Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Rekier, Jeremy"'
Observational constraints on Mercury's thermal evolution and magnetic field indicate that the top part of the fluid core is stably stratified. Here we compute how a stable layer affects the core flow in response to Mercury's main 88-day longitudinal
Externí odkaz:
http://arxiv.org/abs/2308.15912
Publikováno v:
Phys. Rev. Research 5, 033029 (2023)
First principles of electromagnetism impose that the tangential electric field must be continuous at the interface between two media. The definition of the electric field depends on the frame of reference leading to an ambiguity in the mathematical e
Externí odkaz:
http://arxiv.org/abs/2303.00718
Autor:
Rekier, Jérémy
The time-varying response of the Earth's and other planets' rotation to external gravitational torques depends strongly on their internal structure. In particular, the existence of the mode known as the Free Core Nutation in the fluid core, is known
Externí odkaz:
http://arxiv.org/abs/2205.02799
The observation of global acoustic waves (p modes) in the Sun has been key to unveiling its internal structure and dynamics. A different kind of wave, known as sectoral Rossby modes, have been observed and identified, which potentially opens the door
Externí odkaz:
http://arxiv.org/abs/2204.13007
Publikováno v:
The Planetary Science Journal, 1(1), 20 (2020)
We compute the inertial modes of a freely rotating two-layer planetary model with an ellipsoidal inviscid fluid core and a perfectly rigid mantle. We present a method to derive analytical formulae for the frequencies of the Free Core Nutation (FCN) a
Externí odkaz:
http://arxiv.org/abs/2004.08218
Publikováno v:
Gen Relativ Gravit 53, 38 (2021)
We study the spherical collapse of an over-density of a barotropic fluid with linear equation of state in a cosmological background. Fully relativistic simulations are performed by using the Baumgarte-Shibata-Shapiro-Nakamura formalism jointly with t
Externí odkaz:
http://arxiv.org/abs/1912.00677
Publikováno v:
Geophysical Journal International, 2019, 0956-540X
The Earth is a rapidly rotating body. The centrifugal pull makes its shape resemble a flattened ellipsoid and Coriolis forces support waves in its fluid core, known as inertial waves. These waves can lead to global oscillations, or modes, of the flui
Externí odkaz:
http://arxiv.org/abs/1904.11837
Publikováno v:
Phys. Rev. D 93, 043533 (2016)
We present a study of the fully relativistic spherical collapse in presence of quintessence using on Numerical Relativity, following the method proposed by the authors in a previous article [arXiv:1409.3476]. We ascertain the validity of the method b
Externí odkaz:
http://arxiv.org/abs/1509.08354
Publikováno v:
Phys. Rev. D 91, 024025 (2015)
We present a fully relativistic numerical method for the study of cosmological problems using the Baumgarte-Shapiro-Shibata-Nakamura formalism on a dynamical Friedmann-Lema\^itre-Robertson-Walker background. This has many potential applications inclu
Externí odkaz:
http://arxiv.org/abs/1409.3476
Autor:
Clesse, Sebastien, Rekier, Jeremy
Publikováno v:
Phys. Rev. D 90, 083527 (2014)
We revisit the status of hybrid inflation in the light of Planck and recent BICEP2 results, taking care of possible transient violations of the slow-roll conditions as the field passes from the large field to the vacuum dominated phase. The usual reg
Externí odkaz:
http://arxiv.org/abs/1407.1984