On the cosmic distance duality relation and strong gravitational lens power law density profile
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
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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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 |
|
_version_ |
1808129451634982912 |