[Fe/H] Relations For C-Type Rr Lyrae Variables Based Upon Fourier Coefficients
Globular clusters: general, Stars: abundances, Stars: variables: other
Monthly Notices of the Royal Astronomical Society
[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 of Earth Science
Original Publication Date
DOI of published version
Morgan, Siobahn M.; Wahl, Jennifer N.; and Wieckhorst, Rachel M., "[Fe/H] Relations For C-Type Rr Lyrae Variables Based Upon Fourier Coefficients" (2007). Faculty Publications. 2653.