WG1 Index: WG1 Index

Energy-Level Analyses, Wavelengths and Line Classifications

The references cited in this section are mostly papers on original laboratory research; recent larger compilations are covered in another section. The references, ordered by atomic number and spectrum, are given in parentheses following the spectra notations. They are designated by the first letter of the first author's last name and a serial number; these designations precede the full citations in the reference list at the end of this report.

Li I (R5); Be I (K1); [N II] (B5, S3), N VI (E2); O VII (E2); Ne I (C1), Ne II (Q1); Al X (K2); [Si I] (B8), Si III (S1), Si XI (K4, K2); [P II] (B6); [S I] (B9), S VIII (B1), S XIII (K2), S XV (H1); Ar II (P2, Q2), Ar IV (B4), Ar X (B2), Ar XV (K2); K II (V1); Ca III (V1); Ti XIII (J1); Fe I (N2, N3, J2, B7), Fe II (N1, B3), Fe III (E1), Fe VI (A1), Fe XXIV (R3); Co I (P1), Co VII (R6); Ni I (L2), Ni XXIV (M1); Zr III (R4); Pd II (L1); Dy III (S2); Er I (K3); Pt III (R1); Au II (R2), Au III (W2), Au IV (W1), U II (B10).

The references for elements heavier than $Ni\; ($Z$>$28) are limited to the first three or four spectra only, these data being of interest for solar and/or stellar spectroscopy, especially for chemically peculiar stars. The references for the lighter elements are also incomplete, the selection being limited to those of highest astrophysical interest. The data in a number of the references include and/or supersede all or most of the previously available energy-level and wavelength data for the indicated spectrum; such references include those for Be I (a compilation), Si XI (K1), S VIII, Ar IV, Ti III, Fe I (N2), Fe XXIV, Co I, Ni I, Dy III, Pt III, and Au II. In a paper not cited above, Kelly and Lacy (1995) give accurate wavenumbers for fine-structure transitions in nine spectra $([Ne$V] to $[Fe$II]) as determined from astronomical observations in the mid-infrared region. With regard to the iron-group elements, laboratory work is now underway on Ti II, V I, Cr III, Mn II, Fe II, Fe III, Fe V, Fe VI, and Co II; much of this research is being carried out at the University of Lund, Sweden, with additional work at Imperial College, London (Fe III and Co II), the Universities of Liège and Mons-Hainaut (V I), and the Observatoire de Paris (Mn II).

WG1 Index: WG1 Index