Line strengths and updated molecular constants for the C2 Swan system

New rotational line strengths for the C-2 Swan system (d(3)Pi(g)-a(3)Pi(u)) have been calculated for vibrational bands with v' = 0-10 and v '' = 0-9, and J values up to J=34-96, using previous observations in 33 vibrational bands. Line positions from several sources were combined with the results from recent deperturbation studies of the v' = 4 and v' = 6 levels, and a weighted global least squares fit was performed. The updated molecular constants are reported. The line strengths are based on a recent ab initio calculation of the transition dipole moment function. A line list has been made available, including observed and calculated line positions, Einstein A coefficients and oscillator strengths (f-values). The line list will be useful for astronomers, combustion scientists and materials scientists who utilize C-2 Swan spectra. Einstein A coefficients and f-values were also calculated for the vibrational bands of the Swan system. (c) 2013 Elsevier Ltd. All rights reserved.