V. Kaufman et Wc. Martin, WAVELENGTHS AND ENERGY-LEVEL CLASSIFICATIONS FOR THE SPECTRA OF SULFUR (S-1 THROUGH S XVI), Journal of physical and chemical reference data, 22(2), 1993, pp. 279-375
Wavelengths and their classifications have been compiled for the spect
ra of the atom and all positive ions of sulfur (Z = 16). The selection
s of data are based on the compilations of energy levels by Martin, Za
lubas, and Musgrove in 1990, with some updating from the more recent l
iterature. Wavelengths (or wavenumbers) calculated from the difference
s of the energy levels are given along with the observed values for al
l classified lines; these calculated wavelengths should in general be
more accurate than the observed values wherever the two values differ
significantly. Calculated wavelengths are also given for a number of l
ines that have not yet been observed, including some important forbidd
en transitions. The most complete data are given in separate tables fo
r the different spectra. No limitation has been imposed on the wavelen
gth range of the classified lines, except for the omission of x-ray tr
ansitions in the neutral atom. Two finding lists are also included, on
e for S I through S III and the other for S IV through S XVI.