The red giant metallicity function

Details The red giant metallicity function The red giant metallicity function

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985azh....62..847m&link_type=abstract

(Astronomicheskii Zhurnal, vol. 62, Sept.-Oct. 1985, p. 847-853) Soviet Astronomy (ISSN 0038-5301), vol. 29, Sept.-Oct. 1985, p.

Astronomy and Astrophysics

Astronomy

2

Metallicity, Red Giant Stars, Stellar Composition, Astronomical Photometry, Distribution Functions, Stellar Evolution

Scientific paper

For a sample of red giants comprising about 2000 stars the distributions of metallicity [Fe/H] are given. It is shown that they cannot be described by a gaussian one in the sense that the normal-law hypothesis turns out to be statistically insignificant, if the alternative is a hypothesis that the distribution is a sum of two normal curves. The center of the distributions of giants in both galactic poles is found to demonstrate a statistically significant gap similar to the one found earlier for the late main-sequence stars. The implications of the metallicity distribution properties for the problems of the chemical evolution of the galactic disk are discusssed.

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