| Texto completo | |
| Autor(es): |
Ferraz-Mello, Sylvio
;
Menezes Bechara, Thayna
;
Alves-Silva, Raphael
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | European Physical Journal-Special Topics; v. N/A, p. 11-pg., 2025-09-09. |
| Resumo | |
The creep-tide theory is used to explore several aspects of the tidal evolution of the planetary system of the M-star LP 791-18. We discuss the early synchronization of the exo-Earth LP 791-18d and show that the trapping of its rotation in a 3:2 spin-orbit resonance would only have been possible if its eccentricity were approximately 0.04 or larger. The planet is likely in synchronous rotation. The perturbations of the other planets in the system do not allow the complete damping of the orbital eccentricity, and the resulting mechanical energy balance indicates that the tidal energy dissipated inside the planet may flow through the planetary surface at approximately 1 W/m2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathrm{W/m}<^>2$$\end{document}. (AU) | |
| Processo FAPESP: | 16/13750-6 - O Brasil no espaço: Astrofísica e Engenharia |
| Beneficiário: | Eduardo Janot Pacheco |
| Modalidade de apoio: | Auxílio à Pesquisa - Projetos Especiais |
| 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 |