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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Comparison between Laplace-Lagrange secular theory and numerical simulation: the case of upsilon Andromedae planetary system

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Autor(es):
Camargo, Barbara C. B. [1] ; Winter, Othon C. [1] ; Foryta, Dietmar W. [2]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Sao Paulo State Univ UNESP, Grp Dinam Orbital & Planetol, Ave Ariberto Pereira da Cunha 333, BR-12516410 Guaratingueta, SP - Brazil
[2] Fed Univ Parana UFPR, Dept Phys, Caixa Postal 19044, BR-81531990 Curitiba, Parana - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: COMPUTATIONAL & APPLIED MATHEMATICS; v. 37, n. 1, SI, p. 122-132, DEC 2018.
Citações Web of Science: 1
Resumo

The large increase in exoplanet discoveries in the last two decades showed a variety of systems whose stability is not clear. In this work, we chose the upsilon Andromedae system as the basis of our studies in dynamical stability. This system has a range of possible masses, as a result of detection by radial velocity method, so we adopted a range of masses for the planets c and d and applied the secular theory. We also performed a numerical integration of the 3-body problem for the system over a time span of 30,000years. The results exposed similarities between the secular perturbation theory and the numerical integration, as well as the limits where the secular theory did not present good results. The analysis of the results provided hints for the maximum values of masses and eccentricities for stable planetary systems similar to upsilon Andromedae. (AU)

Processo FAPESP: 16/24561-0 - A relevância dos pequenos corpos em dinâmica orbital
Beneficiário:Othon Cabo Winter
Linha de fomento: Auxílio à Pesquisa - Temático