Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Fray, Nicolas"'
In order to understand the origin and evolution of comets, one must decipher the processes that formed and processed cometary ice and dust. Cometary materials have diverse physical and chemical properties and are mixed in various ways. Laboratory exp
Externí odkaz:
http://arxiv.org/abs/2308.11338
Autor:
Gardner, Esko, Lehto, Harry J., Lehto, Kirsi, Fray, Nicolas, Bardyn, Anaïs, Lönnberg, Tuomas, Merouane, Sihane, Isnard, Robin, Cottin, Hervé, Hilchenbach, Martin
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 499, Issue 2, December 2020, Pages 1870-1873
Here, we report the detection of phosphorus and fluorine in solid particles collected from the inner coma of comet 67P/Churyumov-Gerasimenko measured with the COmetary Secondary Ion Mass Analyser (COSIMA) instrument on-board the Rosetta spacecraft, o
Externí odkaz:
http://arxiv.org/abs/2010.13379
Autor:
Hornung, Klaus, Mellado, Eva Maria, Stenzel, Oliver J., Langevin, Yves, Merouane, Sihane, Fray, Nicolas, Fischer, Henning, Paquette, John, Baklouti, Donia, Bardyn, Anais, Engrand, Cecile, Cottin, Hervé, Thirkell, Laurent, Briois, Christelle, Rynö, Jouni, Silen, Johan, Schulz, Rita, Siljeström, Sandra, Lehto, Harry, Varmuza, Kurt, Koch, Andreas, Kissel, Jochen, Hilchenbach, Martin
Publikováno v:
In Planetary and Space Science 15 October 2023 236
Akademický článek
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Autor:
Venot, Olivia, Bénilan, Yves, Fray, Nicolas, Gazeau, Marie-Claire, Lefèvre, Franck, Es-sebbar, Et-touhami, Hébrard, Eric, Schwell, Martin, Bahrini, Chiheb, Montmessin, Franck, Lefèvre, Maxence, Waldmann, Ingo P.
Publikováno v:
A&A 609, A34 (2018)
Most exoplanets detected so far have atmospheric T significantly higher than 300K. Often close to their star, they receive an intense UV photons flux that triggers important photodissociation processes. The T dependency of VUV absorption cross sectio
Externí odkaz:
http://arxiv.org/abs/1709.08415
Publikováno v:
Astronomy & Astrophysics, 473(2), 641-649 (2007)
Since in situ studies and interplanetary dust collections only provide a spatially limited amount of information about the interplanetary dust properties, it is of major importance to complete these studies with properties inferred from remote observ
Externí odkaz:
http://arxiv.org/abs/1609.05233
Autor:
Venot, Olivia, Fray, Nicolas, Bénilan, Yves, Gazeau, Marie-Claire, Hébrard, Eric, Larcher, Gwenaelle, Schwell, Martin, Dobrijevic, Michel, Selsis, Franck
Ultraviolet (UV) absorption cross sections are an essential ingredient of photochemical atmosphere models. Exoplanet searches have unveiled a large population of short-period objects with hot atmospheres, very different from what we find in our solar
Externí odkaz:
http://arxiv.org/abs/1502.07620
Autor:
Krüger, Harald, Stephan, Thomas, Engrand, Cécile, Briois, Christelle, Siljeström, Sandra, Merouane, Sihane, Baklouti, Donia, Fischer, Henning, Fray, Nicolas, Hornung, Klaus, Lehto, Harry, Orthous-Daunay, François-Régis, Rynö, Jouni, Schulz, Rita, Silen, Johan, Thirkell, Laurent, Trieloff, Mario, Hilchenbach, Martin
COSIMA (COmetary Secondary Ion Mass Analyser) is a time-of-flight secondary ion mass spectrometer (TOF-SIMS) on board the Rosetta space mission. COSIMA has been designed to measure the composition of cometary dust grains. It has a mass resolution m/{
Externí odkaz:
http://arxiv.org/abs/1501.00716
Autor:
Hornung, Klaus, Mellado, Eva Maria, Paquette, John, Fray, Nicolas, Fischer, Henning, Stenzel, Oliver, Baklouti, Donia, Merouane, Sihane, Langevin, Yves, Bardyn, Anais, Engrand, Cecile, Cottin, Hervé, Thirkell, Laurent, Briois, Christelle, Modica, Paola, Rynö, Jouni, Silen, Johan, Schulz, Rita, Siljeström, Sandra, Lehto, Harry, Varmuza, Kurt, Koch, Andreas, Kissel, Jochen, Hilchenbach, Martin
Publikováno v:
In Planetary and Space Science March 2020 182
Autor:
Fray, Nicolas
Ce travail de thèse est une étude expérimentale et théorique de la contribution de la composante organique réfractaire des comètes à leur phase gazeuse. Certaines espèces gazeuses observées dans la coma, telles que le formaldéhyde (H2CO) et
Externí odkaz:
http://tel.archives-ouvertes.fr/tel-00007552
http://tel.archives-ouvertes.fr/docs/00/04/73/67/PDF/tel-00007552.pdf
http://tel.archives-ouvertes.fr/docs/00/04/73/67/PDF/tel-00007552.pdf