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Session 67 - Stars: Evolution, Atmospheres, Intrinsic.
Display session, Thursday, June 11
Atlas Ballroom,
The hk index has been used as a metallicity indicator for RR Lyrae variable stars (Baird 1996, AJ, 112, 2132). Baird found a relationship between [Fe/H] and hk at a given (b-y). Evidence will be given that for (b-y) < 0.200, the \log g affects the [Fe/H]-hk relationship. Employing spectroscopic abundances of stars with published hk values and Kurucz models, a 3-D interpolation is used to determine [Fe/H] from (b-y), c_1 and hk values. The resulting [Fe/H], \log g and T_eff values for 11 \delta Scuti stars will be presented.
