A multidomain approach to asteroid families' identification

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dc.contributor.authorCarruba, V. [UNESP]
dc.contributor.authorDomingos, R. C.
dc.contributor.authorNesvorny, D.
dc.contributor.authorRoig, F.
dc.contributor.authorHuaman, M. E. [UNESP]
dc.contributor.authorSouami, D.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInstituto Nacional de Pesquisas Espaciais (INPE)
dc.contributor.institutionSWRI
dc.contributor.institutionON
dc.contributor.institutionUniv Paris 06
dc.contributor.institutionUPMC
dc.date.accessioned2014-12-03T13:09:14Z
dc.date.available2014-12-03T13:09:14Z
dc.date.issued2013-08-01
dc.description.abstractIt has been shown that large families are not limited to what found by hierarchical clustering methods in the domain of proper elements (a, e, sin(i)), which seems to be biased to find compact, relatively young clusters, but that there exists an extended population of objects with similar taxonomy and geometric albedo, which can extend to much larger regions in proper elements and frequencies domains: the family 'halo'. Numerical simulations can be used to provide estimates of the age of the family halo, which can then be compared with ages of the family obtained with other methods. Determining a good estimate of the possible orbital extension of a family halo is therefore quite important, if one is interested in determining its age and, possibly, the original ejection velocity field. Previous works have identified families' haloes by an analysis in proper elements domains, or by using Sloan Digital Sky Survey-Moving Object Catalog data, fourth release (SDSS-MOC4) multiband photometry to infer the asteroid taxonomy, or by a combination of the two methods. The limited number of asteroids for which geometric albedo was known until recently discouraged in the past the extensive use of this additional parameter, which is however of great importance in identifying an asteroid taxonomy. The new availability of geometric albedo data from the Wide-field Infrared Survey Explorer (WISE) mission for about 100 000 asteroids significantly increased the sample of objects for which such information, with some errors, is now known. In this work, we proposed a new method to identify families' haloes in a multidomain space composed by proper elements, SDSS-MOC4 (a*, i - z) colours, and WISE geometric albedo for the whole main belt (and the Hungaria and Cybele orbital regions). Assuming that most families were created by the breakup of an undifferentiated parent body, they are expected to be homogeneous in colours and albedo. The new method is quite effective in determining objects belonging to a family halo, with low percentages of likely interlopers, and results that are quite consistent in term of taxonomy and geometric albedo of the halo members.en
dc.description.affiliationUniv Estadual Paulista, UNESP, Grp Dinam Orbital & Planetol, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationInst Nacl Pesquisas Espaciais, BR-12227010 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationSWRI, Boulder, CO 80302 USA
dc.description.affiliationON, BR-20921400 Rio De Janeiro, RJ, Brazil
dc.description.affiliationUniv Paris 06, F-75005 Paris, France
dc.description.affiliationUPMC, Observ Paris, SYRTE, CNRS UMR 8630, F-75014 Paris, France
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Grp Dinam Orbital & Planetol, 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.sponsorshipNational Aeronautics and Space Administration
dc.description.sponsorshipPlanetary Science Division of the National Aeronautics and Space Administration
dc.description.sponsorshipIdFAPESP: 11/19863-3
dc.description.sponsorshipIdCNPq: 305453/2011-4
dc.format.extent2075-2096
dc.identifierhttp://dx.doi.org/10.1093/mnras/stt884
dc.identifier.citationMonthly Notices Of The Royal Astronomical Society. Oxford: Oxford Univ Press, v. 433, n. 3, p. 2075-2096, 2013.
dc.identifier.doi10.1093/mnras/stt884
dc.identifier.issn0035-8711
dc.identifier.lattes4750709016042276
dc.identifier.lattes6652169083464327
dc.identifier.orcid0000-0002-0516-0420
dc.identifier.urihttp://hdl.handle.net/11449/112107
dc.identifier.wosWOS:000322403800027
dc.language.isoeng
dc.publisherOxford University Press
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.relation.ispartofjcr5.194
dc.relation.ispartofsjr2,346
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCelestial mechanicsen
dc.subjectminor planetsen
dc.subjectasteroids: generalen
dc.titleA multidomain approach to asteroid families' identificationen
dc.typeArtigo
dcterms.licensehttp://www.oxfordjournals.org/access_purchase/self-archiving_policyb.html
dcterms.rightsHolderOxford Univ Press
unesp.author.lattes4750709016042276
unesp.author.lattes6652169083464327[2]
unesp.author.orcid0000-0003-2786-0740[1]
unesp.author.orcid0000-0002-0516-0420[2]
unesp.author.orcid0000-0003-3094-2755[5]
unesp.author.orcid0000-0001-7059-5116[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt

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