SIMBAD references

2020MNRAS.494.3141L - Mon. Not. R. Astron. Soc., 494, 3141-3155 (2020)

Tidal oscillations of rotating hot Jupiters.

LEE U.

Abstract (from CDS):

We calculate small amplitude gravitational and thermal tides of uniformly rotating hot Jupiters composed of a nearly isentropic convective core and a geometrically thin radiative envelope. We treat the fluid in the convective core as a viscous fluid and solve linearized Navier-Stokes equations to obtain tidal responses of the core, assuming that the Ekman number, Ek, is a constant parameter. In the radiative envelope, we take account of the effects of radiative dissipations on the responses. The properties of tidal responses depend on thermal time-scales τ* in the envelope and Ekman number, Ek, in the core and on whether the forcing frequency ω is in the inertial range or not, where the inertial range is defined by |ω| <= 2Ω for the rotation frequency Ω. If Ek >= 10–7, the viscous dissipation in the core is dominating the thermal contributions in the envelope for τ* >= 1 d. If Ek <= 10–7, however, the viscous dissipation is comparable to or smaller than the thermal contributions and the envelope plays an important role to determine the tidal torques. If the forcing is in the inertial range, frequency resonance of the tidal forcing with core inertial modes significantly affects the tidal torques, producing numerous resonance peaks of the torque. Depending on the sign of the torque in the peaks, we suggest that there exist cases in which the resonance with core inertial modes hampers the process of synchronization between the spin and orbital motion of the planets.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): hydrodynamics - waves - planet-star interactions - stars: oscillations - stars: rotation

Simbad objects: 1

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2020MNRAS.494.3141L and select 'bookmark this link' or equivalent in the popup menu