Growth and evolution of satellites in a Jovian massive disc

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dc.contributor.authorMoraes, R. A. [UNESP]
dc.contributor.authorKley, W.
dc.contributor.authorVieira Neto, E. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversität Tübingen
dc.date.accessioned2018-12-11T16:51:38Z
dc.date.available2018-12-11T16:51:38Z
dc.date.issued2018-03-21
dc.description.abstractThe formation of satellite systems in circum-planetary discs is considered to be similar to the formation of rocky planets in a proto-planetary disc, especially super-Earths. Thus, it is possible to use systems with large satellites to test formation theories that are also applicable to extrasolar planets. Furthermore, a better understanding of the origin of satellites might yield important information about the environment near the growing planet during the last stages of planet formation. In this work, we investigate the formation and migration of the Jovian satellites through N-body simulations. We simulated a massive, static, low-viscosity, circumplanetary disc in agreement with the minimum mass sub-nebula model prescriptions for its totalmass. In hydrodynamic simulations,we found no signs of gaps, therefore type II migration is not expected. Hence, we used analytic prescriptions for type I migration, eccentricity and inclination damping, and performed N-body simulations with damping forces added. Detailed parameter studies showed that the number of final satellites is strong influenced by the initial distribution of embryos, the disc temperature, and the initial gas density profile. For steeper initial density profiles, it is possible to form systems with multiple satellites in resonance while a flatter profile favours the formation of satellites close to the region of the Galilean satellites. We show that the formation of massive satellites such as Ganymede and Callisto can be achieved for hotter discs with an aspect ratio of H/r ~ 0.15 for which the ice line was located around 30RJ.en
dc.description.affiliationUNESP Univ. Estadual Paulista Grupo de Dinămica Orbital and Planetologia, Guaratinguetá
dc.description.affiliationInstitut für Astronomie und Astrophysik Universität Tübingen, Auf der Morgenstelle 10
dc.description.affiliationUnespUNESP Univ. Estadual Paulista Grupo de Dinămica Orbital and Planetologia, Guaratinguetá
dc.format.extent1347-1362
dc.identifierhttp://dx.doi.org/10.1093/mnras/stx3268
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, v. 475, n. 1, p. 1347-1362, 2018.
dc.identifier.doi10.1093/mnras/stx3268
dc.identifier.file2-s2.0-85041321628.pdf
dc.identifier.issn1365-2966
dc.identifier.issn0035-8711
dc.identifier.scopus2-s2.0-85041321628
dc.identifier.urihttp://hdl.handle.net/11449/170599
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.relation.ispartofsjr2,346
dc.relation.ispartofsjr2,346
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectPlanets and satellites: formation
dc.subjectPlanets and satellites: Individual: (Galilean satellites)
dc.titleGrowth and evolution of satellites in a Jovian massive discen
dc.typeArtigo

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