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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Tidal friction in satellites and planets. The new version of the creep tide theory

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Author(s):
Ferraz-Mello, Sylvio [1] ; Beauge, Cristian [2] ; Folonier, Hugo A. [1] ; Gomes, Gabriel O. [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Sao Paulo - Brazil
[2] Univ Nacl Cordoba, Observ Astron, Cordoba - Argentina
Total Affiliations: 2
Document type: Journal article
Source: European Physical Journal-Special Topics; v. 229, n. 8, SI, p. 1441-1462, MAY 2020.
Web of Science Citations: 1
Abstract

Paper on the creep tide theory and its applications to satellites and planets with emphasis on a new set of differential equations allowing easier numerical studies. The creep tide theory is a new paradigm that does not fix a priori the tidal deformation of the body, but considers the deformation as a low-Reynolds-number flow. The evolution under tidal forces is ruled by an approximate solution of the Navier-Stokes equation depending on the body's viscosity with no ad hoc assumptions on its shape and orientation. It reproduces closely the results of Darwinian theories in the case of gaseous planets and stars, but the results are completely different in the case of stiff satellites and planets. It explains the tidal dissipations of Enceladus and Mimas. The extension of the theory to nonhomogeneous icy satellites with a subsurface ocean allows the amplitude of the forced oscillations around synchronization (librations) to be better determined. (AU)

FAPESP's process: 16/13750-6 - Brazil in space: Astrophysics and Engineering
Grantee:Eduardo Janot Pacheco
Support type: Research Projects - Thematic Grants
FAPESP's process: 17/25224-0 - Application of the planetary tides theory to exoplanets and planetary satellites
Grantee:Gabriel de Oliveira Gomes
Support type: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 16/20189-9 - Dynamic evolution due to tide in differentiated exoplanets and satellites
Grantee:Hugo Alberto Folonier
Support type: Scholarships in Brazil - Post-Doctorate