Seyfert Galaxies in the Local Universe: Analysis of Spitzer Spectra of a Complete Sample

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dc.creatorTommasin, S.
dc.creatorSpinoglio, L.
dc.creatorHainline, K.
dc.creatorMalkan, M. A.
dc.creatorSmith, H.
dc.date2008-07-30
dc.date.accessioned2026-07-07T09:53:46Z
dc.date.available2026-07-07T09:53:46Z
dc.descriptionThe Spitzer high resolution spectra of 72 Seyfert galaxies from the 12$μ$m Galaxy Sample are presented and discussed. The presence of starburst components in these galaxies can be quantified by powerful mid-IR diagnostics tools (i.e. 11.25$μ$m PAH feature equivalent width and the H$_2$ emission line intensity), as well as the AGN dominance can be measured by specific fine structure line ratios (e.g. [NeV]/[NeII], [NeV]/[SiII], etc.). The two types of Seyfert galaxies do not show any statistical difference in our diagnostic tools. However, the Seyfert 2's showing hidden Broad Line Regions in spectro-polarimetric observations have on average an higher AGN dominance, a weaker star formation component and a warmer [60 - 25] spectral index than those without broad emission lines.
dc.descriptionProceedings of the Conference "The central kiloparsec. Active Galactic Nuclei and their hosts, 4-6 June 2008, Ierapetra, Crete, Greece
dc.identifierhttps://arxiv.org/abs/0807.4896
dc.identifierhttp://arxiv.org/abs/0807.4896
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/166074
dc.subjectAstrophysics
dc.titleSeyfert Galaxies in the Local Universe: Analysis of Spitzer Spectra of a Complete Sample
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