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Accurate Lifetimes and Absolute Transition Rates for Ultraviolet Transitions From 3d5 (4G) 4p and 3d5 (4P) 4p levels in Mn II

Published

Author(s)

R Kling, R Schnabel, Ulf Griesmann

Abstract

A novel laser-induced fluorescence technique was used to measure lifetimes of 14 3d5 (4G) 4p and 3d5(4P) 4p levels in the Mn+ ion. Branching fractions for electric dipole transitions from these levels were measured with a vacuum ultraviolet Fourier transform spectrometer using a hollow-cathode lamp and a Penning discharge source. Base on these new measurements, absolute electric dipole transition rates for about 170 spectral lines in the ultraviolet and vacuum ultraviolet were determined. The uncertainty of the transition rates is less than 5% for the strong transitions.
Citation
Astrophysical Journal Supplement Series
Volume
134
Issue
No. 1

Keywords

f-values, lifetimes, manganese, Mn **, transition rates

Citation

Kling, R. , Schnabel, R. and Griesmann, U. (2001), Accurate Lifetimes and Absolute Transition Rates for Ultraviolet Transitions From 3d<sup>5</sup> (<sup>4</sup>G) 4p and 3d<sup>5</sup> (<sup>4</sup>P) 4p levels in Mn II, Astrophysical Journal Supplement Series (Accessed April 24, 2024)
Created May 1, 2001, Updated February 17, 2017