The 2008 May burst activation of SGR 1627-41

被引：46

作者：

Esposito, P. ^{[1
,2
,3
]}

Israel, G. L. ^{[4
]}

Zane, S. ^{[5
]}

Senziani, F. ^{[3
,6
]}

Starling, R. L. C. ^{[7
]}

Rea, N. ^{[8
]}

Palmer, D. M. ^{[9
]}

Gehrels, N. ^{[10
]}

Tiengo, A. ^{[3
]}

De Luca, A. ^{[1
,2
,3
]}

Goetz, D. ^{[11
]}

Mereghetti, S. ^{[3
]}

Romano, P. ^{[12
]}

Sakamoto, T. ^{[9
]}

Barthelmy, S. D. ^{[9
]}

Stella, L. ^{[4
]}

Turolla, R. ^{[5
,13
]}

Feroci, M. ^{[14
]}

Mangano, V. ^{[12
]}

机构：

[1] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy

[2] Univ Pavia, INFN Pavia, I-27100 Pavia, Italy

[3] INAF Ist Astrofis Spaziale & Fis Cosm Milano, I-20133 Milan, Italy

[4] Osserv Astron Roma, INAF, I-00040 Monte Porzio Catone, Italy

[5] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England

[6] IUSS, I-27100 Pavia, Italy

[7] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England

[8] Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1098 SJ Amsterdam, Netherlands

[9] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[10] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[11] CEA Saclay, DSM Irfu Serv Astrophys, F-91191 Gif Sur Yvette, France

[12] INAF Ist Astrofis Spaziale & Fis Cosm Palermo, I-90146 Palermo, Italy

[13] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy

[14] INAF Ist Astrofis Spaziale & Fis Cosm Roma, I-00133 Rome, Italy

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2008年 / 390卷 / 01期

基金：

英国科学技术设施理事会;

关键词：

stars: neutron; X-rays: bursts; X-rays: individual: SGR 1627-41;

D O I：

10.1111/j.1745-3933.2008.00530.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In 2008 May, the soft gamma-ray repeater (SGR) SGR 1627-41 resumed its bursting activity after nearly a decade of quiescence. After detection of a bright burst, Swift pointed its X-ray telescope in the direction of the source in less than five hours and followed it for over five weeks. In this Letter, we present an analysis of the data from these Swift observations and an XMM-Newton one performed when SGR 1627-41 was still in a quiescent state. The analysis of the bursts detected with Swift/Burst Alert Telescope shows that their temporal and spectral properties are similar to those found in previous observations of SGR 1627-41 and other SGRs. The maximum peak luminosity of the bursts was similar to 2 x 10(41) erg s(-1). Our data show that the outburst was accompanied by a fast flux enhancement and by a hardening of the spectrum with respect to the persistent emission.

引用

页码：L34 / L38

页数：5

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