Line Parameters of Methane and Deuterated Methane from 2 to 10 m
L. R. Brown (JPL, Pasadena, CA, USA), J. P. Champion, J. C. Hilico, M. Loete (Universite de Bourgogne, Dijon, France), A. Nikitin (LTS, ILTS, IAO, Tomsk, Russia), O. Ouardi (Universite de Bourgogne, Dijon, France), Vl. G. Tyuterev (GSMA,Faculte des Sciences, Reims, France)
The molecular line parameters for methane are being revised for the 2 to 10 m region. New developments in the application of quantum mechanical models now permit very complex spectral regions to be interpreted successfully. New calculations of line parameters are being done to create a database of over 200,000 vibration-rotation lines of methane arising from the ground state and from difference bands. The line intensities vary through seven orders of magnitude. In addition, the transitions of deuterated methane are being studied for the 3 to 9 m region.