The spectrum of Ge II has been remeasured from 600 to 10000 Å. The analysis has led to the calculation of m any very accurate Ritz standards in the vacuum region. The doublet series are less perturbed than in Si II but auto-ionization is more severe. Structures up to 4s4p4f have been identified, but they are incomplete. Intersystem lines are frequent.
No takes yet. Share an insight, caveat, or question.
A. G. Shenstone (1963) studied this question.