Zobrazeno 1 - 10
of 456
pro vyhledávání: '"A, Wargnier"'
The solar atmosphere is a complex environment with diverse species and varying ionization states, especially in the chromosphere, where significant ionization variations occur. This region transitions from highly collisional to weakly collisional sta
Externí odkaz:
http://arxiv.org/abs/2409.15552
Autor:
Wargnier, Antonin, Poch, Olivier, Poggiali, Giovanni, Gautier, Thomas, Doressoundiram, Alain, Beck, Pierre, Nakamura, Tomoki, Miyamoto, Hideaki, Kameda, Shingo, Ruscassier, Nathalie, Buch, Arnaud, Hasselmann, Pedro H., Sultana, Robin, Quirico, Eric, Fornasier, Sonia, Barucci, Antonella
Surface porosity has been found to be an important property for small bodies. Some asteroids and comets can exhibit an extremely high surface porosity in the first millimeter layer. This layer may be produced by various processes and maintained by th
Externí odkaz:
http://arxiv.org/abs/2408.14149
Autor:
Wargnier, Antonin, Gautier, Thomas, Doressoundiram, Alain, Poggiali, Giovanni, Beck, Pierre, Poch, Olivier, Quirico, Eric, Nakamura, Tomoki, Miyamoto, Hideaki, Kameda, Shingo, Hasselmann, Pedro H., Ruscassier, Nathalie, Buch, Arnaud, Fornasier, Sonia, Barucci, Maria Antonietta
Previous observations of Phobos and Deimos, the moons of Mars, have improved our understanding of these small bodies. However, their formation and composition remain poorly constrained. Physical and spectral properties suggest that Phobos may be a we
Externí odkaz:
http://arxiv.org/abs/2405.02999
Autor:
Fornasier, S., Wargnier, A., Hasselmann, P. H., Tirsch, D., Matz, K. -D., Doressoundiram, A., Gautier, T., Barucci, M. A.
Publikováno v:
A&A 686, A203 (2024)
This study aims to analyze Phobos' photometric properties using Mars Express mission observations to support the Martian Moons eXploration mission. We analyzed resolved images of Phobos acquired between 2004 and 2022 by the HRSC and the SRC cameras o
Externí odkaz:
http://arxiv.org/abs/2403.12156
Autor:
Martínez-Sykora, Juan, De Pontieu, Bart, Hansteen, Viggo H., Testa, Paola, Wargnier, Q. M., Szydlarski, Mikolaj
The ponderomotive force is suggested to be the main mechanism to produce the so-called first ionization potential (FIP) effect - the enrichment of low FIP elements observed in the outer solar atmosphere. It is well known that the ionization of these
Externí odkaz:
http://arxiv.org/abs/2211.09361
Our understanding of magnetic reconnection (MR) under chromospheric conditions remains limited. Recent observations have demonstrated the important role of ion-neutral interactions in the dynamics of the chromosphere. Furthermore, the comparison betw
Externí odkaz:
http://arxiv.org/abs/2211.02157
Autor:
Wargnier-Dauchelle, Valentine, Grenier, Thomas, Durand-Dubief, Françoise, Cotton, François, Sdika, Michaël
Publikováno v:
In Pattern Recognition April 2025 160
Autor:
Laguna, Alejandro Alvarez, Wargnier, Quentin, Laguna, A., Scoggins, James, Mansour, Nagi, Massot, Marc, Magin, Thierry
Publikováno v:
Astronomy and Astrophysics, 2020
A fluid model is developed for multicomponent two-temperature magnetized plasmas in chemical non-equilibrium from the partially- to fully-ionized collisional regimes. We focus on transport phenomena aiming at representing the chromosphere of the Sun.
Externí odkaz:
http://arxiv.org/abs/1810.08490
Publikováno v:
SIAM Journal on Scientific Computing, Society for Industrial and Applied Mathematics, 2020, 42 (2), pp.B492-B519
This contribution deals with the modeling of collisional multicomponent magnetized plasmas in thermal and chemical nonequilibrium aiming at simulating and predicting magnetic reconnections in the chromosphere of the sun. We focus on the numerical sim
Externí odkaz:
http://arxiv.org/abs/1806.10436
Autor:
Sarfati, Samuel, Katz, Andrée, Cohen, Marc, Bantman, Patrick, Mimoun, Aviva, Sitruk, Patricia, Amson, Fabienne, Rimmer, Rachel, Zittoun, Julie, Paillat, Sébastien, Levy, Valérie, Pariente, Jacqueline, Huet, Corine, Sztulman, Linda, Wargnier, Nathalie, Soussan, Alix, Bloch, Golda, Ghozlan, Eric, Michower, Maurice, Fisbein, Laurence, Hazan, Katy, Battner, Henry, Heymann, Michèle, Astruc, Alexis, Halioua, Dan, Taïeb, Jonathan, Journo, Michael, Odier, Richard, Dassa, Stéphanie, Rochmann, Gabrielle, Vaislic, Muriel, Taieb, Charles, Halioua, Bruno
Publikováno v:
In European Journal of Trauma & Dissociation June 2022 6(2)