Table 1
Energy levels (in cm−1) relative to the ground state for the 250 lowest levels of Fe XVIII.
Index | Configuration | Term | EemuCI | ΔEfullCI | ΔENIST | ΔEZanna | ΔEJonauskas | ΔENahar | ΔESi |
---|---|---|---|---|---|---|---|---|---|
1 | 2p−1 | 2P3∕2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
2 | 2p−1 | 2P1∕2 | 102 506 | 0 | −73 | −73 | 443 | −4444 | −118 |
3 | 2s−1 | 2S1∕2 | 1 076 297 | 0 | 11 595 | 11 697 | −3297 | 1793 | 11 661 |
4 | 2p−23s1 | 4P5∕2 | 6 218 877 | −91 | −3123 | −3123 | 12 105 | −13336 | −1576 |
5 | 2p−23s1 | 2P3∕2 | 6 245 240 | −89 | −2860 | −2810 | 10 413 | −14133 | −2249 |
6 | 2p−23s1 | 4P1∕2 | 6 297 661 | −103 | −12539 | −3539 | 12 070 | −13058 | −1860 |
7 | 2p−23s1 | 4P3∕2 | 6 315 272 | −88 | −2628 | −2628 | 11 743 | −14574 | −1913 |
8 | 2p−23s1 | 2P1∕2 | 6 339 533 | −86 | −3067 | −3067 | 9912 | −15344 | −2765 |
9 | 2p−23s1 | 2D5∕2 | 6 399 132 | −82 | −868 | −2068 | 11 147 | −17428 | −210 |
10 | 2p−23s1 | 2D3∕2 | 6 402 771 | −86 | −1029 | −1029 | 10 887 | −17553 | −427 |
Notes. The present energies from Emu CI calculations and full CI calculations are compared with NIST values (Kramida et al. 2019), CHIANTI database (Del Zanna et al. 2015), MCDHF calculations (Jonauskas et al. 2004; Si et al. 2016), and R-matrix calculations (Nahar 2006). ΔEx = EemuCI − Ex. This table is available in its entirety at the CDS.
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.