Branching Fractions and Oscillator Strengths for Fe II Transitions from the 3d 6( 5D)4p Subconfiguration

Abstract

view Abstract Citations (57) References (21) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Branching Fractions and Oscillator Strengths for Fe II Transitions from the 3d 6( 5D)4p Subconfiguration Bergeson, S. D. ; Mullman, K. L. ; Wickliffe, W. E. ; Lawler, J. E. ; Litzen, U. ; Johansson, S. Abstract New experimental branching fractions and transition probabilities are reported for 56 transitions in Fe II. The branching fractions are measured with a Fourier transform spectrometer and also with a high-resolution grating spectrometer on an optically thin hollow cathode discharge. Highly accurate experimental radiative lifetimes from the recent literature provide the normalization required to convert our branching fractions into absolute transition probabilities. Results are compared with experimental and theoretical values in the literature. Our new transition probabilities will establish the absolute scale for relative absorption oscillator strengths of vacuum ultraviolet lines measured using a new high-sensitivity absorption experiment at the University of Wisconsin. Publication: The Astrophysical Journal Pub Date: June 1996 DOI: 10.1086/177391 Bibcode: 1996ApJ...464.1044B Keywords: ATOMIC DATA; ISM: ABUNDANCES; ULTRAVIOLET: GENERAL full text sources ADS |