Table 8
Number of duplicates found in NIST and VALD-based repositories.
| Repository | Initial matches | Final matches |
|---|---|---|
| BRASS | 3589 | 2982 |
| VALD3 | 6351 | 3394 |
| NIST | 388 | 0a |
Notes. Initial matches are based purely on identical upper and lower configurations and upper and lower J-values for a given ion. The literature checked matches have been cleaned of potential hyperfine, isotopic, and forbidden E2–M1-pair transitions. (a) All NIST duplicates are lines with either an undesignated upper or lower energy level and so we cannot conclude they are duplicate transitions.
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.