A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers

Detalhes bibliográficos
Autor(a) principal: Bora, Kamal
Data de Publicação: 2022
Outros Autores: Holanda, R. F.L., Desai, Shantanu, Pereira, S. H. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1140/epjc/s10052-022-09987-3
http://hdl.handle.net/11449/230213
Resumo: In this paper, we implement a test of the standard law for the dark matter density evolution as a function of redshift. For this purpose, only a flat universe and the validity of the FRW metric are assumed. A deformed dark matter density evolution law is considered, given by ρc(z) ∝ (1 + z) 3+ϵ, and constraints on ϵ are obtained by combining the galaxy cluster gas mass fractions with cosmic chronometers measurements. We find that ϵ= 0 within 2σ c.l., in full agreement with other recent analyses.
id UNSP_7d8d1eef6078480d45ce951e47269148
oai_identifier_str oai:repositorio.unesp.br:11449/230213
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometersIn this paper, we implement a test of the standard law for the dark matter density evolution as a function of redshift. For this purpose, only a flat universe and the validity of the FRW metric are assumed. A deformed dark matter density evolution law is considered, given by ρc(z) ∝ (1 + z) 3+ϵ, and constraints on ϵ are obtained by combining the galaxy cluster gas mass fractions with cosmic chronometers measurements. We find that ϵ= 0 within 2σ c.l., in full agreement with other recent analyses.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Department of Physics Indian Institute of Technology Hyderabad, TelanganaDepartamento de Física Universidade Federal do Rio Grande do Norte, Rio Grande do NorteDepartamento de Física Universidade Federal de Campina Grande, PBDepartamento de Física Universidade Federal de Sergipe, SEDepartamento de Física Faculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista (UNESP), SPDepartamento de Física Faculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista (UNESP), SPCNPq: 28755/2018-6HyderabadUniversidade Federal do Rio Grande do NorteUniversidade Federal de Campina GrandeUniversidade Federal de Sergipe (UFS)Universidade Estadual Paulista (UNESP)Bora, KamalHolanda, R. F.L.Desai, ShantanuPereira, S. H. [UNESP]2022-04-29T08:38:35Z2022-04-29T08:38:35Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1140/epjc/s10052-022-09987-3European Physical Journal C, v. 82, n. 1, 2022.1434-60521434-6044http://hdl.handle.net/11449/23021310.1140/epjc/s10052-022-09987-32-s2.0-85122766930Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEuropean Physical Journal Cinfo:eu-repo/semantics/openAccess2024-07-01T20:52:36Zoai:repositorio.unesp.br:11449/230213Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:55:09.268564Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers
title A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers
spellingShingle A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers
Bora, Kamal
title_short A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers
title_full A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers
title_fullStr A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers
title_full_unstemmed A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers
title_sort A test of the standard dark matter density evolution law using galaxy clusters and cosmic chronometers
author Bora, Kamal
author_facet Bora, Kamal
Holanda, R. F.L.
Desai, Shantanu
Pereira, S. H. [UNESP]
author_role author
author2 Holanda, R. F.L.
Desai, Shantanu
Pereira, S. H. [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Hyderabad
Universidade Federal do Rio Grande do Norte
Universidade Federal de Campina Grande
Universidade Federal de Sergipe (UFS)
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Bora, Kamal
Holanda, R. F.L.
Desai, Shantanu
Pereira, S. H. [UNESP]
description In this paper, we implement a test of the standard law for the dark matter density evolution as a function of redshift. For this purpose, only a flat universe and the validity of the FRW metric are assumed. A deformed dark matter density evolution law is considered, given by ρc(z) ∝ (1 + z) 3+ϵ, and constraints on ϵ are obtained by combining the galaxy cluster gas mass fractions with cosmic chronometers measurements. We find that ϵ= 0 within 2σ c.l., in full agreement with other recent analyses.
publishDate 2022
dc.date.none.fl_str_mv 2022-04-29T08:38:35Z
2022-04-29T08:38:35Z
2022-01-01
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/10.1140/epjc/s10052-022-09987-3
European Physical Journal C, v. 82, n. 1, 2022.
1434-6052
1434-6044
http://hdl.handle.net/11449/230213
10.1140/epjc/s10052-022-09987-3
2-s2.0-85122766930
url http://dx.doi.org/10.1140/epjc/s10052-022-09987-3
http://hdl.handle.net/11449/230213
identifier_str_mv European Physical Journal C, v. 82, n. 1, 2022.
1434-6052
1434-6044
10.1140/epjc/s10052-022-09987-3
2-s2.0-85122766930
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv European Physical Journal C
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
_version_ 1808129263449145344

Registros relacionados