9 papers
Magnetic Dynamo Driven by Inertial Waves
A. Mishra, G. Mamatsashvili, M. Le Bars +2
We demonstrate, by studying precession-driven flows, that inertial wave hydrodynamic turbulence can drive a robust magnetic dynamo action. Motivated by the stronger damping of larg…
Tidal dissipation in magnetised, rotating stars and planets: linear calculations exploring various magnetic field configurations
Shijun Chu, Zhao Guo, Aurélie Astoul +2
We study tidal flows in the convective envelopes of rotating, magnetised fluid bodies, such as low-mass stars and giant planets. In well-mixed convective regions, (magneto-)inertia…
Observational imprints of tidal internal gravity wave dissipation in star-planet systems
Yaroslav A. Lazovik, Adrian J. Barker
Tidal interactions play a crucial role in the orbital evolution of close-in star-planet systems. There are numerous manifestations of tides, including planetary orbital migration,…
The stability of propagating plane inertial waves in rotating fluids
Valentin Skoutnev, Aurélie Astoul, Adrian J. Barker
Inertial waves transport energy and momentum in rotating fluids and are a major contributor to mixing and tidal dissipation in Earth's oceans, gaseous planets, and stellar interior…
Tidal dissipation and spin-orbit alignment due to the precessional instability in convection zones in rotating giant planets and stars
Nils B. de Vries, Adrian J. Barker, Rainer Hollerbach
Tidal dissipation in star-planet systems occurs through various mechanisms, including the precessional instability. This is an instability of laminar flows (``Poincaré flows") for…
Interplay between tidal flows and magnetic fields in nonlinear simulations of stellar and planetary convective envelopes
Aurélie Astoul, Adrian J. Barker
Stars and planets in close systems are magnetised but the influence of magnetic fields on their tidal responses (and vice versa) and dissipation rates has not been well explored. W…