INTEGRAL broadband X-ray spectrum of the intermediate polar V709 Cassiopeiae

被引:17
作者
Falanga, M [1 ]
Bonnet-Bidaud, JM
Suleimanov, V
机构
[1] CNRS, FRE 2591, CEA Saclay, DSM,DAPNIA,Serv Astrophys, F-91191 Gif Sur Yvette, France
[2] Unite Mixte Rech Astroparticule & Cosmol, F-75005 Paris, France
[3] Kazan VI Lenin State Univ, Kazan 420008, Russia
[4] Univ Oulu, Astron Div, Oulu 90014, Finland
[5] Isaac Newton Inst, Kazan Branch, Santiago, Chile
关键词
binaries : general; stars : individual : V709 Cas; X-rays : stars;
D O I
10.1051/0004-6361:20054002
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present the hard X-ray time-averaged spectrum of the intermediate polar V709 Cas observed with INTEGRAL. We performed the observation using data from the IBIS/ISGRI instrument in the 20 - 100 keV energy band and from JEM-X at lower energy ( 5 - 20 keV). Using different multi-temperature and density X-ray post-shock models we measured an improved post-shock temperature of similar to 40 keV and estimated the V709 Cas mass to be 0.82(-0.25)(+0.12) M-circle dot. We compare the resulting spectral parameters with previously reported BeppoSAX and RXTE observations.
引用
收藏
页码:561 / 564
页数:4
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