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Título

Understanding A-type supergiants. I, Ultraviolet and visible spectral atlas of A-type sypergiants

AutorVerdugo, Eva; Talavera, Antonio; Gómez de Castro, Ana Inés
Palabras claveAtlases
Stars
Supergiants
Fecha de publicación1999
EditorEDP Sciences
CitaciónAstronomy and Astrophysics - Supplement Series, 137, p. 351-362 (1999)
ResumenThis paper is the rst of a series whose aim is to perform a systematic study of A-type supergiant atmospheres and winds. Here we present a spectral atlas of 41 A-supergiants observed by us in high and medium resolution in the visible and ultraviolet. The atlas consists of pro les of the H , H , H , H , H , Ca II (H and K), Na I (D1 and D2), Mg II4481, Mg II [uv1] and Fe II [uv1, uv2, uv3, uv62, uv63, uv161] lines for 41 stars with spectral types ranging from B9 to A9 and luminosity classes Ia, Iab and Ib, and provides the basic data for a thoughtful study of these stars. The overall characteristics of the sample as well as the data reduction procedures are described. We also present some examples of spectral variability.
Versión del editorhttp://dx.doi.org/10.1051/aas:1999487
URIhttp://hdl.handle.net/10261/25918
DOI10.1051/aas:1999487
ISSN0365-0138 (print)
1286-4846 (online)
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