Delta-S metal abundances of field RR Lyrae stars

Details Delta-S metal abundances of field RR Lyrae stars Delta-S metal abundances of field RR Lyrae stars

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102..124s&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 102, Feb. 1990, p. 124-130.

Astronomy and Astrophysics

Astronomy

21

Blue Stars, Giant Stars, Metallicity, Stellar Oscillations, Variable Stars, Abundance, Line Spectra, Spectral Line Width, Stellar Magnitude, Stellar Spectra

Scientific paper

New Delta S metallicity mesurements have been obtained for 20 field RR Lyr stars which have no prior measurements or for which only uncertain values have been available. Revised values are presented for three stars observed by Preston (1959). SW Dra, which has sometimes been employed in calibrating the RR Lyr absolute magnitude-metallicity relation, is probably about 0.7 more metal poor in Fe/H than was found in some prior studies.

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