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Christophe Gissinger
Associate professor at Ecole Normale Superieure (ENS Paris)
Nature Astronomy - News
A magnetically driven equatorial jet in Europa's ocean europa

During recent decades, data from space missions have provided strong evidence of deep liquid oceans underneath a thin outer icy crust on several moons of Jupiter, particularly Europa. But these observations have also raised many unanswered questions regarding the oceanic motions generated under the ice, or the mechanisms leading to the geological features observed on Europa. By means of direct numerical simulations of Europa's interior, we show here that Jupiter's magnetic field generates a retrograde oceanic jet at the equator, which may influence the global dynamics of Europa's ocean and contribute to the formation of some of its surface features by applying a unidirectional torque on Europa's ice shell. C. Gissinger, L. Petitdemange

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New master program
M2 mathematical modeling and macroscopic physics M2

This master (previsouly 'Non linear and out of equilibrium phenomena') is a PSL program organized jointly by the Ecole Normale Superieure and the University of Paris Dauphine, as a new component of the already existing M2 'Applied Mathematics and Theoretical' (MATH) of Dauphine. This new master program offers courses in macroscopic physics, thermodynamics out of equilibrium, fluid dynamics, non-linear waves and patterns generated by instability.

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SFP-Societe Francaise de Physique
Un nouveau scenario pour les dynamos stellaires ? dipole

La Terre possède un champ magnétique, et heureusement ! Celui-ci agit en effet comme un bouclier qui nous protège d’un bombardement constant par les particules de vent solaire. Mais elle n’est pas le seul corps céleste dans ce cas : le Soleil possède également son propre champ magnétique, tout comme de nombreuses planètes, étoiles et galaxies. L’origine et la persistance de ces champs magnétiques astrophysiques posent encore beaucoup de questions fondamentales [...]

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Nominated at Institut Universitaire de France
29 October 2020 iuf

Christophe Gissinger is nominated as a junior member of the Institut Universitaire de France (IUF).

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Popular Science conference at ESPGG
Espace Pierre-Gilles de Gennes, February 1st 2021 epsgg

Wide-audience conference on: a magnetically-driven equatorial jet in Europa's ocean (laboratory experiments)

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21st International Couette-Taylor Workshop
5-9 July 2021 Taylor-Couette

While interest in the Taylor-Couette system began around the end of the 19th century, the TVFWP (Taylor Vortex Flow Working Party) was only introduced in 1979 and was later renamed to ICTW (International Couette-Taylor Workshop). During the last 30 years a growing community became interested in the diverse flow patterns seen in the Taylor-Couette apparatus.

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