We present preliminary results from the analysis of simultaneous multiwavelength observations of the black hole candidate Swift J1753.5-0127. The source is still continuing its outburst started in May 2005, never leaving the Low/Hard State. In the X-ray energy spectra we confirm evidence for a thermal component at a very low luminosity possibly extending close to but not at the innermost stable orbit. This is unusual for black hole candidates in the Low/Hard State. Furthermore, we confirm that its radio emission is significantly fainter than expected from the relation observed in other black hole candidates between the observed radio/X-ray fluxes.
@article{arxiv.0803.1735,
title = {Multiwavelength observations of the black hole candidate Swift J1753.5-0127},
author = {Paolo Soleri and Diego Altamirano and Rob Fender and Piergiorgio Casella and Valeriu Tudose and Dipankar Maitra and Rudy Wijnands and Tomaso Belloni and James Miller-Jones and Marc Klein-Wolt and Michiel van der Klis},
journal= {arXiv preprint arXiv:0803.1735},
year = {2009}
}
Comments
4 pages, 1 figure; to be published in proceedings of "A Population Explosion: The Nature and Evolution of X-ray Binaries in Diverse Environments", 28 Oct. - 2 Nov. 2007, St. Petersburg Beach, FL (R.M. Bandyopadhyay, S. Wachter, D. Gelino, & C.R. Gelino, eds.)