THE EUPHROSYNE FAMILY'S CONTRIBUTION TO THE LOW ALBEDO NEAR-EARTH ASTEROIDS

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dc.contributor.authorMasiero, Joseph R.
dc.contributor.authorCarruba, V. [UNESP]
dc.contributor.authorMainzer, A.
dc.contributor.authorBauer, J. M.
dc.contributor.authorNugent, C.
dc.contributor.institutionCALTECH
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-26T16:16:59Z
dc.date.available2018-11-26T16:16:59Z
dc.date.issued2015-08-20
dc.description.abstractThe Euphrosyne asteroid family is uniquely situated at high inclination in the outer Main Belt, bisected by the n6 secular resonance. This large, low albedo family may thus be an important contributor to specific subpopulations of the near-Earth objects. We present simulations of the orbital evolution of Euphrosyne family members from the time of breakup to the present day, focusing on those members that move into near-Earth orbits. We find that family members typically evolve into a specific region of orbital element-space, with semimajor axes near similar to 3 AU, high inclinations, very large eccentricities, and Tisserand parameters similar to Jupiter family comets. Filtering all known Near-Earth objects (NEOs) with our derived orbital element limits, we find that the population of candidate objects is significantly lower in albedo than the overall NEO population, although many of our candidates are also darker than the Euphrosyne family, and may have properties more similar to comet nuclei. Followup characterization of these candidates will enable us to compare them to known family properties, and confirm which ones originated with the breakup of (31) Euphrosyne.en
dc.description.affiliationCALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
dc.description.affiliationUniv Estadual Paulista, Dept Matemat, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationCALTECH, Infrared Proc & Anal Ctr, Pasadena, CA 91125 USA
dc.description.affiliationUnespUniv Estadual Paulista, Dept Matemat, BR-12516410 Guaratingueta, SP, Brazil
dc.description.sponsorshipNASA Planetary Geology and Geophysics grant
dc.description.sponsorshipJPL internal Research and Technology Development program
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipNational Aeronautics and Space Administration
dc.description.sponsorshipPlanetary Science Division of the National Aeronautics and Space Administration
dc.description.sponsorshipIdFAPESP: 2014/06762-2
dc.format.extent8
dc.identifierhttp://dx.doi.org/10.1088/0004-637X/809/2/179
dc.identifier.citationAstrophysical Journal. Bristol: Iop Publishing Ltd, v. 809, n. 2, 8 p., 2015.
dc.identifier.doi10.1088/0004-637X/809/2/179
dc.identifier.fileWOS000361655100072.pdf
dc.identifier.issn0004-637X
dc.identifier.urihttp://hdl.handle.net/11449/160848
dc.identifier.wosWOS:000361655100072
dc.language.isoeng
dc.publisherIop Publishing Ltd
dc.relation.ispartofAstrophysical Journal
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectminor planets
dc.subjectasteroids: general
dc.titleTHE EUPHROSYNE FAMILY'S CONTRIBUTION TO THE LOW ALBEDO NEAR-EARTH ASTEROIDSen
dc.typeArtigo
dcterms.licensehttp://iopscience.iop.org/page/copyright
dcterms.rightsHolderIop Publishing Ltd

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