IRAS 13197-1627 has them all: Compton-thin absorption, photo-ionized gas, thermal plasmas, and a broad Fe line

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dc.creatorMiniutti, G.
dc.creatorPonti, G.
dc.creatorDadina, M.
dc.creatorCappi, M.
dc.creatorMalaguti, G.
dc.date2006-11-20
dc.date.accessioned2026-07-07T10:20:54Z
dc.date.available2026-07-07T10:20:54Z
dc.descriptionWe report results from the XMM-Newton observation of IRAS 13197-1627, a luminous IR galaxy with a Seyfert 1.8 nucleus. The hard X-ray spectrum is steep and is absorbed by Compton-thin neutral gas. We detect an Fe emission line at 6.4 keV, consistent with transmission through the absorber. The most striking result of our spectral analysis is the detection of a dominant X-ray reflection component and broad Fe line from the inner accretion disc. The reflection-dominated hard X-ray spectrum is confirmed by the strong Compton hump seen in a previous BeppoSAX observation and could be the sign that most of the primary X-rays are radiated from a compact corona (or e.g. base of the jet) within a few gravitational radii from the black hole. We also detect a relatively strong absorption line at 6.81 keV which, if interpreted as Fe xxv resonant absorption intrinsic to the source, implies an outflow with velocity of about 5000 km/s. In the soft energy band, the high-resolution RGS and the CCD-resolution data show the presence of both photo-ionized gas and thermal plasma emission, the latter being most likely associated with a recent starburst of 15-20 solar masses per year.
dc.descriptionaccepted for publication in MNRAS
dc.identifierhttps://arxiv.org/abs/astro-ph/0611621
dc.identifierhttp://arxiv.org/abs/astro-ph/0611621
dc.identifierMon.Not.Roy.Astron.Soc.375:227-239,2007
dc.identifierdoi:10.1111/j.1365-2966.2006.11291.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175001
dc.subjectAstrophysics
dc.titleIRAS 13197-1627 has them all: Compton-thin absorption, photo-ionized gas, thermal plasmas, and a broad Fe line
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