On the highly inclined vW leptokurtic asteroid families
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1093/mnras/stw2047 http://hdl.handle.net/11449/178704 |
Resumo: | vW leptokurtic asteroid families are families for which the distribution of the normal component of the terminal ejection velocity field vW is characterized by a positive value of the γ 2 Pearson kurtosis, i.e. they have a distribution with a more concentrated peak and larger tails than the Gaussian one. Currently, eight families are known to have γ 2(vW) > 0.25. Among these, three are highly inclined asteroid families, the Hansa, Barcelona, and Gallia families. As observed for the case of the Astrid family, the leptokurtic inclination distribution seems to be caused by the interaction of these families with node secular resonances. In particular, the Hansa and Gallia family are crossed by the s - sV resonance with Vesta, that significantly alters the inclination of some of their members. In this work we use the time evolution of γ 2(vW) for simulated families under the gravitational influence of all planets and the three most massive bodies in the main belt to assess the dynamical importance (or lack of) node secular resonances with Ceres, Vesta, and Pallas for the considered families, and to obtain independent constraints on the family ages. While secular resonances with massive bodies in the main belt do not significantly affect the dynamical evolution of the Barcelona family, they significantly increase the γ 2(vW) values of the simulated Hansa and Gallia families. Current values of the γ 2(vW) for the Gallia family are reached over the estimated family age only if secular resonances with Vesta are accounted for. |
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On the highly inclined vW leptokurtic asteroid familiesAsteroids: generalCelestial mechanicsMinor planetsvW leptokurtic asteroid families are families for which the distribution of the normal component of the terminal ejection velocity field vW is characterized by a positive value of the γ 2 Pearson kurtosis, i.e. they have a distribution with a more concentrated peak and larger tails than the Gaussian one. Currently, eight families are known to have γ 2(vW) > 0.25. Among these, three are highly inclined asteroid families, the Hansa, Barcelona, and Gallia families. As observed for the case of the Astrid family, the leptokurtic inclination distribution seems to be caused by the interaction of these families with node secular resonances. In particular, the Hansa and Gallia family are crossed by the s - sV resonance with Vesta, that significantly alters the inclination of some of their members. In this work we use the time evolution of γ 2(vW) for simulated families under the gravitational influence of all planets and the three most massive bodies in the main belt to assess the dynamical importance (or lack of) node secular resonances with Ceres, Vesta, and Pallas for the considered families, and to obtain independent constraints on the family ages. While secular resonances with massive bodies in the main belt do not significantly affect the dynamical evolution of the Barcelona family, they significantly increase the γ 2(vW) values of the simulated Hansa and Gallia families. Current values of the γ 2(vW) for the Gallia family are reached over the estimated family age only if secular resonances with Vesta are accounted for.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)National Aeronautics and Space AdministrationUNESP Univ. Estadual Paulista Grupo de dinâmica Orbital e PlanetologiaUNESP Univ. Estadual PaulistaUNESP Univ. Estadual Paulista Grupo de dinâmica Orbital e PlanetologiaUNESP Univ. Estadual PaulistaUniversidade Estadual Paulista (Unesp)Carruba, V. [UNESP]Domingos, R. C. [UNESP]Aljbaae, S. [UNESP]Huaman, M. [UNESP]2018-12-11T17:31:43Z2018-12-11T17:31:43Z2016-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article705-711application/pdfhttp://dx.doi.org/10.1093/mnras/stw2047Monthly Notices of the Royal Astronomical Society, v. 463, n. 1, p. 705-711, 2016.1365-29660035-8711http://hdl.handle.net/11449/17870410.1093/mnras/stw20472-s2.0-850148281152-s2.0-85014828115.pdf66521690834643270000-0002-0516-0420Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMonthly Notices of the Royal Astronomical Society2,3462,346info:eu-repo/semantics/openAccess2024-07-02T14:29:32Zoai:repositorio.unesp.br:11449/178704Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:49:05.746614Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
On the highly inclined vW leptokurtic asteroid families |
title |
On the highly inclined vW leptokurtic asteroid families |
spellingShingle |
On the highly inclined vW leptokurtic asteroid families Carruba, V. [UNESP] Asteroids: general Celestial mechanics Minor planets |
title_short |
On the highly inclined vW leptokurtic asteroid families |
title_full |
On the highly inclined vW leptokurtic asteroid families |
title_fullStr |
On the highly inclined vW leptokurtic asteroid families |
title_full_unstemmed |
On the highly inclined vW leptokurtic asteroid families |
title_sort |
On the highly inclined vW leptokurtic asteroid families |
author |
Carruba, V. [UNESP] |
author_facet |
Carruba, V. [UNESP] Domingos, R. C. [UNESP] Aljbaae, S. [UNESP] Huaman, M. [UNESP] |
author_role |
author |
author2 |
Domingos, R. C. [UNESP] Aljbaae, S. [UNESP] Huaman, M. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Carruba, V. [UNESP] Domingos, R. C. [UNESP] Aljbaae, S. [UNESP] Huaman, M. [UNESP] |
dc.subject.por.fl_str_mv |
Asteroids: general Celestial mechanics Minor planets |
topic |
Asteroids: general Celestial mechanics Minor planets |
description |
vW leptokurtic asteroid families are families for which the distribution of the normal component of the terminal ejection velocity field vW is characterized by a positive value of the γ 2 Pearson kurtosis, i.e. they have a distribution with a more concentrated peak and larger tails than the Gaussian one. Currently, eight families are known to have γ 2(vW) > 0.25. Among these, three are highly inclined asteroid families, the Hansa, Barcelona, and Gallia families. As observed for the case of the Astrid family, the leptokurtic inclination distribution seems to be caused by the interaction of these families with node secular resonances. In particular, the Hansa and Gallia family are crossed by the s - sV resonance with Vesta, that significantly alters the inclination of some of their members. In this work we use the time evolution of γ 2(vW) for simulated families under the gravitational influence of all planets and the three most massive bodies in the main belt to assess the dynamical importance (or lack of) node secular resonances with Ceres, Vesta, and Pallas for the considered families, and to obtain independent constraints on the family ages. While secular resonances with massive bodies in the main belt do not significantly affect the dynamical evolution of the Barcelona family, they significantly increase the γ 2(vW) values of the simulated Hansa and Gallia families. Current values of the γ 2(vW) for the Gallia family are reached over the estimated family age only if secular resonances with Vesta are accounted for. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-01 2018-12-11T17:31:43Z 2018-12-11T17:31:43Z |
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/10.1093/mnras/stw2047 Monthly Notices of the Royal Astronomical Society, v. 463, n. 1, p. 705-711, 2016. 1365-2966 0035-8711 http://hdl.handle.net/11449/178704 10.1093/mnras/stw2047 2-s2.0-85014828115 2-s2.0-85014828115.pdf 6652169083464327 0000-0002-0516-0420 |
url |
http://dx.doi.org/10.1093/mnras/stw2047 http://hdl.handle.net/11449/178704 |
identifier_str_mv |
Monthly Notices of the Royal Astronomical Society, v. 463, n. 1, p. 705-711, 2016. 1365-2966 0035-8711 10.1093/mnras/stw2047 2-s2.0-85014828115 2-s2.0-85014828115.pdf 6652169083464327 0000-0002-0516-0420 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Monthly Notices of the Royal Astronomical Society 2,346 2,346 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
705-711 application/pdf |
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 |
|
_version_ |
1808129555087491072 |