Analysis of the orbital evolution of exoplanets

Show simple item record Carvalho, J. P. S. Moraes, Rodolpho Vilhena de [UNIFESP] Prado, A. F. B. A. Mourao, D. C. Winter, O. C. 2020-07-31T12:47:41Z 2020-07-31T12:47:41Z 2016
dc.identifier.citation Computational & Applied Mathematics. Heidelberg, v. 35, n. 3, p. 847-863, 2016.
dc.identifier.issn 0101-8205
dc.description.abstract An exoplanet, or extrasolar planet, is a planet that does not orbit the Sun, but is around a different star, stellar remnant, or brown dwarf. Up to now, about 1900 exoplanets were discovered. To better understand the dynamics of these exoplanets, a study with respect to possible collisions of the planet with the central star is shown here. We present an expanded model in a small parameter that takes into account up to the fifth order to analyze the effect of this potential in the orbital elements of the extrasolar planet. Numerical simulations were also performed using the N-body simulations, using the software Mercury, to compare the results with the ones obtained by the analytical model. The numerical simulations are presented in two stages: one considering the celestial bodies as point masses and the other one taking into account their dimensions. This analysis showed that the planet collided with the central star in the moment of the first inversion for orbits with high inclinations in various situations. The results of the simulations of the equations developed in this study are consistent with the N-body numerical simulations. We analyze also the flip of the inclination taking into account the coupling of the perturbations of the third body, effect due to the precession of periastron and the tide effect. In general, we find that such perturbations combined delay the time of first inversion, but do not keep the planet in a prograde or retrograde orbit. en
dc.description.sponsorship Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorship Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorship Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent 847-863
dc.language.iso eng
dc.publisher Springer Heidelberg
dc.relation.ispartof Computational & Applied Mathematics
dc.rights Acesso restrito
dc.subject Astrodynamics en
dc.subject Planetary systems en
dc.subject Stellar dynamics en
dc.subject Exoplanets and third-body perturbation en
dc.title Analysis of the orbital evolution of exoplanets en
dc.type Artigo
dc.description.affiliation Univ Fed Recocavo, Ctr Ciencia & Tecnol Energia & Sustentabilidade, UFRB, BR-44085132 Feira De Santana, BA, Brazil
dc.description.affiliation Univ Fed Sao Paulo, Inst Ciencia & Tecnol, UNIFESP, BR-12231280 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliation INPE, Div Space Mech & Control, BR-12227010 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliation Univ Estadual Paulista, UNESP, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationUnifesp Departamento de Ciência e Tecnologia, Universidade Federal de São Paulo, São José dos Campos, Brazil
dc.description.sponsorshipID CNPq: 306953/2014-5
dc.description.sponsorshipID CNPq: 304700/2009-6
dc.description.sponsorshipID CNPq: 303070/2011-0
dc.description.sponsorshipID FAPESP: 2011/05671-5
dc.description.sponsorshipID FAPESP: 2012/21023-6
dc.description.sponsorshipID FAPESP: 2014/06688-7
dc.description.sponsorshipID FAPESP: 2011/08171-3
dc.description.sponsorshipID FAPESP: 2011/13101-4
dc.identifier.doi 10.1007/s40314-015-0270-z
dc.description.source Web of Science
dc.identifier.wos WOS:000385151000013
dc.coverage Heidelberg
dc.citation.volume 35
dc.citation.issue 3


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