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Chandra--ASCA--RXTE observations of the micro-quasar GRS 1915+105 | | J.C. Lee
; N.S. Schulz
; C.S. Reynolds
; A.C. Fabian
; E.G. Blackman
; | | Date: |
5 Dec 2000 | | Subject: | astro-ph | | Affiliation: | MIT), N.S. Schulz (MIT), C.S. Reynolds (JILA), A.C. Fabian (IoA-Cambridge), E.G. Blackman (U. Rochester | | 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 $10^{22} cm^{-2}$ in excess of the Galactic value, and may point to surrounding cold material associated with GRS 1915+105. Neutral Fe K$alpha$ emission, and ionized absorption from Fe XXV and Fe XXVI are resolved. We limit our discussion to the Chandra results. | | Source: | arXiv, astro-ph/0012111 | | Services: | Forum | Review | PDF | Favorites | |
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