Numerical modelling of tertiary tides

Detalhes bibliográficos
Autor(a) principal: Gao, Yan
Data de Publicação: 2018
Outros Autores: Correia, Alexandre C. M., Eggleton, Peter P., Han, Zhanwen
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/25025
Resumo: Stellar systems consisting of multiple stars tend to undergo tidal interactions when the separations between the stars are short. While tidal phenomena have been extensively studied, a certain tidal effect exclusive to hierarchical triples (triples in which one component star has a much wider orbit than the others) has hardly received any attention, mainly due to its complexity and consequent resistance to being modelled. This tidal effect is the tidal perturbation of the tertiary by the inner binary, which in turn depletes orbital energy from the inner binary, causing the inner binary separation to shrink. In this paper, we develop a fully numerical simulation of these "tertiary tides" by modifying established tidal models. We also provide general insight as to how close a hierarchical triple needs to be in order for such an effect to take place, and demonstrate that our simulations can effectively retrieve the orbital evolution for such systems. We conclude that tertiary tides are a significant factor in the evolution of close hierarchical triples, and strongly influence at least ~ 1% of all multiple star systems.
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spelling Numerical modelling of tertiary tides(stars:) binaries (including multiple): closeCelestial mechanicsStars: evolutionStellar systems consisting of multiple stars tend to undergo tidal interactions when the separations between the stars are short. While tidal phenomena have been extensively studied, a certain tidal effect exclusive to hierarchical triples (triples in which one component star has a much wider orbit than the others) has hardly received any attention, mainly due to its complexity and consequent resistance to being modelled. This tidal effect is the tidal perturbation of the tertiary by the inner binary, which in turn depletes orbital energy from the inner binary, causing the inner binary separation to shrink. In this paper, we develop a fully numerical simulation of these "tertiary tides" by modifying established tidal models. We also provide general insight as to how close a hierarchical triple needs to be in order for such an effect to take place, and demonstrate that our simulations can effectively retrieve the orbital evolution for such systems. We conclude that tertiary tides are a significant factor in the evolution of close hierarchical triples, and strongly influence at least ~ 1% of all multiple star systems.Oxford University Press2019-01-09T16:39:18Z2018-06-11T00:00:00Z2018-06-11info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/25025eng0035-871110.1093/mnras/sty1558Gao, YanCorreia, Alexandre C. M.Eggleton, Peter P.Han, Zhanweninfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:48:29Zoai:ria.ua.pt:10773/25025Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:58:21.030746Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Numerical modelling of tertiary tides
title Numerical modelling of tertiary tides
spellingShingle Numerical modelling of tertiary tides
Gao, Yan
(stars:) binaries (including multiple): close
Celestial mechanics
Stars: evolution
title_short Numerical modelling of tertiary tides
title_full Numerical modelling of tertiary tides
title_fullStr Numerical modelling of tertiary tides
title_full_unstemmed Numerical modelling of tertiary tides
title_sort Numerical modelling of tertiary tides
author Gao, Yan
author_facet Gao, Yan
Correia, Alexandre C. M.
Eggleton, Peter P.
Han, Zhanwen
author_role author
author2 Correia, Alexandre C. M.
Eggleton, Peter P.
Han, Zhanwen
author2_role author
author
author
dc.contributor.author.fl_str_mv Gao, Yan
Correia, Alexandre C. M.
Eggleton, Peter P.
Han, Zhanwen
dc.subject.por.fl_str_mv (stars:) binaries (including multiple): close
Celestial mechanics
Stars: evolution
topic (stars:) binaries (including multiple): close
Celestial mechanics
Stars: evolution
description Stellar systems consisting of multiple stars tend to undergo tidal interactions when the separations between the stars are short. While tidal phenomena have been extensively studied, a certain tidal effect exclusive to hierarchical triples (triples in which one component star has a much wider orbit than the others) has hardly received any attention, mainly due to its complexity and consequent resistance to being modelled. This tidal effect is the tidal perturbation of the tertiary by the inner binary, which in turn depletes orbital energy from the inner binary, causing the inner binary separation to shrink. In this paper, we develop a fully numerical simulation of these "tertiary tides" by modifying established tidal models. We also provide general insight as to how close a hierarchical triple needs to be in order for such an effect to take place, and demonstrate that our simulations can effectively retrieve the orbital evolution for such systems. We conclude that tertiary tides are a significant factor in the evolution of close hierarchical triples, and strongly influence at least ~ 1% of all multiple star systems.
publishDate 2018
dc.date.none.fl_str_mv 2018-06-11T00:00:00Z
2018-06-11
2019-01-09T16:39:18Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10773/25025
url http://hdl.handle.net/10773/25025
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0035-8711
10.1093/mnras/sty1558
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dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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