Nonminimally coupled dark matter in clusters of galaxies: a fully comprehensive analysis

[EN] In this study, we explore how a non-minimal coupling between dark matter and gravity can affect the behavior of dark matter in galaxy clusters. We have considered the case of a disformal coupling, which leads to a modification of the Poisson equation. Building on an earlier work, we expand the...

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Detalles Bibliográficos
Autores: Zamani, Saboura, Salzano, Vincenzo, Bettoni, Dario (1983-)
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universidad de León
Repositorio:BULERIA. Repositorio Institucional de la Universidad de León
OAI Identifier:oai:buleria.unileon.es:10612/25061
Acceso en línea:https://link.springer.com/article/10.1140/epjc/s10052-025-13956-x
https://hdl.handle.net/10612/25061
Access Level:acceso abierto
Palabra clave:Astrofísica
Física
Matemáticas
Materia Oscura
Lente gravitacinoal
gravedad Modificada
21 Astronomía y Astrofísica
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spelling Nonminimally coupled dark matter in clusters of galaxies: a fully comprehensive analysisZamani, SabouraSalzano, VincenzoBettoni, Dario (1983-)AstrofísicaFísicaMatemáticasMateria OscuraLente gravitacinoalgravedad Modificada21 Astronomía y Astrofísica[EN] In this study, we explore how a non-minimal coupling between dark matter and gravity can affect the behavior of dark matter in galaxy clusters. We have considered the case of a disformal coupling, which leads to a modification of the Poisson equation. Building on an earlier work, we expand the analysis considering all possible disformal coupling scenarios and employing various dark matter density profiles. In doing so, we aim to constrain the key parameter in our model, the characteristic coupling length. To achieve this, we analyze data from a combination of strong and weak lensing using three statistical approaches: a single cluster fitting procedure, a joint analysis, and one with stacked profiles. Our findings show that the coupling length is typically very small, thus being fully consistent with general relativity, although with an upper limit at which is of the order of 100 kpc.SIThe research of S.Z. and V.S. is funded by the Polish National Science Centre grant No. DEC-2021/43/O/ST9/00664. D.B. acknowledges support from projects PID2021-122938NB-I00 funded by the Spanish “Ministerio de Ciencia e Innovación” and FEDER “A way of making Europe”, PID2022-139841NB-I00 funded by the Spanish “Ministerio de Ciencia e Innovación” and SA097P24 funded by Junta de Castilla y León.Springer NatureDidactica de la MatematicaEscuela de Ingenierias Industrial, Informática y Aeroespacial2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://link.springer.com/article/10.1140/epjc/s10052-025-13956-xhttps://hdl.handle.net/10612/25061reponame:BULERIA. Repositorio Institucional de la Universidad de Leóninstname:Universidad de LeónInglés"info:eu-repo/grantAgreement/AEI/ Programa Estatal para Impulsar la Investigación Científico-Técnica y su Transferencia / PID2021-122938NB-I00/ES/ LA ERA MULTI-SONDA PARA GRAVITACION Y COSMOLOGIA"info:eu-repo/grantAgreement/AEI/ Programa Estatal para Impulsar la Investigación Científico-Técnica y su Transferencia / PID2022-139841NB-I00http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:buleria.unileon.es:10612/250612026-06-24T12:43:27Z
dc.title.none.fl_str_mv Nonminimally coupled dark matter in clusters of galaxies: a fully comprehensive analysis
title Nonminimally coupled dark matter in clusters of galaxies: a fully comprehensive analysis
spellingShingle Nonminimally coupled dark matter in clusters of galaxies: a fully comprehensive analysis
Zamani, Saboura
Astrofísica
Física
Matemáticas
Materia Oscura
Lente gravitacinoal
gravedad Modificada
21 Astronomía y Astrofísica
title_short Nonminimally coupled dark matter in clusters of galaxies: a fully comprehensive analysis
title_full Nonminimally coupled dark matter in clusters of galaxies: a fully comprehensive analysis
title_fullStr Nonminimally coupled dark matter in clusters of galaxies: a fully comprehensive analysis
title_full_unstemmed Nonminimally coupled dark matter in clusters of galaxies: a fully comprehensive analysis
title_sort Nonminimally coupled dark matter in clusters of galaxies: a fully comprehensive analysis
dc.creator.none.fl_str_mv Zamani, Saboura
Salzano, Vincenzo
Bettoni, Dario (1983-)
author Zamani, Saboura
author_facet Zamani, Saboura
Salzano, Vincenzo
Bettoni, Dario (1983-)
author_role author
author2 Salzano, Vincenzo
Bettoni, Dario (1983-)
author2_role author
author
dc.contributor.none.fl_str_mv Didactica de la Matematica
Escuela de Ingenierias Industrial, Informática y Aeroespacial
dc.subject.none.fl_str_mv Astrofísica
Física
Matemáticas
Materia Oscura
Lente gravitacinoal
gravedad Modificada
21 Astronomía y Astrofísica
topic Astrofísica
Física
Matemáticas
Materia Oscura
Lente gravitacinoal
gravedad Modificada
21 Astronomía y Astrofísica
description [EN] In this study, we explore how a non-minimal coupling between dark matter and gravity can affect the behavior of dark matter in galaxy clusters. We have considered the case of a disformal coupling, which leads to a modification of the Poisson equation. Building on an earlier work, we expand the analysis considering all possible disformal coupling scenarios and employing various dark matter density profiles. In doing so, we aim to constrain the key parameter in our model, the characteristic coupling length. To achieve this, we analyze data from a combination of strong and weak lensing using three statistical approaches: a single cluster fitting procedure, a joint analysis, and one with stacked profiles. Our findings show that the coupling length is typically very small, thus being fully consistent with general relativity, although with an upper limit at which is of the order of 100 kpc.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://link.springer.com/article/10.1140/epjc/s10052-025-13956-x
https://hdl.handle.net/10612/25061
url https://link.springer.com/article/10.1140/epjc/s10052-025-13956-x
https://hdl.handle.net/10612/25061
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv "info:eu-repo/grantAgreement/AEI/ Programa Estatal para Impulsar la Investigación Científico-Técnica y su Transferencia / PID2021-122938NB-I00/ES/ LA ERA MULTI-SONDA PARA GRAVITACION Y COSMOLOGIA"
info:eu-repo/grantAgreement/AEI/ Programa Estatal para Impulsar la Investigación Científico-Técnica y su Transferencia / PID2022-139841NB-I00
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:BULERIA. Repositorio Institucional de la Universidad de León
instname:Universidad de León
instname_str Universidad de León
reponame_str BULERIA. Repositorio Institucional de la Universidad de León
collection BULERIA. Repositorio Institucional de la Universidad de León
repository.name.fl_str_mv
repository.mail.fl_str_mv
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