On the absolute magnitude of RR Lyrae stars - UU Ceti, RV Phoenicis, and W Tucanae

Details On the absolute magnitude of RR Lyrae stars - UU Ceti, RV Phoenicis, and W Tucanae On the absolute magnitude of RR Lyrae stars - UU Ceti, RV Phoenicis, and W Tucanae

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...396..219c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 396, no. 1, Sept. 1, 1992, p. 219-237.

Astronomy and Astrophysics

Astrophysics

48

Light Curve, Lyra Constellation, Stellar Magnitude, Stellar Oscillations, Variable Stars, Infrared Photometry, Metallicity, Radial Velocity

Scientific paper

IR JHK light curves are presented for the RRab Lyrae stars UU Ceti, RV Phoenicis, and W Tucanae. These stars have similar periods and metallicities data, together with BVRI photometry and CORAVEL radial velocity data and Walraven photometry are used to derive absolute magnitudes for the stars using two formulations of the Baade-Wesselink method: (1) the infrared flux version and (2) the surface brightness version. The two methods are directly compared and their respective advantages and shortcomings are discussed. Finally, a comparison is made with previous results on the absolute magnitude of RR Lyrae variables.

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