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Astron. Astrophys. 328, 752-755 (1997)

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Branching ratio for the [FORMULA] - [FORMULA] inter-system resonance multiplet in P II

J.J. Curry and J.E. Lawler

Department of Physics, University of Wisconsin,1150 University Avenue, Madison, Wisconsin 53706, USA

Received 20 June 1997 / Accepted 1 August 1997


The P II inter-system multiplet, [FORMULA] at [FORMULA] nm and 219.556nm, have been observed in emission from a low-pressure inductively-coupled plasma source. The measured branching ratio, [FORMULA], is in agreement with recent ab initio calculations. Absolute transition probabilities, [FORMULA] s-1 and [FORMULA] s-1, are determined by combining the measured branching ratio with the previously measured lifetime of the [FORMULA] metastable level.

Key words: atomic data – methods: laboratory

Send offprint requests to: curry@tristan.physics.wisc.edu


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© European Southern Observatory (ESO) 1997

Online publication: March 26, 1998