On the age of the Nele asteroid family

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dc.contributor.authorCarruba, V [UNESP]
dc.contributor.authorVokrouhlicky, D.
dc.contributor.authorNesvorny, D.
dc.contributor.authorAljbaae, S. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionSouthwest Res Inst
dc.contributor.institutionCharles Univ Prague
dc.date.accessioned2018-11-29T15:54:41Z
dc.date.available2018-11-29T15:54:41Z
dc.date.issued2018-06-01
dc.description.abstractThe Nele group, formerly known as the Iannini family, is one of the youngest asteroid families in the main belt. Previously, it has been noted that the pericentre longitudes (omega) over bar and nodal longitudes Omega of its largest member asteroids are clustered at the present time, therefore suggesting that the collisional break-up of parent body must have happened recently. Here, we verify this conclusion by detailed orbit-propagation of a synthetic Nele family and show that the current level of clustering of secular angles of the largest Nele family members requires an approximate age limit of 4.5 Myr. Additionally, we make use of an updated and largely extended Nele membership to obtain, for the first time, an age estimate of this family using the backward integration method. Convergence of the secular angles in a purely gravitational model and in a model including the non-gravitational forces caused by the Yarkovsky effect are both compatible with an age younger than 7 Myr. More accurate determination of the Nele family age would require additional data about the spin state of its members.en
dc.description.affiliationSao Paulo State Univ UNESP, Sch Nat Sci & Engn, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationSouthwest Res Inst, Dept Space Studies, Boulder, CO 80302 USA
dc.description.affiliationCharles Univ Prague, Inst Astron, V Holesovickach 2, CZ-18000 Prague 8, Czech Republic
dc.description.affiliationUnespSao Paulo State Univ UNESP, Sch Nat Sci & Engn, BR-12516410 Guaratingueta, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCzech Science Foundation
dc.description.sponsorshipNASA
dc.description.sponsorshipNational Aeronautics and Space Administration
dc.description.sponsorshipIdFAPESP: 16/04476-8
dc.description.sponsorshipIdFAPESP: 2013/15357-1
dc.description.sponsorshipIdCNPq: 305453/2011-4
dc.description.sponsorshipIdCzech Science Foundation: GA18-06083S
dc.format.extent1308-1317
dc.identifierhttp://dx.doi.org/10.1093/mnras/sty777
dc.identifier.citationMonthly Notices Of The Royal Astronomical Society. Oxford: Oxford Univ Press, v. 477, n. 1, p. 1308-1317, 2018.
dc.identifier.doi10.1093/mnras/sty777
dc.identifier.fileWOS000432660300091.pdf
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/11449/166141
dc.identifier.wosWOS:000432660300091
dc.language.isoeng
dc.publisherOxford Univ Press
dc.relation.ispartofMonthly Notices Of The Royal Astronomical Society
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectminor planets, asteroids: general
dc.subjectminor planets, asteroids: individual: Nele
dc.subjectcelestial mechanics
dc.titleOn the age of the Nele asteroid familyen
dc.typeArtigo
dcterms.licensehttp://www.oxfordjournals.org/access_purchase/self-archiving_policyb.html
dcterms.rightsHolderOxford Univ Press

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