One-electron spectrum of singly ionized ytterbium (Yb ii)

The spectrum produced by the hollow-cathode discharge was measured from 2107 to 1377 Å. With these new data and the previously published observations of Yb ii at longer wavelengths, new 4f14nl series terms were found, including 10s, 7p, 7–11d, 5–14f, and 5–6g. A value of 98 269(50) cm−1 was deduced for the ionization energy.