Volume 398, Number 1, January IV 2003
|Page(s)||223 - 228|
|Section||Stellar structure and evolution|
|Published online||14 January 2003|
Correlated X–ray timing and spectral behavior in GX 349+2 *
ISRO Satellite Centre, Airport Road, Bangalore 560 017, India
2 Joint Astronomy Program, Indian Institute of Science, Bangalore 560012, India
3 Indian Institute of Astrophysics, Bangalore 560 034, India e-mail: email@example.com; firstname.lastname@example.org
Corresponding author: V. K. Agrawal, email@example.com
Accepted: 4 November 2002
We present a detailed and systematic investigation of correlated spectral and timing properties of the Z source GX 349+2, using extensive data 221 ks) obtained from the Proportional-Counter-Array on-board RXTE satellite, during January 1998 and September–October 1998. For the first time a detailed comparison between the normal-branch-properties and the flaring-branch-properties of GX 349+2 has been possible, since this study showed the presence of a rare, extended normal branch. Peaked noise properties have been analyzed as functions of position along the Z-track and have been compared to those of Cyg X-2.
Key words: accretion, accretion disks / stars: binaries: close / stars: individual: GX 349+2 / stars: neutron / X–rays: stars
© ESO, 2003
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