Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26as..104..429o&link_type=abstract
Astronomy and Astrophysics Suppl. 104, 429-472 (1994)
Astronomy and Astrophysics
Astrophysics
59
Galaxy: Evolution, Solar Neighbourhood, Stars: Late-Type, Stars: Fundamental Parameters, Survey: Techniques: Photometric
Scientific paper
Four-colour photometry of potential dwarf stars of types G0 to K2, selected from the Michigan Spectral Catalogues (Vol. 1-3), has been carried out. The results are presented in a catalogue containing 4247 uvby observations of 3900 stars, all south of δ = -26deg. The overall internal rms errors of one observation (transformed to the standard system) of a program star in the interval 8.5 < V < 10.5 are 0.0044, 0.0021, 0.0039, and 0.0059, respectively, in V, b-y, m_1_ , and c_1_. The purpose of the catalogue, combined with earlier catalogues, is to allow selection of a large, complete, volume-limited sample of G- and K-type dwarfs, investigate their metallicity distribution, and compare it to predictions of various models of galactic chemical evolution. Future papers in this series will discuss these subjects.
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