Temperature, mass, and luminosity of RR Lyrae stars as functions of metallicity at the blue fundamental edge. 2
Aug, 1993Citations per year
Abstract: (ADS)
The calibration of the absolute magnitudes of average field RR Lyrae stars from the pulsation equation is sought by finding the relations between metallicity, period, and mass along the blue fundamental edge (BFE) on the basis of various types of observational data. It is shown in S93I that the Oosterhoff-Arp-Preston correlation of period and metallicity at the BFE is steep at -0.122 +/- 0.02. The determination is independent of reddening and of light curve amplitude. The (B-V) exp 0mag color of the bluest field RR Lyrae in the field star sample of Blanco (1992) is independent of metallicity over the range of (Fe/H) from 0 to -2.1.References(0)
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