Spin pairs in the Koronis asteroid family
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.pss.2020.105083 http://hdl.handle.net/11449/202076 |
Resumo: | Asteroid groups may either form because of collisions or the rotational failure of a parent body. Collisional asteroid families tend to be more spread in proper element domains, while young spin clusters are usually much more compact. Recently, it has been shown that young spin clusters may form at higher rates in extremely young asteroid families (families younger than ≃3 Myr) than in more evolved groups. Among asteroid families, the Koronis family is a natural laboratory to test this phenomenon. While the family itself is very evolved, with an estimated age of more than 2 Byr, two young sub-families are known to be located among Koronis members: the extremely young family of Karin, with an age of 5.75±0.05 Myr, and the relatively young sub-family of Koronis(2), with an age of 10±5 Myr. This fact allows studying the occurrence of young spin clusters in extremely young, young and evolved asteroid populations, all sharing the same physical properties. Using methods based on backward numerical integrations, we identify one possible pair candidate in the Karin family, and retrieved the pair 1741–258640 recently found in other works. No convincing spin pair candidate was found in the Koronis(2) sub-family. This suggests that the occurrence of young spin clusters in families older than ≃ 3 Myr may be a rarer event than what previously thought. |
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Spin pairs in the Koronis asteroid familyAsteroidsCelestial mechanicsGeneralIndividualKoronisMinor planetsAsteroid groups may either form because of collisions or the rotational failure of a parent body. Collisional asteroid families tend to be more spread in proper element domains, while young spin clusters are usually much more compact. Recently, it has been shown that young spin clusters may form at higher rates in extremely young asteroid families (families younger than ≃3 Myr) than in more evolved groups. Among asteroid families, the Koronis family is a natural laboratory to test this phenomenon. While the family itself is very evolved, with an estimated age of more than 2 Byr, two young sub-families are known to be located among Koronis members: the extremely young family of Karin, with an age of 5.75±0.05 Myr, and the relatively young sub-family of Koronis(2), with an age of 10±5 Myr. This fact allows studying the occurrence of young spin clusters in extremely young, young and evolved asteroid populations, all sharing the same physical properties. Using methods based on backward numerical integrations, we identify one possible pair candidate in the Karin family, and retrieved the pair 1741–258640 recently found in other works. No convincing spin pair candidate was found in the Koronis(2) sub-family. This suggests that the occurrence of young spin clusters in families older than ≃ 3 Myr may be a rarer event than what previously thought.California Institute of TechnologyJet Propulsion LaboratoryNational Aeronautics and Space AdministrationNational Research CouncilFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)São Paulo State University (UNESP) School of Natural Sciences and EngineeringNational Space Research Institute (INPE) Division of Space Mechanics and Control, C.P. 515Federal University of São Paulo (UNIFESP) Science and Technology InstituteSão Paulo State University (UNESP) School of Natural Sciences and EngineeringFAPESP: 16/04476-8CNPq: 301577/2017-0Universidade Estadual Paulista (Unesp)Division of Space Mechanics and ControlUniversidade de São Paulo (USP)Carruba, V. [UNESP]Aljbaae, S.Fazenda, L.Barletta, W. [UNESP]Lucchini, A. [UNESP]Martins, B. [UNESP]Furlaneto, P. [UNESP]2020-12-12T02:49:13Z2020-12-12T02:49:13Z2020-11-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.pss.2020.105083Planetary and Space Science, v. 193.0032-0633http://hdl.handle.net/11449/20207610.1016/j.pss.2020.1050832-s2.0-85090414010Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPlanetary and Space Scienceinfo:eu-repo/semantics/openAccess2024-07-02T14:29:32Zoai:repositorio.unesp.br:11449/202076Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-07-02T14:29:32Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Spin pairs in the Koronis asteroid family |
title |
Spin pairs in the Koronis asteroid family |
spellingShingle |
Spin pairs in the Koronis asteroid family Carruba, V. [UNESP] Asteroids Celestial mechanics General Individual Koronis Minor planets |
title_short |
Spin pairs in the Koronis asteroid family |
title_full |
Spin pairs in the Koronis asteroid family |
title_fullStr |
Spin pairs in the Koronis asteroid family |
title_full_unstemmed |
Spin pairs in the Koronis asteroid family |
title_sort |
Spin pairs in the Koronis asteroid family |
author |
Carruba, V. [UNESP] |
author_facet |
Carruba, V. [UNESP] Aljbaae, S. Fazenda, L. Barletta, W. [UNESP] Lucchini, A. [UNESP] Martins, B. [UNESP] Furlaneto, P. [UNESP] |
author_role |
author |
author2 |
Aljbaae, S. Fazenda, L. Barletta, W. [UNESP] Lucchini, A. [UNESP] Martins, B. [UNESP] Furlaneto, P. [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Division of Space Mechanics and Control Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Carruba, V. [UNESP] Aljbaae, S. Fazenda, L. Barletta, W. [UNESP] Lucchini, A. [UNESP] Martins, B. [UNESP] Furlaneto, P. [UNESP] |
dc.subject.por.fl_str_mv |
Asteroids Celestial mechanics General Individual Koronis Minor planets |
topic |
Asteroids Celestial mechanics General Individual Koronis Minor planets |
description |
Asteroid groups may either form because of collisions or the rotational failure of a parent body. Collisional asteroid families tend to be more spread in proper element domains, while young spin clusters are usually much more compact. Recently, it has been shown that young spin clusters may form at higher rates in extremely young asteroid families (families younger than ≃3 Myr) than in more evolved groups. Among asteroid families, the Koronis family is a natural laboratory to test this phenomenon. While the family itself is very evolved, with an estimated age of more than 2 Byr, two young sub-families are known to be located among Koronis members: the extremely young family of Karin, with an age of 5.75±0.05 Myr, and the relatively young sub-family of Koronis(2), with an age of 10±5 Myr. This fact allows studying the occurrence of young spin clusters in extremely young, young and evolved asteroid populations, all sharing the same physical properties. Using methods based on backward numerical integrations, we identify one possible pair candidate in the Karin family, and retrieved the pair 1741–258640 recently found in other works. No convincing spin pair candidate was found in the Koronis(2) sub-family. This suggests that the occurrence of young spin clusters in families older than ≃ 3 Myr may be a rarer event than what previously thought. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:49:13Z 2020-12-12T02:49:13Z 2020-11-15 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.pss.2020.105083 Planetary and Space Science, v. 193. 0032-0633 http://hdl.handle.net/11449/202076 10.1016/j.pss.2020.105083 2-s2.0-85090414010 |
url |
http://dx.doi.org/10.1016/j.pss.2020.105083 http://hdl.handle.net/11449/202076 |
identifier_str_mv |
Planetary and Space Science, v. 193. 0032-0633 10.1016/j.pss.2020.105083 2-s2.0-85090414010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Planetary and Space Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1803650327759552512 |