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Determination of foreign broadening coefficients for Methane Lines Targeted by the Tunable Laser Spectrometer (TLS) on the Mars Curiosity Rover

Manne, Jagadeeshwari and Bui, Thinh Q. and Webster, Christopher R. (2017) Determination of foreign broadening coefficients for Methane Lines Targeted by the Tunable Laser Spectrometer (TLS) on the Mars Curiosity Rover. Journal of Quantitative Spectroscopy and Radiative Transfer, 191 . pp. 59-66. ISSN 0022-4073. https://resolver.caltech.edu/CaltechAUTHORS:20170327-074537633

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Abstract

Molecular line parameters of foreign- broadening by air, carbon dioxide, and helium gas have been experimentally determined for infrared ro-vibrational spectral lines of methane isotopologues (^(12)CH_4 and ^(13)CH_4) at 3057 cm^(−1) targeted by the Tunable Laser Spectrometer (TLS) in the Sample Analysis at Mars (SAM) instrument suite on the Mars Science Laboratory (MSL) Curiosity rover. From multi-spectrum analyses with the speed-dependent Voigt line profile with Rosenkrantz line-mixing, speed-dependence and line-mixing effects were quantified for methane spectra at total pressures up to 200 mbar. The fitted air-broadening coefficients deviated from 8–25% to those reported in the HITRAN-2012 database.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.jqsrt.2017.01.035DOIArticle
http://www.sciencedirect.com/science/article/pii/S0022407316304253PublisherArticle
Additional Information:© 2017 Elsevier Ltd. Received 18 July 2016, Revised 28 January 2017, Accepted 29 January 2017, Available online 31 January 2017.
Subject Keywords:Tunable diode laser spectroscopy; CH4(v3); helium-broadening; CO2-broadening; air-broadening; line mixing
Record Number:CaltechAUTHORS:20170327-074537633
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170327-074537633
Official Citation:Jagadeeshwari Manne, Thinh Q. Bui, Christopher R. Webster, Determination of foreign broadening coefficients for Methane Lines Targeted by the Tunable Laser Spectrometer (TLS) on the Mars Curiosity Rover, Journal of Quantitative Spectroscopy and Radiative Transfer, Volume 191, April 2017, Pages 59-66, ISSN 0022-4073, http://dx.doi.org/10.1016/j.jqsrt.2017.01.035. (http://www.sciencedirect.com/science/article/pii/S0022407316304253)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:75399
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:27 Mar 2017 15:20
Last Modified:03 Oct 2019 16:50

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