Proca stars: Gravitating Bose-Einstein condensates of massive spin 1 particles
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/16893 |
Resumo: | We establish that massive complex Abelian vector fields (mass mu) can form gravitating solitons, when minimally coupled to Einstein's gravity. Such Proca stars(PSs) have a stationary, everywhere regular and asymptotically flat geometry. The Proca field, however, possesses a harmonic time dependence (frequency w), realizing Wheeler's concept of geons for an Abelian spin 1 field. We obtain PSs with both a spherically symmetric (static) and an axially symmetric (stationary) line element. The latter form a countable number of families labelled by an integer m epsilon Z(+). PSs, like (scalar) boson stars, carry a conserved Noether charge, and are akin to the latter in many ways. In particular, both types of stars exist for a limited range of frequencies and there is a maximal ADM mass, M-max, attained for an intermediate frequency. For spherically symmetric PSs (rotating PSs with m = 1, 2, 3), M-max similar or equal to 1.058M(PI)(2)/mu (M-max similar or equal to 1.568, 2.337, 3.247 M-PI(2)/mu), slightly larger values than those for (mini-)boson stars. We establish perturbative stability for a subset of solutions in the spherical case and anticipate a similar conclusion for fundamental modes in the rotating case. The discovery of PSs opens many avenues of research, reconsidering five decades of work on (scalar) boson stars, in particular as possible dark matter candidates. (C) 2015 The Authors. Published by Elsevier B.V. |
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Proca stars: Gravitating Bose-Einstein condensates of massive spin 1 particlesWe establish that massive complex Abelian vector fields (mass mu) can form gravitating solitons, when minimally coupled to Einstein's gravity. Such Proca stars(PSs) have a stationary, everywhere regular and asymptotically flat geometry. The Proca field, however, possesses a harmonic time dependence (frequency w), realizing Wheeler's concept of geons for an Abelian spin 1 field. We obtain PSs with both a spherically symmetric (static) and an axially symmetric (stationary) line element. The latter form a countable number of families labelled by an integer m epsilon Z(+). PSs, like (scalar) boson stars, carry a conserved Noether charge, and are akin to the latter in many ways. In particular, both types of stars exist for a limited range of frequencies and there is a maximal ADM mass, M-max, attained for an intermediate frequency. For spherically symmetric PSs (rotating PSs with m = 1, 2, 3), M-max similar or equal to 1.058M(PI)(2)/mu (M-max similar or equal to 1.568, 2.337, 3.247 M-PI(2)/mu), slightly larger values than those for (mini-)boson stars. We establish perturbative stability for a subset of solutions in the spherical case and anticipate a similar conclusion for fundamental modes in the rotating case. The discovery of PSs opens many avenues of research, reconsidering five decades of work on (scalar) boson stars, in particular as possible dark matter candidates. (C) 2015 The Authors. Published by Elsevier B.V.Elsevier2017-02-27T12:05:11Z2016-01-01T00:00:00Z2016-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/16893eng0370-269310.1016/j.physletb.2015.11.051Brito, RichardCardoso, VitorHerdeiro, Carlos A.R.Radu, Eugeninfo: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:RCAAP2024-02-22T11:31:05Zoai:ria.ua.pt:10773/16893Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:51:44.000124Repositório 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 |
Proca stars: Gravitating Bose-Einstein condensates of massive spin 1 particles |
title |
Proca stars: Gravitating Bose-Einstein condensates of massive spin 1 particles |
spellingShingle |
Proca stars: Gravitating Bose-Einstein condensates of massive spin 1 particles Brito, Richard |
title_short |
Proca stars: Gravitating Bose-Einstein condensates of massive spin 1 particles |
title_full |
Proca stars: Gravitating Bose-Einstein condensates of massive spin 1 particles |
title_fullStr |
Proca stars: Gravitating Bose-Einstein condensates of massive spin 1 particles |
title_full_unstemmed |
Proca stars: Gravitating Bose-Einstein condensates of massive spin 1 particles |
title_sort |
Proca stars: Gravitating Bose-Einstein condensates of massive spin 1 particles |
author |
Brito, Richard |
author_facet |
Brito, Richard Cardoso, Vitor Herdeiro, Carlos A.R. Radu, Eugen |
author_role |
author |
author2 |
Cardoso, Vitor Herdeiro, Carlos A.R. Radu, Eugen |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Brito, Richard Cardoso, Vitor Herdeiro, Carlos A.R. Radu, Eugen |
description |
We establish that massive complex Abelian vector fields (mass mu) can form gravitating solitons, when minimally coupled to Einstein's gravity. Such Proca stars(PSs) have a stationary, everywhere regular and asymptotically flat geometry. The Proca field, however, possesses a harmonic time dependence (frequency w), realizing Wheeler's concept of geons for an Abelian spin 1 field. We obtain PSs with both a spherically symmetric (static) and an axially symmetric (stationary) line element. The latter form a countable number of families labelled by an integer m epsilon Z(+). PSs, like (scalar) boson stars, carry a conserved Noether charge, and are akin to the latter in many ways. In particular, both types of stars exist for a limited range of frequencies and there is a maximal ADM mass, M-max, attained for an intermediate frequency. For spherically symmetric PSs (rotating PSs with m = 1, 2, 3), M-max similar or equal to 1.058M(PI)(2)/mu (M-max similar or equal to 1.568, 2.337, 3.247 M-PI(2)/mu), slightly larger values than those for (mini-)boson stars. We establish perturbative stability for a subset of solutions in the spherical case and anticipate a similar conclusion for fundamental modes in the rotating case. The discovery of PSs opens many avenues of research, reconsidering five decades of work on (scalar) boson stars, in particular as possible dark matter candidates. (C) 2015 The Authors. Published by Elsevier B.V. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-01T00:00:00Z 2016-01 2017-02-27T12:05:11Z |
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://hdl.handle.net/10773/16893 |
url |
http://hdl.handle.net/10773/16893 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0370-2693 10.1016/j.physletb.2015.11.051 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799137566810701824 |