A new explanation for the Supergiant Fast X-ray Transients' outbursts

被引：0

作者：

Sidoli, Lara ^{[1
]}

Romano, Patrizia ^{[2
]}

Mereghetti, Sandro ^{[1
,3
]}

Paizis, Ada ^{[1
,3
]}

Vercellone, Stefano ^{[1
,3
]}

Mangano, Vanessa ^{[4
]}

Gotz, Diego ^{[5
]}

机构：

[1] INAF, Ist Astrofis Spaziale & Fis Cosm, Via E Bassini 15, I-20133 Milan, Italy

[2] INAF, Osservatorio Astronom Brera, I-23807 Merate, Lc, Italy

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

[4] INAF, Inst Astrofis Spaziale & Fis Cosm, I-90146 Palermo, Italy

[5] CEA Saclay, DAPNIA Serv Astrophys, F-91191 Gif Sur Yvette, France

来源：

POPULATION EXPLOSION: THE NATURE AND EVOLUTION OF X-RAY BINARIES IN DIVERSE ENVIRONMENTS | 2008年 / 1010卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The physical mechanism responsible for the short outbursts in a recently recognized class of High Mass X-ray Binaries, the Supergiant Fast X-ray Transients (SFXTs), is still unknown. Recent observations performed with Swift/XRT, XMM-Newton and INTEGRAL of the 2007 outburst from IGRJ11215-5952, the only SFXT known to exhibit periodic outbursts, suggest a new explanation for the outburst mechanism in this class of transients; the outbursts could be linked to the possible presence of a second wind component in the supergiant companion, in the form of an equatorial wind. The applicability of the model to the short outburst durations of all other Supergiant Fast X-ray Transients, where a clear periodicity in the outbursts has not been found yet, is discussed. The scenario we are proposing also includes the persistently accreting supergiant High Mass X-ray Binaries.

引用

页码：247 / +

页数：2

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