1201.1991 (L. Szabados et al.)

Problems and possibilities in fine-tuning of the Cepheid P-L relationship    [PDF]

L. Szabados, P. Klagyivik

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.

View original: http://arxiv.org/abs/1201.1991