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The Infrared Period - 2.2/µm Magnitude Relation for RR Lyrae Stars

Published online by Cambridge University Press:  15 February 2018

A.J. Longmore
A.J. Longmore*
Affiliation:
Royal Observatory, Blackford Hill, Edinburgh, EH9 3HJ, Scotland

Abstract

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The observational and theoretical basis for the log P vs. K-mag relation is reviewed. The observed gradient in all well observed globular clusters agrees well with the theoretical prediction. An indistinguishable result is found for field RR Lyrae stars whose absolute magnitudes have been determined from infrared Baade-Wesselink analyses. A full reference list is given for the source of these magnitudes. Application of the results to find the distance to globular clusters and the Galactic Centre is discussed.

Type
Variable Stars as Distance Indicators
Information
International Astronomical Union Colloquium , Volume 139: New Perspectives on Stellar Pulsation and Pulsating Variable Stars , 1993 , pp. 21 - 29
Copyright
Copyright © Cambridge University Press 1993

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