28 May 2017 to 2 June 2017
Queen's University
America/Toronto timezone
Welcome to the 2017 CAP Congress! / Bienvenue au congrès de l'ACP 2017!

SPECTROSCOPIC STUDY OF CO IN THE FUNDAMENTAL BAND OVER A RANGE OF TEMPERATURES FROM 296 TO 79 K

29 May 2017, 16:00
30m
BioSci 1103 (Queen's University)

BioSci 1103

Queen's University

Invited Speaker / Conférencier invité Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC) M4-2 Atomic and Molecular Spectroscopy: Microwave to X-ray (DAMOPC) | Spectroscopie atomique et moléculaire: des micro-ondes aux rayons X (DPAMPC)

Speaker

Prof. Adriana Predoi-Cross (Department of Physics and Astronomy, University of Lethbridge, Lethbridge, AB, T1K 6R4 Canada)

Description

We present the results of a spectroscopic study of 27 spectra of the fundamental band of pure carbon monoxide and carbon monoxide mixed with air, recorded over a range of temperatures. The Voigt, speed-dependent Voigt and Rautian line shape models have been employed in the analysis. Line intensities, air- and self-broadening coefficients, pressure induced air- and self-shift coefficients, Einstein A-coefficients and line-mixing parameters have been retrieved. The Exponential Power Gap and Energy Corrected Sudden scaling laws have been used to calculate line-mixing parameters. The pure carbon monoxide half widths have been calculated at different temperatures using a potential energy surface based on a Tipping-Herman intermolecular interaction potential and taking the electrostatic interactions into account. We have compared our measurement results with theoretical results (for the CO-CO system) and with previous published studies.

Primary authors

Mr Nazrul Islam (Department of Physics and Astronomy, University of Lethbridge) Prof. Adriana Predoi-Cross (Department of Physics and Astronomy, University of Lethbridge, Lethbridge, AB, T1K 6R4 Canada) Dr Mary Ann Smith (Science Directorate, NASA Langley Research Center, Hampton, Virginia, VA, USA) Dr Malathy Devi (Department of Physics, The College of William and Mary, Williamsburg, VA 23187, USA) Dr Sergey Ivanov (Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 2, Pionerskaya Str., 142190 Troitsk, Moscow, Russia) Dr Oleg Buzykin (Central Aerohydrodynamic Institute (TsAGI))

Presentation Materials