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High resolution emission spectroscopy of the AП-XΣ (red) system of CN |
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| Authors: | RS Ram L Wallace |
| Institution: | a Department of Chemistry, University of Arizona, Tucson, AZ 85721, USA b Kitt Peak National Observatory, National Optical Astronomy Observatories, Tucson, AZ 85726, USA c Department of Chemistry, University of Waterloo, Waterloo, Ont., Canada N2L 3G1 d Department of Chemistry, University of York, Heslington, York YO10 5DD, UK |
| Abstract: | The emission spectra of the A2П-X2Σ+ (red) system of 12C14N have been reinvestigated in the 3500-22 000 cm−1 region at high resolution using a Fourier transform spectrometer. In total, spectra of 63 bands involving vibrational levels up to v′ = 22 of the A2П state and v″ = 12 of the X2Σ+ ground state have been measured and rotationally analyzed providing an improved set of spectroscopic constants. The present measurements of the Δv = −2 sequence bands of 12C14N and those of 13C14N from Ram et al. (2010) 36] allow for a much improved identification of these two isotopologues in the near infrared spectra of carbon stars. |
| Keywords: | Spectroscopy Electronic spectra Free radicals Solar spectra Carbon stars |
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