All Tables

Table 1: Target levels of Ar XVII and their threshold energies (in Ryd).
Table 7: Comparison of effective collision strengths ( $\Upsilon$ ) for transitions among the lowest 7 levels of Ar XVII. ( $a{\pm }b \equiv$ $a\times$ 10 $^{{\pm }b}$ ). First row: Zhang & Sampson (1987), Second row: present results.
Table 8: Comparison of effective collision strengths ( $\Upsilon$ ) for some transitions of Ar XVII. ( $a{\pm }b \equiv$ $a\times$ 10 $^{{\pm }b}$ ).