Table 2: Parameters of the Fe  II line emission formation derived from the SAC curves.
Object ${\partial{Y}}/{\partial{X}}$ $\tau_{\rm o}$ $T_{\rm ex}$ $V_{\rm o}$ $R_{\rm e}/R_*$ $R_{\rm H}/R_*$
  SAC   K km s-1 SAC j=1 j=0.5
HD 41335 -0.68 2.0 7600 182 2.0 2.8 7.8
HD 45725 -0.85 3.1 4500 245 4.2 2.3 5.3
HD 48917 -0.67 2.0 5000 193 2.3 1.5 2.3
HD 50013 -0.62 1.7 8800 153 1.1 2.0 3.8
HD 56139 -0.72 2.2 7000 94 1.7 1.4 2.1
HD 58978 -0.83 2.9 11 600 245 1.3 2.1 4.5
HD 63462 -0.94 4.3 13 300 247 * 2.5 6.0
HD 88661 -0.95 4.5 6000 216 1.5 1.6 2.6
HD 91465 -0.73 2.2 5500 207 2.8 2.0 3.8
HD 105435 -0.49 1.2 5900 169 2.2 2.3 5.3
HD 110335 -0.65 1.8 5400 196 1.9 2.3 5.3
HD 112091 -0.72 2.2 7100 153 1.1 3.0 9.0
HD 120991 -0.65 1.8 6500 63 1.8 1.8 3.4
HD 124367 -0.83 2.9 5300 226 3.0 2.5 6.4
HD 148184 -0.69 2.0 12 000 94 1.1 3.3 10.7
HD 157042 -0.65 1.8 6900 301 1.7 1.5 2.2
HD 158427 -0.61 1.7 6000 225 1.5 2.4 5.6
$\tau_{\rm o}$ = average optical depth of Fe  II lines in multiplet 38; $T_{\rm ex}$ = average excitation temperature of Fe  II lines; $V_{\rm o}$ = characteristic emission line width in velocity units; $R_{\rm e}/R_*$ = radius of the Fe  II line formation region derived with the SAC; $R_{\rm H}/R_*$ = radius derived with Huang's (1972) relation for optically thin lines.
*: $R_{\rm e}/R_*\approx(R/R_*)/\!\sqrt{\cos i}$ ( $R/R_*\approx1$, $i\sim90^{\rm o}$).
Note: HD 164284 has too tiny Fe  II emission lines to perform any reliable measurement.

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