Distribution and Corrlation of Age, Abundance, and Motion of Lower Main Sequence Stars

Details Distribution and Corrlation of Age, Abundance, and Motion of Lower Main Sequence Stars Distribution and Corrlation of Age, Abundance, and Motion of Lower Main Sequence Stars

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aj....111..466e&link_type=abstract

Astronomical Journal v.111, p.466

Astronomy and Astrophysics

Astronomy

23

Solar Neighborhood, Stars: Abundances, Stars: Kinematics

Scientific paper

A sample of lower main sequence stars within 14 pc of the sun, with abundances determined from main sequence displacement and ages from surface fluxes of Ca II, yields (1) nine probable pre-main-sequence stars, (2) a preliminary evaluation of the change of zero point of the lower main sequence, in the (M1,R-I) plane, as a function of [Fe/H], (3) a relatively clear isolation of young and old disk stars in the (U, V) velocity plane, and (4) a rough correlation of [Fe/H] with age that shows a very slow decrease in both the mean abundance and the abundance range with increasing age.

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