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Chin. Phys. B, 2013, Vol. 22(7): 073302    DOI: 10.1088/1674-1056/22/7/073302

Global analysis of the Comet-tail system of 12C16O+

Shao Xu-Pinga, Zhao Mina, Yang Xiao-Huaa b
a School of Science, Nantong University, Nantong 226007, China;
b State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
Abstract  A global analysis of the ro-vibrational spectra of 19 bands in the comet-tail (A2Πi-X2Σ+) system of the 12C16O+ cation is presented, and the precise molecular constants of the vibrational levels involved are obtained via a weighted nonlinear least-squares fitting procedure. Furthermore, the resultant precise equilibrium molecular constants enable us to achieve accurate Rydberg-Klein-Rees (RKR) potential curves for both the A and X states, yielding the accurate Franck-Condon factor and band origin of each band in this system.
Keywords:  CO+      molecular constants      comet-tail (A2Πi-X2Σ+) system     
Received:  14 November 2012      Published:  01 June 2013
PACS:  33.20.-t (Molecular spectra)  
  33.15.Mt (Rotation, vibration, and vibration-rotation constants)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11034002), the State Key Program for Basic Research of China (Grant No. 2011921602), the Natural Science Program of Nantong University, China, the State Key Laboratory of Precision Spectroscopy, China, and Qing Lan Project, China.
Corresponding Authors:  Yang Xiao-Hua     E-mail:;

Cite this article: 

Shao Xu-Ping, Zhao Min, Yang Xiao-Hua Global analysis of the Comet-tail system of 12C16O+ 2013 Chin. Phys. B 22 073302

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