AGB Variables as Distance Indicators
arXiv:astro-ph/0309369
Abstract
Evidence for the existence of Mira Period-Luminosity relations is reviewed including recent work on Miras with thick circumstellar shells. The calibration of the relation at K is discussed in detail. The nature of variables deviating from the PL relation and possible metallicity effects are also discussed.
8 pages, to appear in "Variable Stars in the Local Group" (IAU Colloqium 193) ASP Conf. Ser