The metallicity of circumnuclear star forming regions

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dc.creatorDiaz, A. I.
dc.creatorTerlevich, E.
dc.creatorCastellanos, M.
dc.creatorHagele, G. F.
dc.date2006-10-26
dc.date.accessioned2026-07-07T07:27:09Z
dc.date.available2026-07-07T07:27:09Z
dc.descriptionWe present a spectrophotometric study of circumnuclear star forming regions (CNSFR) in the early type spiral galaxies: NGC 2903, NGC 3351 and NGC 3504, all of them of over solar metallicity according to standard empirical calibrations. A detailed determination of their abundances is made after careful subtraction of the very prominent underlying stellar absorption. It is found that most regions show the highest abundances in HII region-like objects. The relative N/O and S/O abundances are discussed. In is also shown that CNSFR, as a class, segregate from the disk HII region family, clustering around smaller ``softness parameter" -- η' -- values, and therefore higher ionizing temperatures.
dc.description4 pages, 5 figures, Metal Rich Universe Conf
dc.identifierhttps://arxiv.org/abs/astro-ph/0610787
dc.identifierhttp://arxiv.org/abs/astro-ph/0610787
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/117279
dc.subjectAstrophysics
dc.titleThe metallicity of circumnuclear star forming regions
dc.typetext

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