Keywords
atomic data, ISM, abundances, ultraviolet, interstellar
Abstract
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.
https://scholarsarchive.byu.edu/facpub/1823
Document Type
Peer-Reviewed Article
Publication Date
1993
Permanent URL
http://hdl.lib.byu.edu/1877/3775
Publisher
American Astronomical Society
Language
English
College
Physical and Mathematical Sciences
Department
Physics and Astronomy
Copyright Status
© 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
Copyright Use Information
http://lib.byu.edu/about/copyright/