Identification of the 4486,4504A emission lines in O-type spectra

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dc.creatorWerner, K.
dc.creatorRauch, T.
dc.date2001-02-01
dc.date.accessioned2026-07-07T01:57:34Z
dc.date.available2026-07-07T01:57:34Z
dc.descriptionInspired by an appeal to the community from Walborn (these proceedings) we decided to solve the long-standing problem concerning the nature of the 4486,4504A emission lines, which are frequently observed in O-type spectra and which are particularly prominent in supergiants. We claim that these lines emerge from sulfur, namely by de-excitation of a highly excited S IV doublet state. We prove this by an exploratory NLTE calculation with a detailed model atom.
dc.description4 pages, 3 figures. To appear in: Eta Carinae and Other Mysterious Stars, ASP Conference Series, Vol. xxx, 2001, T. Gull, S. Johansson, and K. Davidson, eds
dc.identifierhttps://arxiv.org/abs/astro-ph/0102006
dc.identifierhttp://arxiv.org/abs/astro-ph/0102006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/2440
dc.subjectAstrophysics
dc.titleIdentification of the 4486,4504A emission lines in O-type spectra
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