Excitation of a Primordial Cold Asteroid Belt as an Outcome of Planetary Instability

dc.contributor.authorDeienno, Rogerio
dc.contributor.authorIzidoro, Andre [UNESP]
dc.contributor.authorMorbidelli, Alessandro
dc.contributor.authorGomes, Rodney S.
dc.contributor.authorNesvorny, David
dc.contributor.authorRaymond, Sean N.
dc.contributor.institutionSouthwest Res Inst
dc.contributor.institutionInst Nacl Pesquisas Espaciais
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Cote Azur
dc.contributor.institutionObserv Nacl
dc.contributor.institutionUniv Bordeaux
dc.description.abstractThe main asteroid belt (MB) is low in mass but dynamically excited. Here we propose a new mechanism to excite the MB during the giant planet (the Nice model) instability, which is expected to feature repeated close encounters between Jupiter and one or more ice giants (jumping Jupiter or JJ). We show that, when Jupiter temporarily reaches a high-enough level of excitation, both in eccentricity and inclination, it induces strong forced vectors of eccentricity and inclination across the MB region. Because during the JJ instability Jupiter's orbit jumps around, the forced vectors keep changing both in magnitude and phase throughout the whole MB region. The entire cold primordial MB is thus excited as a natural outcome of the JJ instability. The level of such an excitation, however, is typically larger than the current orbital excitation observed in the MB. We show that the subsequent evolution of the solar system is capable of reshaping the resultant overexcited MB to its present-day orbital state, and that a strong mass depletion (similar to 90%) is associated with the JJ instability phase and its subsequent evolution throughout the age of the solar system.en
dc.description.affiliationSouthwest Res Inst, Dept Space Studies, 1050 Walnut St, Boulder, CO 80302 USA
dc.description.affiliationInst Nacl Pesquisas Espaciais, Ave Astronautas 1758, BR-12227010 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Grp Dinam Orbital & Planetol, Av Dr Ariberto Pereira da Cunha 333, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationUniv Cote Azur, UMR7293, Lab Lagrange, Observ Cote Azur,CNRS, Blvd Observ, F-06304 Nice 4, France
dc.description.affiliationObserv Nacl, Rua Gen Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil
dc.description.affiliationUniv Bordeaux, Lab Astrophys Bordeaux, CNRS, B18N,Allee Geoffroy St Hilaire, F-33615 Pessac, France
dc.description.affiliationUnespUniv Estadual Paulista, Grp Dinam Orbital & Planetol, Av Dr Ariberto Pereira da Cunha 333, BR-12516410 Guaratingueta, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipAgence Nationale pour la Recherche
dc.description.sponsorshipIdFAPESP: 2014/02013-5
dc.description.sponsorshipIdFAPESP: 2016/12686-2
dc.description.sponsorshipIdFAPESP: 2016/19556-7
dc.description.sponsorshipIdAgence Nationale pour la Recherche: ANR-13-BS05-0003-002
dc.identifier.citationAstrophysical Journal. Bristol: Iop Publishing Ltd, v. 864, n. 1, 11 p., 2018.
dc.publisherIop Publishing Ltd
dc.relation.ispartofAstrophysical Journal
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectminor planets, asteroids: general
dc.subjectplanets and satellites: dynamical evolution and stability
dc.titleExcitation of a Primordial Cold Asteroid Belt as an Outcome of Planetary Instabilityen
dcterms.rightsHolderIop Publishing Ltd
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