Dynamic evolution due to tide in differentiated exoplanets and satellites

• Grant number: 16/20189-9
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: January 01, 2017
• End date: February 28, 2022
• Field of knowledge: Physical Sciences and Mathematics - Astronomy - Positional Astronomy and Celestial Mechanics
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Sylvio Ferraz de Mello
• Grantee: Hugo Alberto Folonier
• Host Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 16/13750-6 - Brazil in space: Astrophysics and Engineering, AP.ESP
• Associated scholarship(s): 19/11276-3 - Extension of the Newtonian creep tide theory to the spatial case, BE.EP.PD

Abstract

This project has the purpose to study the dynamic evolution due to tidal forces produced by the interaction of close-in differentiated bodies (star-planet or planet-satellite). Recently, a new tidal rheophysical theory was developed in the IAG-USP, which takes into account the nature (rheology) of objects (Ferraz-Mello, 2013; 2015a), and its extension to differentiated bodies (Folonier & Ferraz-Mello, 2016). This extension is the first model of the literature, which allows the study of the dynamical tides in complex systems, where the hypothesis of homogeneity cannot be applied. Because it is a recent theory, only a few examples might be addressed. In addition, there are points at which the theory needs to be improved, as the inclusion of systems in which the axes of rotation of the bodies are inclined with respect to the plane of the relative orbital motion. In this proposal, we want to introduce improvements in the development of the theory and its application to many real systems star-planet and planet-satellite whose dynamic evolution can be directly affected by the internal structure of differentiated bodies. (AU)

Scientific publications

(10)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ZOPPETTI, F. A.; BEAUGE, C.; LEIVA, A. M.; FOLONIER, H.. A self-consistent weak friction model for the tidal evolution of circumbinary planets. Astronomy & Astrophysics, v. 627, JUL 9 2019. (16/20189-9)

FOLONIER, H. A.; FERRAZ-MELLO, S.; ANDRADE-INES, E.. Tidal synchronization of close-in satellites and exoplanets. III. Tidal dissipation revisited and application to Enceladus. CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY, v. 130, n. 12, DEC 2018. (16/20189-9, 16/13750-6, 14/13407-4, 17/10072-0)

GOMES, G. O.; FOLONIER, H. A.; FERRAZ-MELLO, S.. Rotation and figure evolution in the creep tide theory: a new approach and application to Mercury. CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY, v. 131, n. 12, DEC 2019. (17/25224-0, 16/20189-9, 16/13750-6)

ZOPPETTI, F. A.; FOLONIER, H.; LEIVA, A. M.; GOMES, G. O.. Orbital evolution of circumbinary planets due to creep tides. Astronomy & Astrophysics, v. 666, p. 14-pg., 2022-10-10. (16/20189-9, 16/13750-6)

FERRAZ-MELLO, SYLVIO; BEAUGE, CRISTIAN; FOLONIER, HUGO A.; GOMES, GABRIEL O.. Tidal friction in satellites and planets. The new version of the creep tide theory. European Physical Journal-Special Topics, v. 229, n. 8, p. 22-pg., 2020-05-01. (17/25224-0, 16/20189-9, 16/13750-6)

ZOPPETTI, F. A.; BEAUGE, C.; LEIVA, A. M.; FOLONIER, H.. A self-consistent weak friction model for the tidal evolution of circumbinary planets. ASTRONOMY & ASTROPHYSICS, v. 627, p. 12-pg., 2019-07-09. (16/20189-9)

FERRAZ-MELLO, SYLVIO; BEAUGE, CRISTIAN; FOLONIER, HUGO A.; GOMES, GABRIEL O.. Tidal friction in satellites and planets. The new version of the creep tide theory. European Physical Journal-Special Topics, v. 229, n. 8, SI, p. 1441-1462, MAY 2020. (16/20189-9, 16/13750-6, 17/25224-0)

ZOPPETTI, F. A.; FOLONIER, H.; LEIVA, A. M.; BEAUGE, C.. Creep tide model for the three-body problem The rotational evolution of a circumbinary planet. Astronomy & Astrophysics, v. 651, JUL 9 2021. (16/13750-6, 16/20189-9)

FOLONIER, HUGO A.; BOUE, GWENAEL; FERRAZ-MELLO, SYLVIO. Ellipsoidal equilibrium figure and Cassini states of rotating planets and satellites deformed by a tidal potential in the spatial case. CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY, v. 134, n. 1, FEB 2022. (16/13750-6, 19/11276-3, 16/20189-9)

FERRAZ-MELLO, SYLVIO; FOLONIER, HUGO A.; GOMES, GABRIEL O.. Creep tide theory: equations for differentiated bodies with aligned layers. CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY, v. 134, n. 3, p. 12-pg., 2022-06-01. (16/20189-9, 17/25224-0, 16/13750-6)