INTEGRAL-RXTE observations of Cygnus X-1

被引：0

作者：

Pottschmidt, K ^{[1
]}

Wilms, J ^{[1
]}

Nowak, MA ^{[1
]}

Dubath, P ^{[1
]}

Kreykenbohm, I ^{[1
]}

Gleissner, T ^{[1
]}

Chernyakova, M ^{[1
]}

Rodriguez, J ^{[1
]}

Zdziarski, AA ^{[1
]}

Beckmann, V ^{[1
]}

Kretschmar, P ^{[1
]}

Pooley, GG ^{[1
]}

Martínez-Núñez, S ^{[1
]}

Courvoisier, TJL ^{[1
]}

Schönfelder, V ^{[1
]}

Staubert, R ^{[1
]}

机构：

[1] MPE, D-85748 Garching, Germany

来源：

PROCEEDINGS OF THE 5TH INTEGRAL WORKSHOP ON THE INTEGRAL UNIVERSE | 2004年 / 552卷

关键词：

black hole physics; stars : individual; (Cygnus X-1); gamma-rays : observations; X-rays : binaries; X-rays : general;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The canonical black hole binary Cygnus X-1 has been extensively observed during INTEGRAL's performance verification phase in 2002 November and December. The source was found to be in the hard state. About 50 ks of (quasi-)simultaneous RXTE observations have been obtained in order to support calibration efforts. Together these observations provide some of the highest quality broad band spectra available for this source. The campaign is also supported by radio data obtained with the Ryle telescope. We present an analysis of the broad band spectra using several Comptonization models. Compared to our earlier presentations of this data set, a new RXTE-PCA calibration and a much improved INTEGRAL-SPI response have been used. This allows to better constrain important physical parameters of the accretion process such as the temperature and optical depth of the corona as well as the reflection fraction.

引用

页码：345 / 348

页数：4

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