"Soft X-ray transient" outbursts which aren't soft
Abstract
We have accumulated multiwavelength (X-ray, optical, radio) lightcurves for the eight black hole X-ray binaries which have been observed to enter a supposed `soft X-ray transient' outburst, but remained in the low/hard state throughout the outburst. Comparison of the lightcurve morphologies, spectral behaviour, properties of the quasi-periodic oscillations and the radio jet provides the first study of such objects as a sub-class of X-ray transients. However rather than assuming that these hard state X-ray transients are different from the `canonical' soft X-ray transient, we prefer to consider the possibility that new analysis of both soft and hard state X-ray transients in a spectral context will provide a model capable of explaining the outburst mechanisms of (almost) all black hole X-ray binaries.
Cite
@article{arxiv.astro-ph/0311152,
title = {"Soft X-ray transient" outbursts which aren't soft},
author = {C. Brocksopp and R. M. Bandyopadhyay and R. P. Fender},
journal= {arXiv preprint arXiv:astro-ph/0311152},
year = {2009}
}
Comments
Accepted for publication in New Astronomy