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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 synchronization of close-in satellites and exoplanets. III. Tidal dissipation revisited and application to Enceladus

Full text
Author(s):
Folonier, H. A. [1] ; Ferraz-Mello, S. [1] ; Andrade-Ines, E. [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY; v. 130, n. 12 DEC 2018.
Web of Science Citations: 1
Abstract

This paper deals with a new formulation of the creep tide theory (Ferraz-Mello in Celest Mech Dyn Astron 116:109, 2013Paper I) and with the tidal dissipation predicted by the theory in the case of stiff bodies whose rotation is not synchronous but is oscillating around the synchronous state with a period equal to the orbital period. We show that the tidally forced libration influences the amount of energy dissipated in the body and the average perturbation of the orbital elements. This influence depends on the libration amplitude and is generally neglected in the study of planetary satellites. However, they may be responsible for a 27% increase in the dissipation of Enceladus. The relaxation factor necessary to explain the observed dissipation of Enceladus (Pas). For comparison purposes, the results are extended also to the case of Mimas and are consistent with the negligible dissipation and the absence of observed tectonic activity. The corrections of some mistakes and typos of paper II (Ferraz-Mello in Celest Mech Dyn Astron 122:359, 2015) are included at the end of the paper. (AU)

FAPESP's process: 16/20189-9 - Dynamic evolution due to tide in differentiated exoplanets and satellites
Grantee:Hugo Alberto Folonier
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 16/13750-6 - Brazil in space: Astrophysics and Engineering
Grantee:Eduardo Janot Pacheco
Support Opportunities: Special Projects
FAPESP's process: 14/13407-4 - Astrometry in the solar neighbourhood, preparation and exploration of space missions
Grantee:Ramachrisna Teixeira
Support Opportunities: Regular Research Grants
FAPESP's process: 17/10072-0 - Creep tide theory for systems with inclined rotation axis
Grantee:Eduardo Andrade Inês
Support Opportunities: Scholarships in Brazil - Post-Doctoral