Faculty Publications

[Fe/H] Relations For C-Type Rr Lyrae Variables Based Upon Fourier Coefficients

Document Type

Article

Keywords

Globular clusters: general, Stars: abundances, Stars: variables: other

Journal/Book/Conference Title

Monthly Notices of the Royal Astronomical Society

Volume

374

Issue

4

First Page

1421

Last Page

1426

Abstract

[Fe/H]-Φ31-P relations are found for c-type RR Lyrae stars in globular clusters. The relations are analogous to that found by Jurcsik & Kovács for field ab-type RR Lyrae stars, where a longer period correlates with lower metallicity values for similar values of the Fourier coefficient Φ31. The relations obtained here are used to determine the metallicity of field c-type RR Lyrae stars, those within ω Cen, the Large Magellanic Cloud and toward the galactic bulge. The results are found to compare favourably to metallicity values obtained elsewhere. © 2006 RAS.

Department

Department of Earth Science

Original Publication Date

2-1-2007

DOI of published version

10.1111/j.1365-2966.2006.11247.x

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