veres, P. ^{[1
,2
]}

Meszaros, A. ^{[6
]}

机构：

[1] Bolyai Mil Univ, Dept Phys, H-1581 Budapest, Hungary

[2] Eotvos Lorand Univ, Dept Phys Complex Syst, H-1117 Budapest, Hungary

[3] Konkoly Observ Budapest, H-1505 Budapest, Hungary

[4] European So Observ, Santiago 19, Chile

[5] INAF OAB, I-23807 Merate, LC, Italy

[6] Charles Univ Prague, Fac Math & Phys, Astron Inst, CR-18000 Prague 8, Czech Republic

来源：

ASTROPHYSICAL JOURNAL | 2010年 / 713卷 / 01期

关键词：

gamma rays: general; methods: statistical; RHESSI SATELLITE; SKY-DISTRIBUTION; CATALOG; BATSE; ANISOTROPY; REDSHIFTS; AFTERGLOW; BEPPOSAX; GALAXY;

D O I：

10.1088/0004-637X/713/1/552

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：552 / 557

页数：6

共 47 条

[1] Intrinsic spectra and energetics of BeppoSAX Gamma-Ray Bursts with known redshifts [J].

Amati, L ;

Frontera, F ;

Tavani, M ;

in't Zand, JJM ;

Antonelli, A ;

Costa, E ;

Feroci, M ;

Guidorzi, C ;

Heise, J ;

Masetti, N ;

Montanari, E ;

Nicastro, L ;

Palazzi, E ;

Pian, E ;

Piro, L ;

Soffitta, P .

ASTRONOMY & ASTROPHYSICS, 2002, 390 (01) :81-89

[2] Measuring the cosmological parameters with the Ep,i-Eiso correlation of gamma-ray bursts [J].

Amati, Lorenzo ;

Guidorzi, Cristiano ;

Frontera, Filippo ;

Della Valle, Massimo ;

Finelli, Fabio ;

Landi, Raffaella ;

Montanari, Enrico .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2008, 391 (02) :577-584

[3] The Swift satellite and redshifts of long gamma-ray bursts -: (Research Note) [J].

Bagoly, Z. ;

Meszaros, A. ;

Balazs, L. G. ;

Horvath, I. ;

Klose, S. ;

Larsson, S. ;

Meszaros, P. ;

Ryde, F. ;

Tusnady, G. .

ASTRONOMY & ASTROPHYSICS, 2006, 453 (03) :797-800

[4] Reclassification of gamma-ray bursts [J].

Balastegui, A ;

Ruiz-Lapuente, P ;

Canal, R .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2001, 328 (01) :283-290

[5] On the difference between the short and long gamma-ray bursts [J].

Balázs, LG ;

Bagoly, Z ;

Horváth, I ;

Mészáros, A ;

Mészáros, P .

ASTRONOMY & ASTROPHYSICS, 2003, 401 (01) :129-140

[6] The afterglow and elliptical host galaxy of the short γ-ray burst GRB 050724 [J].

Berger, E ;

Price, PA ;

Cenko, SB ;

Gal-Yam, A ;

Soderberg, M ;

Kasliwal, M ;

Leonard, DC ;

Cameron, PB ;

Frail, DA ;

Kulkarni, SR ;

Murphy, DC ;

Krzeminski, W ;

Piran, T ;

Lee, BL ;

Roth, KC ;

Moon, DS ;

Fox, DB ;

Harrison, FA ;

Persson, SE ;

Schmidt, BP ;

Penprase, BE ;

Rich, J ;

Peterson, BA ;

Cowie, LL .

NATURE, 2005, 438 (7070) :988-990

[7] Bimodal distribution of the autocorrelation function in gamma-ray bursts [J].

Borgonovo, L .

ASTRONOMY & ASTROPHYSICS, 2004, 418 (02) :487-493

[8] Statistical evidence for three classes of gamma-ray bursts [J].

Chattopadhyay, Tanuka ;

Misra, Ranjeev ;

Chattopadhyay, Asis Kumar ;

Naskar, Malay .

ASTROPHYSICAL JOURNAL, 2007, 667 (02) :1017-1023

[9] The afterglow of GRB 050709 and the nature of the short-hard γ-ray bursts [J].

Fox, DB ;

Frail, DA ;

Price, PA ;

Kulkarni, SR ;

Berger, E ;

Piran, T ;

Soderberg, AM ;

Cenko, SB ;

Cameron, PB ;

Gal-Yam, A ;

Kasliwal, MM ;

Moon, DS ;

Harrison, FA ;

Nakar, E ;

Schmidt, BP ;

Penprase, B ;

Chevalier, RA ;

Kumar, P ;

Roth, K ;

Watson, D ;

Lee, BL ;

Shectman, S ;

Phillips, MM ;

Roth, M ;

McCarthy, PJ ;

Rauch, M ;

Cowie, L ;

Peterson, BA ;

Rich, J ;

Kawai, N ;

Aoki, K ;

Kosugi, G ;

Totani, T ;

Park, HS ;

MacFadyen, A ;

Hurley, KC .

NATURE, 2005, 437 (7060) :845-850

[10] THE GAMMA-RAY BURST CATALOG OBTAINED WITH THE GAMMA-RAY BURST MONITOR ABOARD BeppoSAX [J].

Frontera, F. ;

Guidorzi, C. ;

Montanari, E. ;

Rossi, F. ;

Costa, E. ;

Feroci, M. ;

Calura, F. ;

Rapisarda, M. ;

Amati, L. ;

Carturan, D. ;

Cinti, M. R. ;

Dal Fiume, D. ;

Nicastro, L. ;

Orlandini, M. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2009, 180 (01) :192-223

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