Free Access

Table 1

Observed forbidden lines.

Element χion λvacuum λair Lower Upper g1 g2 Tex A21 ncr Number of detections
(eV) (nm) (nm) level level (K) (s-1) (cm-3) Lupus σ Ori

O i 0 557.89 557.7339 5 1 48 619 1.26 1.0e+8 28 4
O i ′′ 630.20 630.0304 5 5 22 830 5.6e-3 1.8e+6 31 7
O i ′′ 636.55 636.3776 3 5 22 830 1.8e-3 1.8e+6 25 5
O ii 13.618 372.98 372.8815 4 4 38 574 2.0e-5 3.3e+3 3 4
O ii ′′ 372.71 372.6032 4 6 38 603 1.8e-4 3.8e+3 9 3
O ii ′′ 732.22 731.89 4 6 58 224 9.9e-2 1.3e+7 2 1
O ii ′′ 733.17 732.97 6 2 58 121 8.7e-2 2.2e+6 2 1
S ii 10.360 407.75 407.6349 4 2 35 430 7.7e-2 1.9e+6 8 2
S ii ′′ 406.98 406.8600 4 2 35 354 1.9e-1 2.6e+6 21 5
S ii ′′ 671.83 671.644 4 6 21 416 2.0e-4 1.7e+3 5 3
S ii ′′ 673.27 673.081 4 4 21 370 6.8e-4 1.6e+4 11 3
N i 0 519.93 519.7902 4 4 27 673 2.0e-5 2.2e+3 11 1
N i ′′ 520.17 520.0257 4 6 27 660 7.6e-6 1.2e+3 1 1
N ii 14.534 654.99 654.805 3 5 22 037 9.8e-4 8.5e+4 1 2
N ii ′′ 658.53 658.345 5 5 22 037 2.9e-3 8.5e+4 13 2

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.