| Texto completo | |
| Autor(es): |
Folonier, Hugo
;
Ferraz-Mello, Sylvio
;
Alves-Silva, Raphael
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY; v. 137, n. 2, p. 25-pg., 2025-04-01. |
| Resumo | |
This paper extends the creep tide theory to exoplanetary systems with significant obliquities. The extended theory allows us to obtain the stellar and planetary hydrodynamic equilibrium tides and the evolution of the rotational state of the bodies. The dynamic ellipsoidal figure of equilibrium of the body is calculated taking into account that its reaction to external forces is delayed by its viscosity. The derived equations are used to determine the motion of the tidal bulge of the planetary companion CoRoT-3b (a brown dwarf) and its host star. We show how the tides deform the figure of the companion and how its tidal bulge moves close to the substellar meridian from one hemisphere to another. The stellar lag is mostly positive and is braking the star rotation. (AU) | |
| Processo FAPESP: | 16/20189-9 - Evolução dinâmica devida à maré em exoplanetas e satélites diferenciados |
| Beneficiário: | Hugo Alberto Folonier |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 23/03060-6 - Desenvolvimento do modelo de maré de fluência (creep tide) no caso de obliquidade diferente de zero |
| Beneficiário: | Raphael Alves Silva |
| Modalidade de apoio: | Bolsas no Brasil - Programa Capacitação - Treinamento Técnico |
| Processo FAPESP: | 16/13750-6 - O Brasil no espaço: Astrofísica e Engenharia |
| Beneficiário: | Eduardo Janot Pacheco |
| Modalidade de apoio: | Auxílio à Pesquisa - Projetos Especiais |