Search Results - "Bénilan, Yves"
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Ionization photophysics and spectroscopy of cyanoacetylene
Published in The Journal of chemical physics (07-05-2014)“…Photoionization of cyanoacetylene was studied using synchrotron radiation over the non-dissociative ionization excitation range 11-15.6 eV, with…”
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New benzene absorption cross sections in the VUV, relevance for Titan’s upper atmosphere
Published in Icarus (New York, N.Y. 1962) (01-02-2016)“…•We measured benzene absorption cross sections in the temperature range 215–298K.•We presented the first analysis of temperature dependency, which is…”
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Detection of C2HD and the D/H ratio on Titan
Published in Icarus (New York, N.Y. 1962) (01-10-2008)“…We report here the first detection of mono-deuterated acetylene (acetylene-d1, C 2HD) in Titan's atmosphere from the presence of two of its emission bands at…”
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Origin of cometary extended sources from degradation of refractory organics on grains: polyoxymethylene as formaldehyde parent molecule
Published in Icarus (New York, N.Y. 1962) (01-02-2004)“…The radial distribution of some molecules (CO, H 2CO, HNC, …) observed in the coma of some comets cannot be explained only by a direct sublimation from the…”
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Low temperature (39-298 K) kinetics study of the reactions of the C4H radical with various hydrocarbons observed in Titan's atmosphere
Published in Icarus (New York, N.Y. 1962) (01-04-2008)“…The reaction kinetics of the butadinyl radical, C4H, with various hydrocarbons detected in the atmosphere of Titan (methane, ethane, propane, acetylene, ethene…”
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Heliocentric evolution of the degradation of polyoxymethylene: Application to the origin of the formaldehyde (H 2CO) extended source in Comet C/1995 O1 (Hale–Bopp)
Published in Icarus (New York, N.Y. 1962) (01-09-2006)“…The H 2CO production rates measured in Comet C/1995 O1 (Hale–Bopp) from radio wavelength observations [Biver, N., and 22 colleagues, 2002a. Earth Moon Planets…”
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Experimental Investigation of the Photochemical Production of Hydrocarbons in Warm Gas Giant Exoplanet Atmospheres
Published in The Astrophysical journal (01-10-2023)“…Abstract In warm (equilibrium temperature <1000 K) gas giant exoplanet atmospheres, the observation of trace species in abundances deviating from…”
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VUV-absorption cross section of CO2 at high temperatures and impact on exoplanet atmospheres
Published in BIO Web of Conferences (01-01-2014)“…Ultraviolet (UV) absorption cross sections are an essential ingredient of photochemical atmosphere models. Exoplanet searches have unveiled a large population…”
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Conference Proceeding Journal Article -
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TITAN'S UPPER ATMOSPHERE FROM CASSINI/UVIS SOLAR OCCULTATIONS
Published in The Astrophysical journal (01-12-2015)“…ABSTRACT Titan's atmosphere is composed mainly of molecular nitrogen, methane being the principal trace gas. From the analysis of 8 solar occultations measured…”
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Photodestruction of Relevant Interstellar Molecules in Ice Mixtures
Published in The Astrophysical journal (20-06-2003)Get full text
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Experimental and theoretical studies on the gas/solid/gas transformation cycle in extraterrestrial environments
Published in Journal of Geophysical Research. E. Planets (25-12-2001)“…The ubiquity of molecular material in the universe, from hydrogen to complex organic matter, is the result of intermixed physicochemical processes that have…”
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Journal Article Conference Proceeding -
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Ionization photophysics and Rydberg spectroscopy of diacetylene
Published in Molecular physics (01-11-2012)“…Photoionization of diacetylene was studied using synchrotron radiation over the range 8-24 eV, with photoelectron-photoion coincidence (PEPICO) and threshold…”
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VUV photoionization of acetamide studied by electron/ion coincidence spectroscopy in the 8–24 eV photon energy range
Published in Chemical physics (01-01-2012)“…[Display omitted] ► We study the VUV photoionization of acetamide in the 8–24 eV photon energy range. ► Electron/ion coincidence measurements are performed…”
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Semi-empirical calculation of electronic absorption wavelengths of polyynes, monocyano- and dicyanopolyynes. Predictions for long chain compounds and carbon allotrope carbyne
Published in Chemical physics letters (06-08-2002)“…Absorption wavelengths and oscillator strengths have been calculated using the ZINDO method for the allowed low-energy electronic transition 1Σ +← 1Σ + of…”
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The origin of the CN radical in comets: A review from observations and models
Published in Planetary and space science (01-10-2005)“…The origin of CN radicals in comets is not completely understood so far. We present a study of CN and HCN production rates and CN Haser scale lengths showing…”
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Frequency and intensity analyses of the far infrared ν5 band system of cyanogen (C2N2) and applications to Titan
Published in Journal of quantitative spectroscopy & radiative transfer (01-07-2012)“…The far infrared spectrum of cyanogen has been studied at high resolution to improve the rotational analysis of the ν5 band system around 234cm−1. Present in…”
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VUV-absorption cross section of CO 2 at high temperatures and impact on exoplanet atmospheres
Published in BIO web of conferences (2014)Get full text
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Low temperature (39–298 K) kinetics study of the reactions of the C 4H radical with various hydrocarbons observed in Titan's atmosphere
Published in Icarus (New York, N.Y. 1962) (2008)“…The reaction kinetics of the butadinyl radical, C 4H, with various hydrocarbons detected in the atmosphere of Titan (methane, ethane, propane, acetylene,…”
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Journal Article