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Table 5:

Abundance uncertainties of CoRoT-2.

Species 		$\Delta T_{\rm eff}$ $\Delta \log ~ g$ $\Delta \xi$ $\Delta W_{\lambda}$ $\left( \sum \sigma^2 \right)^{1/2}$ $\sigma_{\rm obs}$
$_{\rule{0pt}{8pt}}$ +70 K +0.12 +0.10 3 mÅ    
Fe  I 0.05 -0.01 -0.02 0.05 0.07 0.05
Fe  II -0.02 0.05 -0.02 0.06 0.08 0.07
Na  I 0.04 -0.02 -0.01 0.03 0.05 0.03
Mg  I 0.04 -0.03 -0.02 0.03 0.06 -
Al  I 0.02 -0.02 -0.01 0.03 0.04 -
Si  I 0.01 0.01 0.0 0.04 0.04 0.05
Ca  I 0.05 -0.02 -0.02 0.04 0.07 0.05
Sc  II 0.0 0.05 -0.02 0.05 0.07 -
Ti  I 0.08 0.0 -0.01 0.05 0.09 0.09
Cr  I 0.06 -0.01 -0.03 0.05 0.08 0.08
Mn  I 0.07 0.0 -0.01 0.05 0.09 -
Ni  I 0.05 0.0 -0.03 0.05 0.08 0.06
Zn  I 0.0 0.02 -0.03 0.05 0.06 -
Ba  II 0.02 0.03 -0.05 0.05 0.08 0.04
Li  I 0.06 0.00 0.01 - 0.06 0.05
O  I -0.03 0.07 0.00 - 0.08 0.10
S  I -0.05 0.05 0.00 - 0.07 0.09

Notes. The second column indicates the variation in the abundance caused by the variation in $T_{\rm eff}$. The other columns refer, respectively, to the variations caused by to $\log g$, $\xi_{\rm t}$, and $W_\lambda$. The sixth column indicates the combined rms uncertainty of the second to fifth columns. The last column indicates the observed abundance dispersion for those elements whose abundances were derived using more than two lines.


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