15min:
LINE INTENSITIES OF PHOSPHINE IN THE 10 µm REGION FOR PLANETARY SPECTRA ANALYSIS..

L. R. BROWN, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA; R. L. SAMS, Pacific Northwest National Laboratory, P.O. Box 999, Mail Stop K8-88, Richland, WA 99352, USA; I. KLEINER, C. COTTAZ, Laboratoire de Photophysique Moléculaire, Université Paris Sud, 91405 Orsay Cedex, France.

A preliminary study of the line intensities of phosphine PH3 in the 10µm region between 800 and 1300 cm-1 is reported. The objective is to provide a prediction for planetary spectra studies of the absorption in the Saturnian atmosphere. Over 1000 intensity measurements were performed using the Fourier transform spectrometer located at the Pacific Northwest Laboratory at a resolution of 0.0011 cm-1. Using the rovibrational line assignments and positions published by Fusina and Di Lonardo for the two fundamental bands nu2 and nu4 located near 992.13 and 1118.31 cm-1 respectively, and treating these two bands within a dyad interacting system, we will report preliminary intensity analysis for this spectral range.