Problems and possibilities in fine-tuning of the Cepheid P-L relationship
arXiv:1201.1991 · doi:10.1007/s10509-012-0988-7
Abstract
Factors contributing to the scatter around the ridge-line period-luminosity relationship are listed, followed by a discussion how to eliminate the adverse effects of these factors (mode of pulsation, crossing number, temperature range, reddening, binarity, metallicity, non-linearity of the relationship, blending), in order to reduce the dispersion of the P-L relationship.
7 pages, 8 figures; accepted for publication in Astrophysics & Space Science