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dc.contributor.author
Brunini, Adrian
dc.date.available
2024-04-04T13:58:48Z
dc.date.issued
2023-05
dc.identifier.citation
Brunini, Adrian; The origin of an overpopulation of contact binary plutinos; Oxford University Press; Monthly Notices of the Royal Astronomical Society: Letters; 524; 1; 5-2023; L45-L49
dc.identifier.uri
http://hdl.handle.net/11336/231969
dc.description.abstract
In the trans-Neptunian region, 10-25% of binary objects are contact binaries. However, the amplitude of the light curves of a sample of Plutinos indicates that there this fraction could reach 50 % or even more. This remarkable difference cannot be explained by the single action of the Kozai cycles and tidal friction (KCTF), nor it can be assumed that it is due to a formation mechanism different from the one that gave rise to the binaries of the other hot populations. In this work we present numerical simulations showing that a super abundance of contact binaries occurs as a natural consequence of the coupling between the dynamical evolution of the mutual orbit of the binaries subject to the action of KCTF, and the variation of the heliocentric orbit of the binary centre of mass due to the perturbations of the giant planets. This same mechanism affects the other populations, but to a lesser extent, because the variations of the heliocentric orbits are much smaller for them than for objects that are within the 3:2 mean motion resonance with Neptune. This mechanism also increases the fraction of tight binaries in the Plutino population, where it could reach ∼ 30%.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Oxford University Press
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Kuiper Belt
dc.subject.classification
Otras Ciencias Naturales y Exactas
dc.subject.classification
Otras Ciencias Naturales y Exactas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
The origin of an overpopulation of contact binary plutinos
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-04-03T10:37:35Z
dc.identifier.eissn
1745-3933
dc.journal.volume
524
dc.journal.number
1
dc.journal.pagination
L45-L49
dc.journal.pais
Reino Unido
dc.journal.ciudad
Oxford
dc.description.fil
Fil: Brunini, Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
dc.journal.title
Monthly Notices of the Royal Astronomical Society: Letters
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnrasl/slad076
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnrasl/article/524/1/L45/7194248
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