atomic data, ISM, abundances, ultraviolet, interstellar
New absolute atomic transition probability measurements are reported for 12 transitions in Cr II and two transitions in Zn II. These transition probabilities are determined by combining branching ratios measured by classical techniques and radiative lifetimes measured by time-resolved laser-induced fluorescence. The measurements are compared with branching fractions, radiative lifetimes, and transition probabilities in the literature. The 206 nm resonance multiplets in Cr II and Zn II are included in this work. These multiplets are very useful in determining the distribution of the elements in the gas versus grain phases in the interstellar medium.
Original Publication Citation
S. D. Bergeson and J. E. Lawler. Radiative lifetimes, branching rations, and absolute transition probabilities in CR II and Zn II. Astrophys. J. 408 (1), 382-388 (1993).
BYU ScholarsArchive Citation
Bergeson, Scott D. and Lawler, J. E., "Radiative Lifetimes, Branching Ratios, and Absolute Transition Probabilities in Cr II and Zn II" (1993). Faculty Publications. 1823.
American Astronomical Society
Physical and Mathematical Sciences
Physics and Astronomy
© 1993 American Astronomical Society. This article is the Version of Record published by the American Astronomical Society in Astrophysical Journal in 1993, available online at http://adsabs.harvard.edu/full/1993ApJ...408..382B
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