The Globular Cluster NGC 5286 II Variable Stars

On a New Theoretical Framework for RR Lyrae Stars II Mid infrared Period–Luminosity–Metallicity Relations On a New Theoretical Framework for RR Lyrae Stars II Mid

© Copyright 2008: Instituto de Astronomía, Universidad Nacional Autónoma de

The mean values of the physical parameters determined for the RR Lyrae stars place the cluster pre- cisely into the sequences Oosterhoff type —metallicity and metallicity—

However, it should be noted that the long periods that we have measured for the RRab stars see below are extremely unusual for field RR Lyrae of moderately high metallicity, but not

2003, the average physical parameters of the c- and ab-type RR Lyrae, as derived on the basis of Fourier decomposition of their light curves, can also provide a useful consistency

We also performed PSF photometry on these data, using the DAOPHOT package Stetson 1987 in IRAF.1 This photometry was used to construct a CMD, generate independent light curves using

Standard V and instrumental i light curves of the RRab stars in NGC 6333 phased with the periods listed in Table 3.. The blue points represent V data from Clement &