| Texto completo | |
| Autor(es): |
Gomes, Vivian Martins
;
Bertachini de Almeida Prado, Antonio Fernando
;
Golebiewska, Justyna
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | SCIENTIFIC WORLD JOURNAL; v. N/A, p. 6-pg., 2013-01-01. |
| Resumo | |
The present research studies the motion of a particle or a spacecraft that comes from an orbit around the Sun, which can be elliptic or hyperbolic, and that makes a passage close enough to the Earth such that it crosses its atmosphere. The idea is to measure the Sun-particle two-body energy before and after this passage in order to verify its variation as a function of the periapsis distance, angle of approach, and velocity at the periapsis of the particle. The full system is formed by the Sun, the Earth, and the particle or the spacecraft. The Sun and the Earth are in circular orbits around their center of mass and the motion is planar for all the bodies involved. The equations of motion consider the restricted circular planar three-body problem with the addition of the atmospheric drag. The initial conditions of the particle or spacecraft (position and velocity) are given at the periapsis of its trajectory around the Earth. (AU) | |
| Processo FAPESP: | 11/13101-4 - Estudo de manobras orbitais para escape de colisão de um veículo espacial com grupos de partículas |
| Beneficiário: | Vivian Martins Gomes |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |
| Processo FAPESP: | 11/09310-7 - Estudo orbital do movimento de veículos espaciais |
| Beneficiário: | Antônio Fernando Bertachini de Almeida Prado |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 11/08171-3 - Dinâmica orbital de pequenos corpos |
| Beneficiário: | Othon Cabo Winter |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |