Transition Probabilities of Xe I and Xe II

Absolute transition probabilities of the stronger Xe I and Xe II lines between 3800 and 8400 {} are measured in emission. State variables of the shock-tube plasmas are determined by several independent methods. Accuracies for 25 neutral and 128 ionic A values are estimated to be (22-50)%. Experimental Xe I line strengths are compared with theoretical predictions. The Xe II results are examined for conformity with quantum-mechanical sum rules and are compared with lifetime data from the literature.