Abstract
We present infrared (JHK) light curves and radial velocity curves for four southern hemisphere RRab Lyraes (WY Ant, W Crt, RV Oct and BB Pup) and an infrared light curve for one RRc Lyrae (AU Vir). Absolute magnitudes are determined for the RRab stars, using a combination of the infrared flux method and the Baade-Wesselink method. Including these four stars, there are now 29 RR Lyraes that have been analysed, using these, or similar, methods. The best-fitting lines to these stars are = 0.21 (± 0.05)[Fe/H] + 1.04(± 0.10) and = −2.95(± 0.10) log P − 1.07 (± 0.10), where the quoted errors are, we believe, realistic rather than formal or internal
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