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Title:Hot Experimental Absorption Spectra Of Ch4 In The Pentad And Octad Region
Author(s):Hargreaves, Robert J.
Contributor(s):Bernath, Peter F.; Dulick, Michael
Subject(s):Linelists, Lineshapes, Collisions
Abstract:\begin{wrapfigure}{r}{0pt} \includegraphics[scale=0.3]{cropped2.eps} \end{wrapfigure} We present comprehensive line lists of \chem{CH_4} at high temperatures for the pentad and octad region (2400--5000 \wn). These spectra improve on our previous emission measurements for this region\footnote{Hargreaves, R.J., Beale, C.A., Michaux, L., Irfan, M., \& Bernath, P.F. 2012, \textit{ApJ}, 757, 46} by using a new quartz sample cell in conjunction with a tube furnace (pictured). Ten temperatures have been recorded from room temperature up to 1000$^{\circ}$C and our technique involves the acquisition of four separate Fourier transform infrared spectra at each temperature, thus accounting for both the emission and absorption of the molecule and the cell. By combining these four spectra we obtain true transmission spectra of hot \chem{CH_4} in this region. Analysis of this set of spectra enables the production of a line list that includes the position, intensity and empirical lower state energy. Our spectra and line lists can be used directly to model planetary atmospheres and brown dwarfs.
Issue Date:2014-06-16
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:Hargreaves, R.J.; Bernath, P.F.; Dulick, M. HOT EXPERIMENTAL ABSORPTION SPECTRA OF CH4 IN THE PENTAD AND OCTAD REGION. Proceedings of the International Symposium on Molecular Spectroscopy, Urbana, IL, June 16-21, 2014. DOI: 10.15278/isms.2014.MK04
Rights Information:Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License.
Date Available in IDEALS:2014-09-17

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