Studies on the P-branch spectral lines of rovibrational transitions of diatomic system |
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Authors: | Sun Weiguo Fan Qunchao Li Huidong Feng Hao |
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Institution: | a School of Physics and Chemistry, Research Center for Advanced Computation, Xihua University, Chengdu 610039, China;b Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China |
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Abstract: | An analytical formula is used to predict the accurate P-branch spectral lines of rovibrational transitions for diatomic systems. The formula is derived from elementary expression of molecular total energy by taking multiple spectral differences. It is not only reproduces the known experimental transition lines by using a group of fifteen known experimental transition data, but also predicts the accurate spectral lines that may not be available experimentally. The P-branch emission spectra of the (0,1), (0,2) and (0,3) bands of the B(2)∑(+)→X(2)∑(+) system in the (12)C(17)O(+) molecular ion are studied, and correct values of the unknown spectral lines up to J=80.5 for each band are predicted using the formula. |
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Keywords: | Spectral line Emission spectrum Rovibrational transition 12C17O+ Diatomic molecule |
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