کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5428843 | 1508691 | 2013 | 10 صفحه PDF | دانلود رایگان |
New rotational line strengths for the C2 Swan system (dÎ g3-aÎ u3) have been calculated for vibrational bands with vâ²=0-10 and vâ³=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 vâ²=4 and vâ²=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 C2 Swan spectra. Einstein A coefficients and f-values were also calculated for the vibrational bands of the Swan system.
⺠Line positions from several previous studies of the C2 Swan system are combined. ⺠Molecular constants have been recalculated including vâ²=4 and vâ²=6 perturbations. ⺠Rotational line intensities are calculated as Einstein A and f-values. ⺠Vibrational band Einstein Avâ²vâ³ and fvâ²vâ³ values are calculated. ⺠We give a line list up to vâ²=10, vâ³=9 with intensities for obs. and calc. lines.
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 124, July 2013, Pages 11-20