Elemental abundance analyses with DAO spectrograms – XI. The early B stars Gamma Pegasi and Iota Herculis

Elemental abundance analyses with DAO spectrograms – XI. The early B stars Gamma Pegasi and Iota Herculis

This paper presents LTE analyses of two sharp-lined early B stars, γ Pegasi and ι Herculis, based on co-added IIaO and Reticon 2.4 Å mm−1 spectrograms of the photographic region. Most of the derived abundances are close to solar. Both stars have definite microturbulences which probably are related t...

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Veröffentlicht in:Monthly notices of the Royal Astronomical Society 1993-09, Vol.264 (1), p.63-70
Hauptverfasser: Pintado, Olga I., Adelman, Saul J.
Format: Artikel
Sprache:eng
Schlagworte:
Astronomy
Earth, ocean, space
Exact sciences and technology
Main-sequence: early-type stars (o and b)
Normal stars (by class): general or individual
Stars
stars: abundances
stars: early-type
stars: individual: γ peg
stars: individual: ι Her
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Zusammenfassung:This paper presents LTE analyses of two sharp-lined early B stars, γ Pegasi and ι Herculis, based on co-added IIaO and Reticon 2.4 Å mm−1 spectrograms of the photographic region. Most of the derived abundances are close to solar. Both stars have definite microturbulences which probably are related to the instability of their photo spheres.
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/264.1.63