The Hoffmeister asteroid family

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dc.contributor.authorCarruba, V. [UNESP]
dc.contributor.authorNovaković, B.
dc.contributor.authorAljbaae, S. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversity of Belgrade
dc.date.accessioned2018-12-11T17:31:44Z
dc.date.available2018-12-11T17:31:44Z
dc.date.issued2017-01-01
dc.description.abstractThe Hoffmeister family is a C-type group located in the central main belt. Dynamically, it is important because of its interaction with the ν1C nodal secular resonance with Ceres, which significantly increases the dispersion in inclination of family members at a lower semimajor axis. As an effect, the distribution of inclination values of theHoffmeister family at a semimajor axis lower than its centre is significantly leptokurtic, and this can be used to set constraints on the terminal ejection velocity field of the family at the time it was produced. By performing an analysis of the time behaviour of the kurtosis of the νW component of the ejection velocity field [γ 2(νW)], as obtained from Gauss' equations, for different fictitious Hoffmeister families with different values of the ejection velocity field, we were able to exclude that the Hoffmeister family should be older than 335 Myr. Constraints from the currently observed inclination distribution of the Hoffmeister family suggest that its terminal ejection velocity parameter VEJ should be lower than 25ms-1. Results of aYarko-YORP Monte Carlo method to family dating, combined with other constraints from inclinations and γ 2(νW), indicate that the Hoffmeister family should be 220-40 +60 Myr old, with an ejection parameter VEJ = 20 ± 5 m s-1.en
dc.description.affiliationUNESP Universidade Estadual Paulista Grupo de Dinâmica Orbital e Planetologia
dc.description.affiliationDepartment of Astronomy Faculty of Mathematics University of Belgrade
dc.description.affiliationUnespUNESP Universidade Estadual Paulista Grupo de Dinâmica Orbital e Planetologia
dc.description.sponsorshipConsiliul National al Cercetarii Stiintifice
dc.description.sponsorshipNational Aeronautics and Space Administration
dc.description.sponsorshipUniversity of California
dc.format.extent4099-4105
dc.identifierhttp://dx.doi.org/10.1093/mnras/stw3022
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, v. 465, n. 4, p. 4099-4105, 2017.
dc.identifier.doi10.1093/mnras/stw3022
dc.identifier.issn1365-2966
dc.identifier.issn0035-8711
dc.identifier.scopus2-s2.0-85014830500
dc.identifier.urihttp://hdl.handle.net/11449/178705
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.subjectAsteroids: general
dc.subjectAsteroids: individual: Hoffmeister
dc.subjectCelestialmechanics
dc.subjectMinor planets
dc.titleThe Hoffmeister asteroid familyen
dc.typeArtigo

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