V. Malathy Devi
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View article: New quantitative measurements and spectroscopic line parameters of ammonia in the 685–1250 cm <sup>−1</sup> spectral region for atmospheric remote sensing
New quantitative measurements and spectroscopic line parameters of ammonia in the 685–1250 cm <sup>−1</sup> spectral region for atmospheric remote sensing Open
Ammonia (NH3) is a toxic pollutant, generally linked to agricultural emissions, and plays a major role in the formation of fine aerosols which have a significant and detrimental effect on human health. NH3 is one of the most significant ga…
View article: New quantitative measurements and spectroscopic line parameters of ammonia in the 685–1250 cm <sup>-1</sup> spectral region for atmospheric remote sensing
New quantitative measurements and spectroscopic line parameters of ammonia in the 685–1250 cm <sup>-1</sup> spectral region for atmospheric remote sensing Open
Ammonia (NH3) is a toxic pollutant, generally linked to agricultural emissions, and plays a major role in the formation of fine aerosols which have a significant and detrimental effect on human health. NH3 is one of the key pollutants that…
View article: Room temperature line parameters of the self- and air-broadened fundamental vibrational transition of carbon monoxide: experimental results and calculations
Room temperature line parameters of the self- and air-broadened fundamental vibrational transition of carbon monoxide: experimental results and calculations Open
International audience
View article: SPECTROSCOPIC STUDY OF SELF- AND AIR-BROADENED METHANE IN THE 4100-4300 cm−1 REGION
SPECTROSCOPIC STUDY OF SELF- AND AIR-BROADENED METHANE IN THE 4100-4300 cm−1 REGION Open
Chemical reactions at ultralow temperatures can proceed surprisingly efficiently due to their quantum mechanical nature. However, the detailed chemical physics to describe and predict the distribution of final states is still unclear. We w…
View article: POSITIONS, INTENSITIES AND AIR-BROADENED LINE SHAPE PARAMETERS FOR THE 1←0 BANDS OF CO ISOTOPOLOGUES
POSITIONS, INTENSITIES AND AIR-BROADENED LINE SHAPE PARAMETERS FOR THE 1←0 BANDS OF CO ISOTOPOLOGUES Open
In 2012, McGuire et al.\\ identified carbodiimide (HNCNH), an isomer of the well-known interstellar species cyanamide (NH2CN) which was first detected in 1975 at millimeter wavelengths by Turner et al. The detection of HNCNH was done using…
View article: SPECTRAL LINE SHAPES IN THE ν3 Q BRANCH OF 12CH4 NEAR 3.3 μm
SPECTRAL LINE SHAPES IN THE ν3 Q BRANCH OF 12CH4 NEAR 3.3 μm Open
Detailed knowledge of spectroscopic parameters for prominent Q branches of methane is necessary _x000d_\nfor interpretation and modeling of high resolution infrared spectra of terrestrial and planetary atmospheres. _x000d_\nWe have measure…
View article: PROGRESS IN THE MEASUREMENT ON TEMPERATURE-DEPENDENCE OF H2-BROADENING OF COLD AND HOT CH4
PROGRESS IN THE MEASUREMENT ON TEMPERATURE-DEPENDENCE OF H2-BROADENING OF COLD AND HOT CH4 Open
We report preliminary measurements on the temperature dependence of H$_{2}$-broadening of CH$_{4}$ in the near infrared at temperatures between 100 and 370 K. In support of the Jovian and exoplanet atmospheric remote sensing in the near in…
View article: SPECTROSCOPIC STUDY OF AIR-BROADENED NITROUS OXIDE IN THE ν3 BAND
SPECTROSCOPIC STUDY OF AIR-BROADENED NITROUS OXIDE IN THE ν3 BAND Open
We present results of a recent analysis of laboratory spectra to determine line positions, intensities, _x000d_\nair-broadened half-widths and pressure-induced shifts and their temperature dependences _x000d_\nin the $nu_3$ fundamental ban…
View article: Fourier Transform Spectroscopy of two trace gases namely Methane and Carbon monoxide for planetary and atmospheric research application
Fourier Transform Spectroscopy of two trace gases namely Methane and Carbon monoxide for planetary and atmospheric research application Open
Two atmospheric trace gases, namely methane and carbon monoxide have been considered in this study. Fourier transform absorption spectra of the 2-0 band of 12C16O mixed with CO2 have been recorded at total pressures from 156 to 1212 hPa an…
View article: Experimental and theoretical he-broadened line parameters of carbon monoxide in the fundamental band
Experimental and theoretical he-broadened line parameters of carbon monoxide in the fundamental band Open
We report experimental measurements and theoretical calculations for He-broadened Lorentz half-width coefficients\nand He- pressure-shift coefficients of 45 carbon monoxide transitions in the 1-0 band. The high-resolution spectra analyzed …
View article: Precise methane absorption measurements in the 1.64 μm spectral region for the MERLIN mission
Precise methane absorption measurements in the 1.64 μm spectral region for the MERLIN mission Open
In this article we describe a high‐precision laboratory measurement targeting the R(6) manifold of the 2ν 3 band of 12 CH 4 . High‐fidelity modeling of this absorption spectrum for atmospheric temperature and pressure conditions will be re…
View article: Line parameters including temperature dependences of air- and self-broadened line shapes of 12C16O2: 2.06-μm region
Line parameters including temperature dependences of air- and self-broadened line shapes of 12C16O2: 2.06-μm region Open
This study reports the results from analyzing a number of high resolution, high signal-to-noise ratio (S/N) spectra in the 2.06-μm spectral region for pure CO2 and mixtures of CO2 in dry air. A multispectrum nonlinear least squares curve f…
View article: Direct measurements and theoretical calculations of CO-He line-shape parameters and their temperature dependences in the fundamental band of CO
Direct measurements and theoretical calculations of CO-He line-shape parameters and their temperature dependences in the fundamental band of CO Open
International audience
View article: Experimental and theoretical line parameters for self-and H2-broadened transitions in the first overtone band of CO
Experimental and theoretical line parameters for self-and H2-broadened transitions in the first overtone band of CO Open
In this study we have re-analyzed high-resolution spectra of pure CO and CO broadened by hydrogen recorded in the spectral range of the first overtone band [1]. Self-and H2-Lorentzian pressure-broadened half-width, pressure-induced shift p…
View article: SELF- AND CO2-BROADENED LINE SHAPE PARAMETERS FOR THE ν2 AND ν3 BANDS OF HDO
SELF- AND CO2-BROADENED LINE SHAPE PARAMETERS FOR THE ν2 AND ν3 BANDS OF HDO Open
Knowledge of CO 2 -broadened HDO widths and their temperature dependence exponents are required to interpret atmospheric spectra of Mars and Venus.We therefore used nine high-resolution, high signal-to-noise spectra of HDO and HDO+CO 2 mix…