The broad band spectrum of Cyg X-1

被引：0

作者：

Fritz, S ^{[1
]}

Wilms, J

Pottschmidt, K

Nowak, MA

Kreykenbohm, I

Santangelo, A

机构：

[1] Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany

[2] Univ Warwick, Dept Phys, Coventry CV7 1AL, W Midlands, England

[3] Univ Calif San Diego, Ctr Astrophys & Space Sci, La Jolla, CA 92093 USA

[4] MIT CXC, NE80 6077, Cambridge, MA 02139 USA

[5] Integral Sci Data Ctr, 1290 Versoix, Switzerland

来源：

PROCEEDINGS OF THE X-RAY UNIVERSE 2005, VOLS 1 AND 2 | 2006年 / 604卷

关键词：

interacting binaries; Cyg 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 first results on INTEGRAL and RXTE from our multi-mission observing campaign on Cygnus X-1. The black hole binary Cyg X-1 has been observed simultaneously by INTEGRAL, RXTE, and XMM-Newton for four times in 2004 November and December, when Cyg X-1 became first observable with XMM-Newton (see contribution by Wilms. et al., these proceedings). One of the scientific aims of this campaign was the measurement of a high signal to noise spectrum of Cyg X-1 from 2.5 keV to > 600 keV in order to constrain models for the hard spectral component. We show here first results of our ongoing analysis obtained by modeling the broad band spectrum with simple empirical models as well as with Comptonization models.

引用

页码：267 / +

页数：2