Metal-Rich A-Type Supergiants in M31

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dc.creatorPrzybilla, Norbert
dc.creatorButler, Keith
dc.creatorKudritzki, Rolf-Peter
dc.date2006-11-02
dc.date.accessioned2026-07-07T07:30:38Z
dc.date.available2026-07-07T07:30:38Z
dc.descriptionWe discuss results of an exploratory non-LTE analysis of two metal-rich A-type supergiants in M31. Using comprehensive model atoms we derive accurate atmospheric parameters from multiple indicators and show that non-LTE effects on the abundance determination can be substantial (by a factor 2-3). The non-LTE analysis removes systematic trends apparent in the LTE approach and reduces statistical uncertainties. Characteristic abundance patterns of the light elements provide empirical constraints on the evolution of metal-rich massive stars.
dc.description4 pages, 2 figures, to appear in "The Metal Rich Universe" Conference Proceedings
dc.identifierhttps://arxiv.org/abs/astro-ph/0611044
dc.identifierhttp://arxiv.org/abs/astro-ph/0611044
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118469
dc.subjectAstrophysics
dc.titleMetal-Rich A-Type Supergiants in M31
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