Fundamental parameters and abundances of metal-poor stars : the SDSS standard BD +17 4708

  title={Fundamental parameters and abundances of metal-poor stars : the SDSS standard BD +17 4708},
  author={Ivan Ramirez and Carlos Allende Prieto and Seth Redfield and David L. Lambert},
  journal={Astronomy and Astrophysics},
The atmospheric parameters and iron abundance of the Sloan Digital Sky Survey (SDSS) spectrophotometric standard star BD +17 4708 are critically examined using up-to-date Kurucz model atmospheres, LTE line formation calculations, and reliable atomic data. We find $T_{{\rm eff}}=6141$  ± 50 K, $\log g=3.87$  ± 0.08, and ${\rm [Fe/H]}=-1.74$  ± 0.09. The line-of-sight interstellar reddening, bolometric flux, limb-darkened angular diameter, stellar mass, and the abundances of Mg, Si, and Ca are… 
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