Sansonetti, J.
and Curry, J.
(2010),
Wavelengths, Transition Probabilities, and Energy Levels for the Spectra of Barium (Ba III through Ba LVI), J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=904125
(Accessed October 10, 2025)
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Wavelengths, Transition Probabilities, and Energy Levels for the Spectra of Barium (Ba III through Ba LVI)
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Abstract
Energy levels, with designations and uncertainties, have been compiled for the spectra of barium (Z=56) ions from doubly-ionized to hydrogen-like. Wavelengths with classifications, intensities, and transition probabilities are also tabulated. In addition, ground states and ionization energies are listed. For many ionization stages experimental data are available; however for those for which only theoretical calculations or fitted values exist, these are reported. There are a few ionization stages for which only a calculated ionization potential is available.Citation
J. Phys. & Chem. Ref. Data (JPCRD) -
Volume
39
NIST Pub Series
Pub Type
NIST Pubs
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Keywords
atomic spectra, barium, energy levels, ionization energy, transition probabilities, wave numbers, wavelength tables, wavelengths
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Created November 19, 2010, Updated November 14, 2018