The Chandra High Energy Transmission Grating Spectrometer probes the dusty warm absorber in the Seyfert 1 galaxy MCG--6-30-15

Simple item page
dc.creatorLee, J. C.
dc.creatorCanizares, C. R.
dc.creatorMarshall, H. L.
dc.creatorFabian, A. C.
dc.creatorMorales, R.
dc.creatorSchulz, N. S.
dc.creatorIwasawa, K.
dc.date2001-10-29
dc.date.accessioned2026-07-07T02:01:04Z
dc.date.available2026-07-07T02:01:04Z
dc.descriptionThe Chandra HETGS spectra of the Seyfert 1 galaxy MCG--6-30-15 show numerous narrow, unresolved (FWHM < 200 km/s) 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 model adequately explains the spectral features > 0.48 keV (< 26 A). We attribute previous reports of an apparently highly redshifted O VII edge to the neutral Fe L absorption complex and the O VII resonance series (by transitions higher than He $γ$; He $α,β,γ$ are also seen at lower energies). The implied dust column density needed to explain the FeI L edge feature agrees with that obtained from earlier reddening studies, which had already concluded that the dust should be associated with the ionized absorber (given the relatively lower observed X-ray absorption by cold gas). Our findings contradict the interpretation of Branduardi-Raymont et al. (2001), based on XMM-Newton RGS spectra, that this spectral region is dominated by highly relativistic soft X-ray line emission originating near the central black hole. Here we review these issues pertaining to the soft X-ray spectral features as addressed by Lee et al., (2001). (Details found in Lee et al., 2001, ApJ., 554, L13)
dc.description4 pages, 2 figures, one of two interpretations of the MCG--6-30-15 spectrum as presented during the workshop discussion; to appear in the proceedings of "X-ray Emission from Accretion onto Black Holes", JHU/LHEA Workshop, June 20-23,2001
dc.identifierhttps://arxiv.org/abs/astro-ph/0110634
dc.identifierhttp://arxiv.org/abs/astro-ph/0110634
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/3619
dc.subjectAstrophysics
dc.titleThe Chandra High Energy Transmission Grating Spectrometer probes the dusty warm absorber in the Seyfert 1 galaxy MCG--6-30-15
dc.typetext

Files

Collections

arXiv