An Efficient Tidal Dissipation Mechanism via Stellar Magnetic Fields

Autor: Craig D. Duguid, Nils B. de Vries, Daniel Lecoanet, Adrian J. Barker

Publikováno v: The Astrophysical Journal Letters, Vol 966, Iss 1, p L14 (2024)

Recent work suggests that inwardly propagating internal gravity waves (IGWs) within a star can be fully converted to outward magnetic waves if they encounter a sufficiently strong magnetic field. The resulting magnetic waves dissipate as they propaga

Externí odkaz: https://doaj.org/article/31e16849cd1b43cb838892b747caefa7

Tidal Dissipation in Stably Stratified and Semiconvective Regions of Rotating Giant Planets: Incorporating Coriolis Forces

Autor: Christina M. Pontin, Adrian J. Barker, Rainer Hollerbach

Publikováno v: The Astrophysical Journal, Vol 960, Iss 1, p 32 (2023)

We study how stably stratified or semiconvective layers alter tidal dissipation rates associated with the generation of inertial, gravito-inertial, interfacial, and surface gravity waves in rotating giant planets. We explore scenarios in which stable

Externí odkaz: https://doaj.org/article/b14cac2d2b004d8aaaebbf26d7ffb853

On the interaction between fast tides and convection

Autor: Aurélie A V Astoul, Adrian J. Barker

Publikováno v: Monthly Notices of the Royal Astronomical Society: Letters. 506:L69-L73

The interaction between equilibrium tides and convection in stellar envelopes is often considered important for tidal evolution in close binary and extrasolar planetary systems. Its efficiency for fast tides has however long been controversial, when

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::436df2f2777301bb85072b22f7707532
https://doi.org/10.1093/mnrasl/slab077

Efficiency of tidal dissipation in slowly rotating fully convective stars or planets

Autor: Adrian J. Barker, Jérémie Vidal

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, In press, 000, pp.1-14
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 497 (4), pp.4472-4485. ⟨10.1093/mnras/staa2239⟩

Turbulent convection is thought to act as an effective viscosity in damping equilibrium tidal flows, driving spin and orbital evolution in close convective binary systems. Compared to mixing-length predictions, this viscosity ought to be reduced when

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82e822bc20dded6f7553a348cda8d8ae
http://arxiv.org/abs/2007.13392

Angular momentum transport, layering, and zonal jet formation by the GSF instability: nonlinear simulations at a general latitude

Autor: Chris A. Jones, Adrian J. Barker, Steven M. Tobias

Publikováno v: Monthly Notices of the Royal Astronomical Society

We continue our investigation into the nonlinear evolution of the Goldreich-Schubert-Fricke (GSF) instability in differentially rotating radiation zones. This instability may be a key player in transporting angular momentum in stars and giant planets

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da95711b259b31a4f0ce75e8c7767065