GMRT monitoring of Cyg X-1 and Cyg X-3

被引：0

作者：

Pandey, M. ^{[1
]}

Rao, A. P.

Manchanda, R. ^{[2
]}

Durouchoux, P. ^{[3
]}

Ishwara-Chandra, C. H.

机构：

[1] Univ Bombay, Dept Phys, Bombay 400098, Maharashtra, India

[2] Tata Inst Fundamental Res, Dept Astron & Astrophys, Bombay 400005, Maharashtra, India

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

来源：

ADVANCES IN SPACE RESEARCH | 2006年 / 38卷 / 12期

关键词：

binaries; close; stars; cygnus x-1 and cygnus x-3; ISM; jets and outflows; radio continuum stars;

D O I：

暂无

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

We present the results of low frequency radio observations of the X-ray binaries, Cygnus X-1 and Cygnus X-3, during different X-ray states. The low frequency observations were made for the first time for these sources at 0.61 and 1.28 GHz using the Giant Meter-wave Radio Telescope (GMRT) between 2003 and 2004. Both Cyg X-1 and Cyg X-3 are highly variable at low radio frequencies. We also compare our data with the observations at 15 GHz conducted by the Ryle telescope. Spectral turnover is seen for both the sources below 2 GHz. The data suggest that the change in the radio flux density in both the sources is correlated to the X-ray hardness ratio and follows a similar behavior pattern. (C) 2006 Published by Elsevier Ltd on behalf of COSPAR.

引用

页码：2820 / 2823

页数：4

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