On the cosmic distance duality relation and strong gravitational lens power law density profile

Detalhes bibliográficos
Autor(a) principal: Lima, F. S.
Data de Publicação: 2021
Outros Autores: Holanda, R. F.L., Pereira, S. H. [UNESP], da Silva, W. J.C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1088/1475-7516/2021/08/035
http://hdl.handle.net/11449/229392
Resumo: Many new strong gravitational lensing (SGL) systems have been discovered in the last two decades with the advent of powerful new space and ground-based telescopes. The effect of the lens mass model (usually the power-law mass model) on cosmological parameters constraints has been performed recently in literature. In this paper, by using SGL systems and Supernovae type Ia observations, we explore if the power-law mass density profile (ρ ⋊ r-γ) is consistent with the cosmic distance duality relation (CDDR), DL(1 + z)-2/DA = η(z) = 1, by considering different lens mass intervals. It has been obtained that the verification of the CDDR validity is significantly dependent on lens mass interval considered: The sub-sample with σap ≥ 300 km/s (where σap is the lens apparent stellar velocity dispersion) is in full agreement with the CDDR validity, the sub-sample with intermediate σap values (200 ≤ σap < 300) km/s is marginally consistent with η = 1 and, finally, the sub-sample with low σap values (σap < 200 km/s) ruled out the CDDR validity with high statistical confidence. Therefore, if one takes the CDDR as guarantee, our results suggest that using a single density profile is not suitable to describe lens with low σap values and it is only an approximate description to lenses with intermediate mass interval.
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spelling On the cosmic distance duality relation and strong gravitational lens power law density profileGravitational lensingSupernova type Ia - standard candlesMany new strong gravitational lensing (SGL) systems have been discovered in the last two decades with the advent of powerful new space and ground-based telescopes. The effect of the lens mass model (usually the power-law mass model) on cosmological parameters constraints has been performed recently in literature. In this paper, by using SGL systems and Supernovae type Ia observations, we explore if the power-law mass density profile (ρ ⋊ r-γ) is consistent with the cosmic distance duality relation (CDDR), DL(1 + z)-2/DA = η(z) = 1, by considering different lens mass intervals. It has been obtained that the verification of the CDDR validity is significantly dependent on lens mass interval considered: The sub-sample with σap ≥ 300 km/s (where σap is the lens apparent stellar velocity dispersion) is in full agreement with the CDDR validity, the sub-sample with intermediate σap values (200 ≤ σap < 300) km/s is marginally consistent with η = 1 and, finally, the sub-sample with low σap values (σap < 200 km/s) ruled out the CDDR validity with high statistical confidence. Therefore, if one takes the CDDR as guarantee, our results suggest that using a single density profile is not suitable to describe lens with low σap values and it is only an approximate description to lenses with intermediate mass interval.Departamento de Física Universidade Federal do Rio Grande do NorteDepartamento de Física Universidade Federal de Campina GrandeDepartamento de Física Universidade Federal de SergipeDepartamento de Física Faculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista (UNESP)Departamento de Física Faculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista (UNESP)Universidade Federal do Rio Grande do NorteUniversidade Federal de Campina GrandeUniversidade Federal de Sergipe (UFS)Universidade Estadual Paulista (UNESP)Lima, F. S.Holanda, R. F.L.Pereira, S. H. [UNESP]da Silva, W. J.C.2022-04-29T08:32:14Z2022-04-29T08:32:14Z2021-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1088/1475-7516/2021/08/035Journal of Cosmology and Astroparticle Physics, v. 2021, n. 8, 2021.1475-7516http://hdl.handle.net/11449/22939210.1088/1475-7516/2021/08/0352-s2.0-85113348990Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Cosmology and Astroparticle Physicsinfo:eu-repo/semantics/openAccess2024-07-01T20:52:46Zoai:repositorio.unesp.br:11449/229392Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:41:39.721288Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv On the cosmic distance duality relation and strong gravitational lens power law density profile
title On the cosmic distance duality relation and strong gravitational lens power law density profile
spellingShingle On the cosmic distance duality relation and strong gravitational lens power law density profile
Lima, F. S.
Gravitational lensing
Supernova type Ia - standard candles
title_short On the cosmic distance duality relation and strong gravitational lens power law density profile
title_full On the cosmic distance duality relation and strong gravitational lens power law density profile
title_fullStr On the cosmic distance duality relation and strong gravitational lens power law density profile
title_full_unstemmed On the cosmic distance duality relation and strong gravitational lens power law density profile
title_sort On the cosmic distance duality relation and strong gravitational lens power law density profile
author Lima, F. S.
author_facet Lima, F. S.
Holanda, R. F.L.
Pereira, S. H. [UNESP]
da Silva, W. J.C.
author_role author
author2 Holanda, R. F.L.
Pereira, S. H. [UNESP]
da Silva, W. J.C.
author2_role author
author
author
dc.contributor.none.fl_str_mv 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 Lima, F. S.
Holanda, R. F.L.
Pereira, S. H. [UNESP]
da Silva, W. J.C.
dc.subject.por.fl_str_mv Gravitational lensing
Supernova type Ia - standard candles
topic Gravitational lensing
Supernova type Ia - standard candles
description Many new strong gravitational lensing (SGL) systems have been discovered in the last two decades with the advent of powerful new space and ground-based telescopes. The effect of the lens mass model (usually the power-law mass model) on cosmological parameters constraints has been performed recently in literature. In this paper, by using SGL systems and Supernovae type Ia observations, we explore if the power-law mass density profile (ρ ⋊ r-γ) is consistent with the cosmic distance duality relation (CDDR), DL(1 + z)-2/DA = η(z) = 1, by considering different lens mass intervals. It has been obtained that the verification of the CDDR validity is significantly dependent on lens mass interval considered: The sub-sample with σap ≥ 300 km/s (where σap is the lens apparent stellar velocity dispersion) is in full agreement with the CDDR validity, the sub-sample with intermediate σap values (200 ≤ σap < 300) km/s is marginally consistent with η = 1 and, finally, the sub-sample with low σap values (σap < 200 km/s) ruled out the CDDR validity with high statistical confidence. Therefore, if one takes the CDDR as guarantee, our results suggest that using a single density profile is not suitable to describe lens with low σap values and it is only an approximate description to lenses with intermediate mass interval.
publishDate 2021
dc.date.none.fl_str_mv 2021-08-01
2022-04-29T08:32:14Z
2022-04-29T08:32:14Z
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/10.1088/1475-7516/2021/08/035
Journal of Cosmology and Astroparticle Physics, v. 2021, n. 8, 2021.
1475-7516
http://hdl.handle.net/11449/229392
10.1088/1475-7516/2021/08/035
2-s2.0-85113348990
url http://dx.doi.org/10.1088/1475-7516/2021/08/035
http://hdl.handle.net/11449/229392
identifier_str_mv Journal of Cosmology and Astroparticle Physics, v. 2021, n. 8, 2021.
1475-7516
10.1088/1475-7516/2021/08/035
2-s2.0-85113348990
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Cosmology and Astroparticle Physics
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
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