Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Claire Michaut"'
Publikováno v:
ESAIM: Proceedings and Surveys, Vol 64, Pp 78-92 (2018)
In this work, we present the diffusion approximation model for radiative transfer when we deal with optically thick astrophysical flows. Since the initial model is high CPU time demanding when dealing with its numerical approximation, solving this si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b8f49c2a1a07a020d83082967221191
https://doi.org/10.1051/proc/201864078
https://doi.org/10.1051/proc/201864078
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2018, 617, pp.A133. ⟨10.1051/0004-6361/201832663⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 617, pp.A133. ⟨10.1051/0004-6361/201832663⟩
Astronomy and Astrophysics-A&A, 2018, 617, pp.A133. ⟨10.1051/0004-6361/201832663⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 617, pp.A133. ⟨10.1051/0004-6361/201832663⟩
Aims. The Vishniac instability is thought to explain the complex structure of radiative supernova remnants (SNRs) when a blast wave has propagated from a central explosion. Methods. In this paper, we present numerical studies with the two-dimensional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc8415a4e2022bf18e15eb77cac4e831
https://hal.science/hal-02294735/document
https://hal.science/hal-02294735/document
Publikováno v:
High Energy Density Physics
High Energy Density Physics, Elsevier, 2017, 22, pp.77-89. ⟨10.1016/j.hedp.2017.01.001⟩
High Energy Density Physics, Elsevier, 2017, 22, pp.77-89. ⟨10.1016/j.hedp.2017.01.001⟩
The understanding of astrophysical phenomena requires to deal with robust numerical tools in order to handle realistic scales in terms of energy, characteristic lengths and Mach number that cannot be easily reproduced by means of laboratory experimen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80ce5358f10b261f718fe2fab6d874e9
https://hal.archives-ouvertes.fr/hal-02264303
https://hal.archives-ouvertes.fr/hal-02264303
Publikováno v:
EAS Publications Series
ECLA-European Conference on Laboratory Astrophysics
ECLA-European Conference on Laboratory Astrophysics, Sep 2011, Paris, France. pp.37-40, ⟨10.1051/eas/1258005⟩
ECLA-European Conference on Laboratory Astrophysics
ECLA-European Conference on Laboratory Astrophysics, Sep 2011, Paris, France. pp.37-40, ⟨10.1051/eas/1258005⟩
International audience; Using powerful lasers, we are now able to produce in laboratory relevant regimes of density, temperature and velocity to create a diagnosable exact scaled model of magnetic cataclysmic variables accretion column. We present he
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f03f38ccab9ade6a322eedc940e4cb66
https://doi.org/10.1051/eas/1258005
https://doi.org/10.1051/eas/1258005
Publikováno v:
Astrophysics and Space Science
Astrophysics and Space Science, 2011, 336, pp.183-187. ⟨10.1007/s10509-011-0688-8⟩
Astrophysics and Space Science, 2011, 336, pp.183-187. ⟨10.1007/s10509-011-0688-8⟩
International audience; The Vishniac instability is supposed to explain the fragmentation of the thin shell of shocked matter in the radiative phase of supernova remnants. However its implication and its consequence on the morphological evolution of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42071a958affb47185685462840c030d
https://doi.org/10.1007/s10509-011-0688-8
https://doi.org/10.1007/s10509-011-0688-8
Autor:
Alessandra Ravasio, Youichi Sakawa, T. Ide, C. D. Gregory, J. Boudenne, H. Tanji, Claire Michaut, M. Koenig, Hideaki Takabe, P. Barroso, Taichi Morita, A. Dizière, Yasuhiro Kuramitsu
Publikováno v:
Astrophysics and Space Science
Astrophysics and Space Science, 2011, 336, pp.213-218. ⟨10.1007/s10509-011-0653-6⟩
Astrophysics and Space Science, 2011, 336, pp.213-218. ⟨10.1007/s10509-011-0653-6⟩
International audience; In this paper, recent results obtained on highly radiative shocks generated in a xenon filled gas cell using the GEKKO XII laser facility are presented. Data show extremely high shock velocity (>=150 km/s) never achieved befor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00efb39b6094861d2be03b16be644870
https://doi.org/10.1007/s10509-011-0653-6
https://doi.org/10.1007/s10509-011-0653-6
Publikováno v:
Astrophysics and Space Science. 336:175-181
This paper deals about pure hydrodynamic and radiation hydrodynamic codes developed at LUTH, dedicated to astrophysical simulations. The studied phenomena in this area are often encountered at high Mach number and in a radiation regime where no a pri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::322104441b984537e42138c04fb51ac6
https://doi.org/10.1007/s10509-010-0524-6
https://doi.org/10.1007/s10509-010-0524-6
Publikováno v:
Astrophysics and Space Science
Astrophysics and Space Science, 2009, 322, pp.91-95. ⟨10.1007/s10509-008-9926-0⟩
Astrophysics and Space Science, 2009, 322, pp.91-95. ⟨10.1007/s10509-008-9926-0⟩
International audience; Vishniac instability has been theoretically studied in supernova remnants where it is supposed to explain the fragmentation of the interstellar medium. However its role is not fully demonstrated in these astrophysical objects.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4889a09b473e0061f256775e4439a9b1
https://doi.org/10.1007/s10509-008-9926-0
https://doi.org/10.1007/s10509-008-9926-0
Autor:
Youichi Sakawa, Nigel Woolsey, Alessandra Ravasio, Berenice Loupias, A. Dizière, M. Koenig, Hideaki Takabe, S. A. Pikuz, Claire Michaut, H. Aoki, Emeric Falize, Taichi Morita, Yasuhiro Kuramitsu, H. Tanji, Christopher D. Gregory, T. Ide
Publikováno v:
High Energy Density Physics
High Energy Density Physics, Elsevier, 2014, 11, pp.12-16. ⟨10.1016/j.hedp.2013.12.003⟩
High Energy Density Physics, 2014, 11, pp.12-16. ⟨10.1016/j.hedp.2013.12.003⟩
High Energy Density Physics, Elsevier, 2014, 11, pp.12-16. ⟨10.1016/j.hedp.2013.12.003⟩
High Energy Density Physics, 2014, 11, pp.12-16. ⟨10.1016/j.hedp.2013.12.003⟩
Preliminary experiments have been performed to investigate the effects of radiative cooling on plasma jets. Thin (3 μm–5 μm) conical shells were irradiated with an intense laser, driving jets with velocities >100 km s−1. Through the use of diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1488aa5e94be26c4cbcf4fd404d5ac3
https://hal.archives-ouvertes.fr/hal-02556634
https://hal.archives-ouvertes.fr/hal-02556634
Publikováno v:
High Energy Density Physics
High Energy Density Physics, Elsevier, 2013, 9 (1), pp.42-46. ⟨10.1016/j.hedp.2012.10.002⟩
High Energy Density Physics, Elsevier, 2013, 9 (1), pp.42-46. ⟨10.1016/j.hedp.2012.10.002⟩
In this paper we study the formation and evolution of radiative accretion shocks in the context of accretion columns in magnetic cataclysmic variables. The phenomenon induces extreme regimes of matter and the radiation emitted by those region dominat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab6b0d39eeeefc12bcfa7cb7f80d6f93
https://hal.archives-ouvertes.fr/hal-02551459
https://hal.archives-ouvertes.fr/hal-02551459