Chandra--ASCA--RXTE observations of the micro-quasar GRS 1915+105
Abstract
A Chandra AO1 30ks HETGS observation of the X-ray transient micro-quasar GRS 1915+105 reveals absorption edges and faint line emission over the HETG energy range. We find from a preliminary analysis evidence for prominent neutral K edges associated with iron, silicon, magnesium, and tentatively sulphur. The column densities assuming solar abundances are consistent with ~ few x in excess of the Galactic value, and may point to surrounding cold material associated with GRS 1915+105. Neutral Fe K emission, and ionized absorption from Fe XXV and Fe XXVI are resolved. We limit our discussion to the Chandra results.
Cite
@article{arxiv.astro-ph/0012111,
title = {Chandra--ASCA--RXTE observations of the micro-quasar GRS 1915+105},
author = {J. C. Lee and N. S. Schulz and C. S. Reynolds and A. C. Fabian and E. G. Blackman},
journal= {arXiv preprint arXiv:astro-ph/0012111},
year = {2007}
}
Comments
6 pages, 4 figures, Contributed talk at "X-ray Astronomy 2000" meeting, Palermo, Italy, Sept. 2000. Proceedings to be published in ASP Conference series, eds. R. Giaconni, L. Stella, & S. Serio, 2000