Table 2: Comparison of the abundances of ZNG 4 with the abundances of M 13 BHB and RGB stars.
Element ZNG 4 M 13/ J11 (BHB)* M 13/WF4-3485(BHB)* M 13/ L262 (RGB)* Mean
  $\rm [Fe/H]= -1.49$ $\rm [Fe/H]= -1.82$ $\rm [Fe/H]= + 0.02$ $\rm [Fe/H]= -1.61$ RGB abundances*
  $T_{\rm eff} = 8500$ K $T_{\rm eff}= 7681$ K $T_{\rm eff}= 12~750 $ K $T_{\rm eff}= 4160$ K in M 13
  log g= 2.5 log g= 3.1 log g= 4.1 log g= 0.50  
  [X/H] [X/H] [X/H] [X/H] [X/H]
He -0.55 <-0.26 -1.49 $\pm$ 0.17 ... ...
Na -1.28 ... ... -1.27 $\pm$ 0.11 -1.37 $\pm$ 0.04
Mg -1.51 -1.50 $\pm$ 0.16 -1.62 $\pm$ 0.14 -1.51 $\pm$ 0.14 -1.46 $\pm$ 0.03
Si -1.10 <-1.23 -1.43 $\pm$ 0.07 -1.16 $\pm$ 0.14 -1.30 $\pm$ 0.02
Ca -0.64 -1.72 $\pm$ 0.11 -1.66 $\pm$ 0.15 -1.39 $\pm$ 0.14 -1.34 $\pm$ 0.01
Sc -0.99 -1.63 $\pm$ 0.10 <+1.10 ... -1.67 $\pm$ 0.01
Ti -0.75 -1.32 $\pm$ 0.06 -0.53 $\pm$ 0.16 -1.30 $\pm$ 0.20 -1.32 $\pm$ 0.02
Cr -1.41 -1.71 $\pm$ 0.12 <-0.12 ... ...
Fe -1.49 -1.82 $\pm$ 0.10 +0.02 $\pm$ 0.20 -1.61 $\pm$ 0.10 -1.60 $\pm$ 0.01
Sr -2.19 -2.03 $\pm$ 0.10 <+1.75 ... ...
Y -1.20 <-0.97 <+2.92 ... -1.61 $\pm$ 0.04
Ba -1.21 -1.68 $\pm$ 0.10 <+3.26 ... -1.53 $\pm$ 0.05
* Abundances of M 13 BHB stars are from Behr (2000c) and abundances of M 13 RGB star are from Cavallo & Nagar (2000). In the last column, the mean abundances of elements from Na to Fe in M 13 RGB stars are from Kraft et al. (1997) and that of Y and Ba are from Armosky et al. (1994).


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