Výsledky vyhledávání - "J L, Lemaire"

Formation of ozone by solid state reactions

Autor: Lahouari Krim, Mindaguas Jonusas, Gianfranco Vidali, J. L. Lemaire

Publikováno v: Physical Chemistry Chemical Physics. 20:19750-19758

We studied the isotopic composition of ozone formed at low (3-10 K) temperature via O + O2 solid state reactions using a partially dissociated 16O/16O2 : 18O/18O2 = 1 : 1 mixture. The ozone ice has an isotopic abundance that differs from the statisti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b71f9c9ab85f1b4281ade540201d75c1
https://doi.org/10.1039/c8cp03020k

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X-Ray-induced Deuterium Enrichment of N-rich Organics in Protoplanetary Disks: An Experimental Investigation Using Synchrotron Light

Autor: Mathieu Roskosz, Christophe Sandt, J. L. Lemaire, Alexandre Simionovici, Nicolas Jaouen, Lisseth Gavilan, Laurent Remusat, Nathalie Carrasco, Cornelia Jäger, Thomas Henning, Horia Popescu, Denis Mangin

Publikováno v: The Astrophysical Journal
The Astrophysical Journal, 2017, 840 (1), pp.35. ⟨10.3847/1538-4357/aa6bfc⟩
The Astrophysical Journal, American Astronomical Society, 2017, 840 (1), pp.35. ⟨10.3847/1538-4357/aa6bfc⟩

The deuterium enrichment of organics in the interstellar medium, protoplanetary disks and meteorites has been proposed to be the result of ionizing radiation. The goal of this study is to quantify the effects of soft X-rays (0.1 - 2 keV), a component

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e811c1bd18619f14bcfba836c1724e9

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Ionization yield and absorption spectra reveal superexcited Rydberg state relaxation processes in H2O and D2O

Autor: J. H. Fillion, Sydney Leach, Hans-Werner Jochims, S. Baouche, François Dulieu, J. L. Lemaire

Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 36:2767-2776

The absorption cross section and the ionization quantum yield of H2O have been measured using a synchrotron radiation source between 9 and 22 eV. Comparison between the two curves highlights competition between relaxation processes for Rydberg states

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7381dea3e3a2f443489825a10bbf0c43
https://doi.org/10.1088/0953-4075/36/13/308

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Observation of a new electronic state of CO perturbing W ¹Π(v=1)

Autor: A N, Heays, M, Eidelsberg, G, Stark, J L, Lemaire, L, Gavilan, S R, Federman, B R, Lewis, J R, Lyons, N, de Oliveira, D, Joyeux

Publikováno v: The Journal of chemical physics. 141(14)

We observe photoabsorption of the W(1) ← X(0) band in five carbon monoxide isotopologues with a vacuum-ultraviolet Fourier-transform spectrometer and a synchrotron radiation source. We deduce transition energies, integrated cross sections, and natu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::5489877d1d42c448a812c88c9e50b218
https://pubmed.ncbi.nlm.nih.gov/25318726

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Photodissociation of H2O and D2O in B̃, C̃, and D̃ States (134−119 nm). Comparison between Experiment and ab Initio Calculations

Autor: J. H. Fillion, F. Rostas, J. L. Lemaire, R. Van Harrevelt, M. C. Van Hemert, A. H. Zanganeh, Marta Castillejo, Javier Barquín Ruiz

Publikováno v: The Journal of Physical Chemistry A. 105:11414-11424

Rotational and vibrational state distributions have been measured for the OH/OD(A 2 Σ + ) fragment produced by the photodissociation of H 2 O/D 2 O at a set of wavelengths in the 133-119 nm range that lead to excitation of the B( 1 A 1 ) state, eith

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2b4d399b0a4a90c1329068cc4f9167c9
https://doi.org/10.1021/jp013032x

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High‐ResolutionHUBBLE SPACE TELESCOPESTIS Spectra of Ciand CO in theβ Pictoris Circumstellar Disk

Autor: Paul D. Feldman, A. Jolly, F. Rostas, Roger Ferlet, A. Roberge, Anne-Marie Lagrange, J. L. Lemaire, Alfred Vidal-Madjar

Publikováno v: The Astrophysical Journal. 538:904-910

High resolution FUV echelle spectra showing absorption features arising from CI and CO gas in the Beta Pictoris circumstellar (CS) disk were obtained on 1997 December 6 and 19 using the Space Telescope Imaging Spectrograph (STIS). An unsaturated spin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bfdc7a27c90a2744596660cbdd930995
https://doi.org/10.1086/309157

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Probing amorphous solid water by temperature programmed desorption experiments with molecular hydrogen : from compact to porous ices

Autor: Amiaud J.-H. Fillion F. Dulieu A. Momeni J.-L Lemaire, L.

Publikováno v: Molecules in Space & Laboratory
International conference on Molecules in space and laboratory, Obs. de Paris et Univ. de Cergy-Pontoise
International conference on Molecules in space and laboratory, Obs. de Paris et Univ. de Cergy-Pontoise, May 2007, Paris, France. pp.241

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::be2756641275a4492f4e18eaf5bad69a
https://hal.science/hal-00367762

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Experimental evidence of water formation on interstellar grains

Autor: Dulieu L. Amiaud J.-H. Fillion E. Matar A. Momeni V. Pirronello J.-L Lemaire, F.

Publikováno v: in Molecules in Space & Laboratory
International conference on Molecules in space and laboratory Obs. de Paris et Univ. de Cergy-Pontoise
International conference on Molecules in space and laboratory Obs. de Paris et Univ. de Cergy-Pontoise, May 2007, Paris, France. pp.267

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::585ff3c37ddebe7f2f0bc748d4ed724c
https://hal.archives-ouvertes.fr/hal-00367489

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