On the chemical composition and age of Beta VIR

Details On the chemical composition and age of Beta VIR On the chemical composition and age of Beta VIR

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....65..427g&link_type=abstract

Astronomy and Astrophysics, vol. 65, no. 3, May 1978, p. 427-433. Research supported by the Deutsche Forschungsgemeinschaft.

Astronomy and Astrophysics

Astrophysics

11

Chemical Composition, Stellar Atmospheres, Stellar Evolution, Stellar Models, Galactic Clusters, Heavy Elements, Hydrostatics, Late Stars, Line Spectra, Protostars, Solar Temperature, Spectrum Analysis

Scientific paper

The F8V star Beta Vir is reanalyzed by means of a differential model atmosphere analysis. Taking into account the revision of Holweger's solar model and improved solar equivalent widths as measured from the Liege atlas, the final atmospheric parameters are given. A solar He/H ratio has been assumed. Evolutionary isochrones suggest a stellar age of approximately 3 billion years, in contrast to earlier investigations.

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