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

Details Understanding A-type supergiants. I. Ultraviolet and visible spectral atlas Understanding A-type supergiants. I. Ultraviolet and visible spectral atlas

Jun 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26as..137..351v&link_type=abstract

Astronomy and Astrophysics Supplement, v.137, p.351-362

Astronomy and Astrophysics

Astrophysics

16

Atlases, Line: Profiles, Stars: Supergiants, Ultraviolet: Stars

Scientific paper

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 and ultraviolet. The atlas consists of profiles of the Hα , Hβ , Hγ , Hdelta , Hepsilon , 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. Figures 1-3 are only available in electronic form at the http://www.edpsciences.com} of A-type supergiants\fnmsep\thanks{Based on observations made with the INT and JKT telescopes operated on the island of La Palma by the RGO in the Spanish Observatorio del Roque de Los Muchachos of the Instituto de Astrofisica de Canarias, with the 2.2~m telescope at Calar Alto Observatory, Spain, with the Bernard Lyot 2~m telescope at Pic Du Midi Observatory, France and observations collected at the European Southern Observatory at La Silla, Chile.

Affiliated with

Also associated with

No associations

Rating

Understanding A-type supergiants. I. Ultraviolet and visible spectral atlas does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Understanding A-type supergiants. I. Ultraviolet and visible spectral atlas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Understanding A-type supergiants. I. Ultraviolet and visible spectral atlas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1495230