Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003head....7.2103l&link_type=abstract
American Astronomical Society, HEAD meeting #7, #21.03; Bulletin of the American Astronomical Society, Vol. 35, p.635
Astronomy and Astrophysics
Astronomy
1
Scientific paper
The Chandra HETGS spectra of the Seyfert 1 galaxy MCG--6-30-15 show numerous narrow, unresolved (FWHM <= 200 km s-1) absorption lines from a wide range of ionization states of N, O, Mg, Ne, Si, S, Ar, and Fe. The initial analysis of these data, presented in Lee et al. (2001), shows that a dusty warm absorber is reasonable for explaining the soft X-ray spectral features >= 0.48 keV (<= 26 Å ). This conclusion is contrary to the results reported from XMM-Newton which call for relativistically broadened soft X-ray emission line. We will discuss updated results based on the 120 ks Chandra HETGS and the 360 ks XMM spectra of this source. Detailed plasma diagnostics of the ionized absorption lines in the HETGS spectrum point to an outflow in MCG-6-30-15 which shows a distribution of v and N H which depend on ξ . The neutral Fe Kα emission as seen with the Chandra resolution will also be discussed. JCL thanks the Chandra Postdoctoral Fellowship Award PF2-30023 for support.
Canizares Calude R.
Fabian Andrea C.
Fang Taotao
Kallman Tim
Lee Jae-Chul
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