Metallicities from high-resolution spectra of 49 RR Lyrae variables
Accurate metallicities of RR Lyrae are extremely important in constraining period-luminosity-metallicity (PLZ) relationships, particularly in the near-infrared. We analyse 69 high-resolution spectra of Galactic RR Lyrae stars from the Southern African Large Telescope. We measure metallicities of 58 of these RR Lyrae stars with typical uncertainties
Gilligan, Christina K. et al.
Fecha de publicación:
6
2021