Relations between Spectral Characteristics and Statistical Population Indices of Mira Type Variables

Details Relations between Spectral Characteristics and Statistical Population Indices of Mira Type Variables Relations between Spectral Characteristics and Statistical Population Indices of Mira Type Variables

Aug 1968

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1968ap%26ss...2..128i&link_type=abstract

Astrophysics and Space Science, Volume 2, Issue 1, pp.128-133

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

Line and band intensities of Mira type variables from Keenan's Catalogue (1966) and some other sources are discussed in relation to statistical population indices characterizing positions and motions of these stars. Residual intensity estimates of Ca 4226, Cr 4254, TiO, VO, ScO, YO prove to be stronger in population I Miras, whereas Hδ em line is definitely stronger in population II stars. The coefficient of correlation between residual line or band intensity and the partial statistical population index, depending principally on the star distance to the galactic plane, grows with increasing mass number of the corresponding element.

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