Light and color curves of six field RR Lyrae variable stars

Alicia S. Day, Andrew C. Layden, D. W. Hoard, Gabriel Brammer, Kathy Cooksey, Jorge Cuadra, Shadrian Holmes, Erika Labbe, Rodolfo Montez

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We present light curves in the B, V, and I passbands for six field RR Lyrae stars. We derive the stars' intensity-mean magnitudes, light amplitudes, and colors at minimum light. We compare the latter with measurements from other variables and discuss the use of (V-I) color at minimum light as a tool for measuring interstellar reddening. From 15 stars, we find the mean dereddened RR Lyrae color at minimum light to be (V-I)0 = 0.57 mag. The rms scatter of 0.025 mag indicates the precision of this value over a wide range of metallicities and pulsation periods.

Original languageEnglish
Pages (from-to)645-649
Number of pages5
JournalPublications of the Astronomical Society of the Pacific
Issue number796
StatePublished - 2002
Externally publishedYes


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