The absorption spectrum of Ba II has been studied for 350 ≤ Λ ≤ 1100 Å by the flash pyrolysis technique. 423 transitions have been observed. Several long series have been identified, converging to the 5<i>p</i><sup>5</sup> 6<i>s</i> and 5<i>p</i><sup>5</sup> 5<i>d</i> limits of Ba III.
© 1976 Optical Society of America
Randy A. Roig, "Absorption spectrum of Ba II in the vacuum ultraviolet," J. Opt. Soc. Am. 66, 1400-1405 (1976)