CO2-broadening coefficients in the ν4 fundamental band of methane at room temperature and application to CO2-rich planetary atmospheres

Research output: Contribution to journalArticle

Abstract

Using a tunable diode-laser spectrometer, we have measured the CO 2-broadening coefficients of 28 absorption lines in the ν4 band of CH4. Each line was recorded at room temperature (296 K) and at 4 different pressures, ranging from 8 to 50 mbar. The experimental determination of the CO2-broadening coefficients was performed by fitting a theoretical profile to the experimental profile of each line recorded at each pressure. Voigt, Rautian-Sobel'man and Galatry models were therefore used. The impact of these determinations on atmospheric investigations on CO2-rich planetary atmospheres are addressed. © 2014 Elsevier Inc. All rights reserved.

Original languageEnglish
Pages (from-to)35-40
Number of pages6
JournalJournal of molecular spectroscopy
Volume297
Early online date14 Jan 2014
DOIs
Publication statusPublished - 1 Mar 2014

Fingerprint

planetary atmospheres
Methane
methane
laser spectrometers
room temperature
Carbon Monoxide
coefficients
profiles
Semiconductor lasers
Spectrometers
diodes
Temperature

Keywords

  • Carbon dioxide
  • CH
  • Collisional broadenings
  • Diode-laser
  • ExoMarsTGO
  • NOMAD
  • Planetary atmospheres

Cite this

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title = "CO2-broadening coefficients in the ν4 fundamental band of methane at room temperature and application to CO2-rich planetary atmospheres",
abstract = "Using a tunable diode-laser spectrometer, we have measured the CO 2-broadening coefficients of 28 absorption lines in the ν4 band of CH4. Each line was recorded at room temperature (296 K) and at 4 different pressures, ranging from 8 to 50 mbar. The experimental determination of the CO2-broadening coefficients was performed by fitting a theoretical profile to the experimental profile of each line recorded at each pressure. Voigt, Rautian-Sobel'man and Galatry models were therefore used. The impact of these determinations on atmospheric investigations on CO2-rich planetary atmospheres are addressed. {\circledC} 2014 Elsevier Inc. All rights reserved.",
keywords = "Carbon dioxide, CH, Collisional broadenings, Diode-laser, ExoMarsTGO, NOMAD, Planetary atmospheres",
author = "Laurent Fissiaux and Quentin Deli{\`e}re and Ghislain Blanquet and S{\'e}verine Robert and Vandaele, {Ann Carine} and Muriel Lep{\`e}re",
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T1 - CO2-broadening coefficients in the ν4 fundamental band of methane at room temperature and application to CO2-rich planetary atmospheres

AU - Fissiaux, Laurent

AU - Delière, Quentin

AU - Blanquet, Ghislain

AU - Robert, Séverine

AU - Vandaele, Ann Carine

AU - Lepère, Muriel

PY - 2014/3/1

Y1 - 2014/3/1

N2 - Using a tunable diode-laser spectrometer, we have measured the CO 2-broadening coefficients of 28 absorption lines in the ν4 band of CH4. Each line was recorded at room temperature (296 K) and at 4 different pressures, ranging from 8 to 50 mbar. The experimental determination of the CO2-broadening coefficients was performed by fitting a theoretical profile to the experimental profile of each line recorded at each pressure. Voigt, Rautian-Sobel'man and Galatry models were therefore used. The impact of these determinations on atmospheric investigations on CO2-rich planetary atmospheres are addressed. © 2014 Elsevier Inc. All rights reserved.

AB - Using a tunable diode-laser spectrometer, we have measured the CO 2-broadening coefficients of 28 absorption lines in the ν4 band of CH4. Each line was recorded at room temperature (296 K) and at 4 different pressures, ranging from 8 to 50 mbar. The experimental determination of the CO2-broadening coefficients was performed by fitting a theoretical profile to the experimental profile of each line recorded at each pressure. Voigt, Rautian-Sobel'man and Galatry models were therefore used. The impact of these determinations on atmospheric investigations on CO2-rich planetary atmospheres are addressed. © 2014 Elsevier Inc. All rights reserved.

KW - Carbon dioxide

KW - CH

KW - Collisional broadenings

KW - Diode-laser

KW - ExoMarsTGO

KW - NOMAD

KW - Planetary atmospheres

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DO - 10.1016/j.jms.2014.01.006

M3 - Article

VL - 297

SP - 35

EP - 40

JO - Journal of molecular spectroscopy

JF - Journal of molecular spectroscopy

SN - 0022-2852

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