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Table 2

Improved energy measurements (cm-1) of several Na i levels.

Level Present work Other sources

7h 39 209.670 ± 0.015 [39 209.887 ± 0.002] (Dyubko et al. 1997)
6h 38 401.144 ± 0.012 [38 401.147 ± 0.002] (Dyubko et al. 1997)
6g 38 400.865 ± 0.015 [38 400.904 ± 0.002] (Dyubko et al. 1997)
38 387.266 ± 0.002 38 387.268 ± 0.002 (Martin & Zalubas 1981; Juncar et al. 1981)
38 387.252 ± 0.002 38 387.255 ± 0.002 (Martin & Zalubas 1981; Juncar et al. 1981)
38 012.022 ± 0.016 38 012.042 ± 0.002 (Martin & Zalubas 1981; Juncar et al. 1981)
37 297.622 ± 0.021 37 297.61 ± 0.02 (Risberg 1956)
5g 37 059.497 ± 0.011 37 059.54 ± 0.07 (Litzen 1970)
37 057.658 ± 0.007 37 057.65 ± 0.02 (Risberg 1956)
37 036.740 ± 0.013 37 036.772 ± 0.002 (Martin & Zalubas 1981; Juncar et al. 1981)
37 036.729 ± 0.010 37 036.752 ± 0.002 (Martin & Zalubas 1981; Juncar et al. 1981)
36 372.610 ± 0.013 36 372.618 ± 0.002 (Martin & Zalubas 1981; Juncar et al. 1981)
35 042.862 ± 0.006 35 042.85 ± 0.02 (Risberg 1956)
35 040.387 ± 0.006 35 040.38 ± 0.02 (Risberg 1956)
34 586.897 ± 0.007 34 586.92 ± 0.02 (Johansson 1961)
34 586.893 ± 0.005 34 586.92 ± 0.02 (Johansson 1961)
34 548.761 ± 0.002 34 548.764 ± 0.002 (Martin & Zalubas 1981; Juncar et al. 1981)
34 548.726 ± 0.003 34 548.729 ± 0.002 (Martin & Zalubas 1981; Juncar et al. 1981)
33 200.673 ± 0.003 33 200.673 ± 0.002 (Martin & Zalubas 1981; Juncar et al. 1981)
30 272.586 ± 0.002 30 272.58 ± 0.02 (Risberg 1956)
30 266.991 ± 0.003 30 266.99 ± 0.02 (Risberg 1956)
29 172.888 ± 0.002 29 172.887 ± 0.002 (Martin & Zalubas 1981; Juncar et al. 1981)
29 172.837 ± 0.003 29 172.837 ± 0.002 (Martin & Zalubas 1981; Juncar et al. 1981)
25 740.013 ± 0.002 25 739.999 ± 0.003 (Arqueros 1988)

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