Free Access

Table 1:

Strong Fe I lines added to the line list of Ramírez et al. (2007) for the 3D calculation of synthetic line profiles.
Wavelength $\log gf^{{a}}$ EP $\sigma^{{b}}$ $\alpha^{{b}}$
(Å)   (eV) (AU)  
5741.85 -1.67 4.26 725 0.232
6252.56 -1.77 2.40 326 0.245
6335.32 -2.18 2.20 275 0.261
6411.65 -0.72 3.65 820 0.247
6430.85 -1.95 2.18 272 0.257
6677.99 -1.42 2.69 313 0.268
a Transition probabilities are from the laboratory measurements of the Oxford group (e.g., Blackwell et al. 1976). b The last two columns are the van der Waals damping constants obtained by Barklem et al. (2000); $\sigma $ is the broadening cross section for an atom-perturber relative velocity v0=106 cm s-1, given in atomic units ($1~\mathrm{AU}=2.8\times10^{-17}~\mathrm{cm}^2$), and $\alpha$ the velocity parameter, which is related to the temperature dependence of the cross-section ($\sigma\propto T^{(1-\alpha)/2}$).

Source LaTeX | All tables | In the text

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.