RT Journal Article
T1 Understanding A-type supergiants - I. Ultraviolet and visible spectral atlas of A-type supergiants
A1 Verdugo, Eva
A1 Talavera, A.
A1 Gómez De Castro, Ana Inés
AB This paper is the first 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 asd ultraviolet. The atlas consists of profiles of the H alpha, H beta, H gamma, H delta, H epsilon, 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.
PB EDP Sciences
SN 0365-0138
YR 1999
FD 1999-06
LK https://hdl.handle.net/20.500.14352/57548
UL https://hdl.handle.net/20.500.14352/57548
LA eng
DS Docta Complutense
RD 9 abr 2025