A revision to the absolute magnitudes of RR Lyrae stars from the Baade-Wesselink method

Details A revision to the absolute magnitudes of RR Lyrae stars from the Baade-Wesselink method A revision to the absolute magnitudes of RR Lyrae stars from the Baade-Wesselink method

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...284l..16f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 284, no. 1, p. L16-L18

Astronomy and Astrophysics

Astrophysics

52

Metallicity, Stellar Luminosity, Stellar Magnitude, Stellar Spectra, Variable Stars, Cross Correlation, Magellanic Clouds, Radial Velocity, Stellar Models, Stellar Oscillations

Scientific paper

It is argued that the zero-point from the recent Baade-Wesselink analyses of RR Lyrae stars is 0.07 mags too faint due to an inappropriate value of the p factor having been used (this factor corrects the observed pulsation velocity to the true pulsation velocity). Adopting this brighter zero-point brings the Baade-Wesselink calibration of the RR Lyrae Absolute Magnitude - Metallicity relation into closer agreement with theory and also the Baade-Wesselink RR Lyrae distance modulus to the Large Magellanic Cloud (LMC) into closer agreement with other distance indicators.

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