Stellar Iron Abundances at the Galactic Center

  title={Stellar Iron Abundances at the Galactic Center},
  author={Solange V. Ram{\'i}rez and Kristen Sellgren and John S. Carr and Suchitra C. Balachandran and Robert D. Blum and Donald M. Terndrup and Adam Steed},
  journal={The Astrophysical Journal},
We present measurements of (Fe/H) for six M supergiant stars and three giant stars within 2.5 pc of the Galactic center (GC) and one M supergiant star within 30 pc of the GC. The results are based on high-resolution (j/*j \ 40,000) K-band spectra, taken with CSHELL at the NASA Infrared Telescope Facility. We determine the iron abundance by detailed abundance analysis, performed with the spectral synthesis program MOOG. The mean (Fe/H) of the GC stars is determined to be near solar, (Fe/H) \ ) 0… 
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