Table 2: Results of the fit to the observed Li I doublet of HD 74000.
Type of fit 6Li/7Lia Shiftb Broadening Goodness of fitc
  %   ${\rm m~ s^{-1}}$   ${\rm km~ s^{-1}}$  
Empirical Prof. -2.8 371 5.81 0.304
Empirical Prof. 6.3 0d 5.15 0.002
Empirical Prof. 0d 372 5.77 0.316
Symmetr. Prof. 2.3 412 5.92 0.272
1D LTE 2.4 394 5.80 0.233
3D LTEe 0.2 290 4.29 0.324
3D NLTEe 0.6 82 2.66 0.303
a A negative value indicates that the fitted 6Li line is emission. b This is the fitted shift necessary to match the observed profile, note that while the empirical and 1D profiles have a zero intrinsic shift the 3D profiles have +100  ${\rm m~ s^{-1}}$  and +300  ${\rm m~ s^{-1}}$ convective shifts respectively. c Defined as the probability of obtaining a $\chi^2$ as high as the one observed. d Fixed. e Rotationally broadened by 1   ${\rm km~ s^{-1}}$.

Source LaTeX | All tables | In the text