Calibrated CCD-uvby photometry of field stars in the Galaxy

Details Calibrated CCD-uvby photometry of field stars in the Galaxy Calibrated CCD-uvby photometry of field stars in the Galaxy

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...238...75j&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 238, no. 1-2, Nov. 1990, p. 75-82.

Astronomy and Astrophysics

Astrophysics

8

Charge Coupled Devices, Dwarf Stars, Milky Way Galaxy, Star Distribution, Stellar Spectrophotometry, Ubv Spectra, Calibrating, Galactic Structure, Hertzsprung-Russell Diagram, Metallicity, Stellar Composition

Scientific paper

It is shown that the combination of a UV-sensitive CCD and a well-calibrated photometric system makes it possible to determine metallicity and distance of individual dwarf stars to distances beyond 5 kpc with reasonable accuracy, allowing the chemical composition and density variation of the various populations to be studied. Estimates of (Fe/H) and M(V) are derived for dwarf stars brighter than V roughly 16 m with accuracies of 0.4 dex and 0.5 m, respectively. For stars as faint as V roughly 17 m, the obtained accuracies are 0.6 dex and 0.9 m, respectively.

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