Disk-Jet Connection in Cygnus X-3
Abstract
We present the results of a detailed correlation study between the soft X-ray, hard X-ray, and radio emission (obtained from RXTE ASM, BATSE, and GBI observations, respectively) of the bright radio emitting Galactic X-ray binary Cygnus X-3. We detect a very strong positive correlation between the soft X-ray and radio emission during the low-hard and minor flaring periods of the source, and an anti-correlation between the soft and hard X-ray emissions. We present statistical arguments to suggest that the anti-correlation between the radio and hard X-ray emission, reported earlier, is primarily due to their correlation and anti-correlation, respectively, with the soft X-ray emission. We make a wide band X-ray spectral study using the pointed RXTE observations and detect a pivotal behaviour in the X-ray spectrum. We argue that this X-ray spectral pivoting is responsible for the anti-correlation between the soft and hard X-ray emissions. The strong correlation between the soft X-ray and radio emission suggests a close link between the accreting mechanism, plasma cloud surrounding the compact object and the radio emission.
Cite
@article{arxiv.astro-ph/0111416,
title = {Disk-Jet Connection in Cygnus X-3},
author = {M. Choudhury and A. R. Rao and S. V. Vadawale and C. H. Ishwara-Chandra and A. K. Jain},
journal= {arXiv preprint arXiv:astro-ph/0111416},
year = {2009}
}
Comments
Accepted in A&A Letters. Major revioson of discussion, minor revision of tables and figures