Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.145...61p&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 145, no. 1, June 1988, p. 61-115.
Astronomy and Astrophysics
Astrophysics
13
Cool Stars, Milky Way Galaxy, Stellar Composition, Stellar Spectrophotometry, Abundance, Galactic Evolution, Iron, Metallicity, Spectral Line Width, Stellar Atmospheres
Scientific paper
The authors present the detailed analysis of fourteen cool stars, nine of which have been associated by Eggen with four moving groups from the kinematics and the photometric properties; the five remaining stars are characterized by a large-spatial velocity. From the scatter of the chemical composition among the program stars belonging to a same group, the authors believe that the moving groups ζ Her, Wolf 630, and Kapteyn really exist, and that Groombridge 1830 does not. No peculiar abundance relative to iron is found except a possible relative overabundance of Ni for the most metal-poor stars in this sample. The results of the detailed analyses are discussed in terms of the chemical abundances of our Galaxy.
Foy Renaud
Proust Dominique
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