Tidal dissipation in deep oceanic shells: from telluric planets to icy satellites
| Autor: | Auclair-Desrotour, Pierre, Mathis, St��phane, Laskar, Jacques, Leconte, J��r��my |
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| Přispěvatelé: | ECLIPSE 2018, Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Maintenance Myélinique et Neuropathies Périphériques (MMNP), Institut Génomique, Environnement, Immunité, Santé, Thérapeutique (GEIST), Université de Limoges (UNILIM)-Université de Limoges (UNILIM), Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Earth and Planetary Astrophysics (astro-ph.EP)
85-06 [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] FOS: Physical sciences Astrophysics::Earth and Planetary Astrophysics Physics::Atmospheric and Oceanic Physics Physics::Geophysics Astrophysics - Earth and Planetary Astrophysics |
| Zdroj: | Proceedings of the Annual meeting of the Frenh Society of Astronomy and Astrophysics.-3 au 6 juillet 2018 – Bordeaux-France-SF2A-2018-Eds.: P. Di Matteo, F. Billebaud, F. Herpin, N. Lagarde, J.-B. Marquette, A. Robin, O. Venot, pp.33-35 Proceedings of the Annual meeting of the Frenh Society of Astronomy and Astrophysics.-3 au 6 juillet 2018 – Bordeaux-France-SF2A-2018-Eds.: P. Di Matteo, F. Billebaud, F. Herpin, N. Lagarde, J.-B. Marquette, A. Robin, O. Venot, pp.33-35, Jul 2018, Bordeaux, France |
| Popis: | Oceanic tides are a major source of tidal dissipation. They are a key actor for the orbital and rotational evolution of planetary systems, and contribute to the heating of icy satellites hosting a subsurface ocean. Oceanic tides are characterized by a highly frequency-resonant behavior, which is mainly due to the propagation of surface gravity waves in the case of thin oceans, and internal waves when they are deeper. In this work, we derive self-consistent ab initio expressions of the oceanic tidal torque as a function of the key physical parameters of the system (the ocean depth, the Brunt-V\"ais\"al\"a stratification frequency, the rotation rate, the tidal frequency, the Rayleigh friction). These solutions include the coupled mechanisms of internal and surface gravito-inertial waves, which allows us to study the case of planets hosting deep oceans and offer interesting prospects for the coupling between subsurface oceans and ice shells in the case of icy satellites. Comment: 3 pages, 2 figures, proceedings of the SF2A annual meeting |
| Databáze: | OpenAIRE |
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