Are WNL stars tracers of high metallicity?

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dc.creatorGräfener, G.
dc.creatorHamann, W. -R.
dc.date2006-09-25
dc.date.accessioned2026-07-07T07:23:20Z
dc.date.available2026-07-07T07:23:20Z
dc.descriptionWe present new atmosphere models for Wolf-Rayet stars that include a self-consistent solution of the wind hydrodynamics. We demonstrate that the formation of optically thick WR winds can be explained by radiative driving on Fe line opacities, implying a strong dependence on metallicity (Z). Z-dependent model calculations for late-type WN stars show that these objects are very massive stars close to the Eddington limit, and that their formation is strongly favored for high metallicity environments.
dc.description4 pages, 3 figures, to appear in proc "Metal Rich Universe" (ed. G. Israelian). CUP style file included
dc.identifierhttps://arxiv.org/abs/astro-ph/0609672
dc.identifierhttp://arxiv.org/abs/astro-ph/0609672
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/115945
dc.subjectAstrophysics
dc.titleAre WNL stars tracers of high metallicity?
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