Exoplanets in binary star systems: on the switch from prograde to retrograde orbits

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dc.contributor.author Carvalho, Jean Paulo de Sousa
dc.contributor.author Mourão, Daniela Cardoso de
dc.contributor.author Vilhena de Moraes, Rodolpho [UNIFESP]
dc.contributor.author Prado, Antonio Fernando Bertachini de Almeida
dc.contributor.author Winter, Othon Cabo
dc.date.accessioned 2019-01-21T10:30:15Z
dc.date.available 2019-01-21T10:30:15Z
dc.date.issued 2016
dc.identifier https://doi.org/10.1007/s10569-015-9650-3
dc.identifier.citation Celestial Mechanics & Dynamical Astronomy. Dordrecht, v. 124, n. 1, p. 73-96, 2016.
dc.identifier.issn 0923-2958
dc.identifier.uri http://repositorio.unifesp.br/handle/11600/49653
dc.description.abstract The eccentric Kozai-Lidov mechanism, based on the secular theory, has been proposed as a mechanism that plays an important role in producing orbits that switch from prograde to retrograde. In the present work we study the secular dynamics of a triple system composed of a Sun-like central star and a Jupiter-like planet, which are under the gravitational influence of another perturbing star (brown dwarf). The perturbation potential is developed in closed form up to the fifth order in a small parameter (), where is the semimajor axis of the extrasolar planet and is the semimajor axis of the perturbing star. To eliminate the short-period terms of the perturbation potential, the double-average method is applied. In this work we do not eliminate the nodes, a standard method in the literature, before deriving the equations of motion. The main goal is to study the effects of the higher-order terms of the expansion of the perturbing force due to the third body in the orbital evolution of the planet. In particular, we investigate the inclination and the shape (eccentricity) of these orbits. We show the importance of the higher-order terms in changing the inversion times of the flip, i.e., the times where the inclination of the inner planet flips from prograde to retrograde trajectories. We also show the dependence of the first flip with respect to the semimajor axis and eccentricity of the orbit of the planet. The general conclusion is that the analytical model increases its accuracy with the inclusion of higher-order terms. We also performed full numerical integrations using the Bulirsch-Stoer method available in the Mercury package for comparison with the analytical model. The results obtained with the equations developed in this work are in accordance with direct numerical simulations. en
dc.description.sponsorship CNPq (National Council for Scientific and Technological Development)-Brazil [306953/2014-5, 304700/2009-6, 303070/2011-0]
dc.description.sponsorship FAPESP (Foundation to Support Research in Sao Paulo State) SP-Brazil [2011/08171-3, 2011/05671-5, 2012/21023-6, 2014/06688-7]
dc.description.sponsorship CAPES
dc.format.extent 73-96
dc.language.iso eng
dc.publisher Springer
dc.relation.ispartof Celestial Mechanics & Dynamical Astronomy
dc.rights Acesso restrito
dc.subject Three-Body Problem en
dc.subject Orbital Perturbation en
dc.subject Exoplanets en
dc.subject Flip Of Inclination en
dc.subject Lidov-Kozai MechanismArtificial Satellite en
dc.subject Secular Evolution en
dc.subject Planetary Systems en
dc.subject Hot Jupiters en
dc.subject Dynamics en
dc.subject Perturbations en
dc.subject Eccentricity en
dc.subject Migration en
dc.subject Bodies en
dc.title Exoplanets in binary star systems: on the switch from prograde to retrograde orbits en
dc.type Artigo
dc.description.affiliation Centro de Ciência e Tecnologia em Energia e Sustentabilidade. Universidade Federal do Recôcavo da Bahia (UFRB), Feira de Santana, Brazil
dc.description.affiliation Instituto de Ciência e Tecnologia. Universidade Federal de São Paulo (UNIFESP), São José dos Campos, Brazil
dc.description.affiliation Division of Space Mechanics and Control. INPE. São José dos Campos, Brazil
dc.description.affiliation Universidade Estadual Paulista (UNESP). Guaratinguetá, Brazil
dc.description.affiliationUnifesp Instituto de Ciência e Tecnologia. Universidade Federal de São Paulo (UNIFESP), 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: 2011/08171-3
dc.description.sponsorshipID FAPESP: 2011/05671-5
dc.description.sponsorshipID FAPESP: 2012/21023-6
dc.description.sponsorshipID FAPESP: 2014/06688-7
dc.identifier.doi 10.1007/s10569-015-9650-3
dc.description.source Web of Science
dc.identifier.wos WOS:000368021000004



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