METALLICITY ANALYSIS OF MACHO GALACTIC BULGE RR0 LYRAE STARS FROM THEIR LIGHT CURVES

@article{Kunder2008METALLICITYAO,
  title={METALLICITY ANALYSIS OF MACHO GALACTIC BULGE RR0 LYRAE STARS FROM THEIR LIGHT CURVES},
  author={Andrea M. Kunder and Brian Chaboyer},
  journal={The Astronomical Journal},
  year={2008},
  volume={136},
  pages={2441-2452}
}
We present metallicities of 2690 RR0 Lyrae stars observed toward the MACHO Survey fields in the Galactic bulge. These [Fe/H] values are based upon an empirically-calibrated relationship that uses the Fourier coefficients of the light curve and are accurate to ±0.2 dex. The majority of the RR0 Lyrae stars in our sample are located in the Galactic bulge, but 255 RR0 stars are associated with the Sagittarius (Sgr) dwarf galaxy. We find that the RR0 Lyrae stars that belong to the Galactic bulge… 
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