The problem of the spectroscopic calibration of the photometric indices of metallicity

Details The problem of the spectroscopic calibration of the photometric indices of metallicity The problem of the spectroscopic calibration of the photometric indices of metallicity

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989pazh...15..236k&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 15, March 1989, p. 236-242. In Russian. In Russian.

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3

Astronomical Photometry, Disk Galaxies, Metallicity, Milky Way Galaxy, Computational Astrophysics, Cool Stars, Metallic Stars, Stellar Atmospheres, Ubv Spectra, Ultraviolet Radiation

Scientific paper

It is shown that the dispersion of the metallicity of Galactic disk stars determined from an Fe/H concentration compilation (Cayrel et al., 1985) is, for the most part, of methodic origin and does not characterize the true Fe/H concentration dispersion. An analysis of homogeneous series of spectroscopic metallicity determinations makes it possible to assume that the true cosmic dispersion of the metallicity is of the order of 0.1 dex. The dispersion of the metallicity index in the uvby, beta system does not reflect the real variations of the metallicity for disk stars.

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