A mini-state transition in cygnus X-1

被引：0

作者：

Malzac, J. ^{[1
]}

Petrucci, P. O. ^{[1
,2
]}

Jourdain, E.

Cadolle, M. ^{[3
]}

Sizun, P. ^{[3
]}

Pooley, G. ^{[5
]}

Cabanac, C.

Chaty, S. ^{[6
]}

Belloni, T. ^{[7
]}

Rodriguez, J.

Roques, J. P. ^{[1
]}

Durouchoux, P. ^{[6
]}

Goldwurm, A. ^{[3
,4
]}

Laurent, P. ^{[3
,4
]}

机构：

[1] UPS, CNRS, OMP, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse, France

[2] Lab Astrophys Observ Grenoble, F-38041 Grenoble, France

[3] CEA Saclay, DSM DAPNIA SAp, Serv Astrophys, F-91191 Gif Sur Yvette, France

[4] APC, UMR 7164, F-75231 Paris, France

[5] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[6] Univ Paris 07, CNRS, CEA, UMR 715,AIM,CEA Sacaly,DSM DAPNIA,Serv Astrophys, FR-91191 Gif Sur Yvette, France

[7] INAF, Osservatorio Astron Brera, I-23807 Merate, Italy

来源：

6TH INTEGRAL WORKSHOP: THE OBSCURED UNIVERSE | 2007年 / 622卷

关键词：

gamma-rays : observations; black hole physics; radiation mechanisms : non-thermal; X-rays : binaries; radio continuum : stars; X-rays : individual : Cygnus X-1;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of an INTEGRAL observation of Cygnus X-1 in an intermediate state. During our 1 days long observation, the source exhibited a strong flux and spectral variability correlated with the radio emission. The study of this broad band variability suggests that the source made a mini-state transition from a nearly hard state to a nearly soft state, and back.

引用

页码：345 / +

页数：2

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