A search for the variation of speed of light using galaxy cluster gas mass fraction measurements
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/10.1088/1475-7516/2021/11/034 http://hdl.handle.net/11449/230003 |
Resumo: | In this paper, we implement a new method to test the invariance of the speed of light (c) as a function of redshift, by combining the measurements of galaxy cluster gas mass fraction, H(z) from cosmic chronometers, and Type-Ia supernovae (SNe Ia). In our analyses, we consider both a constant depletion factor (which corresponds to the ratio by which the cluster gas mass fraction is depleted with respect to the universal baryonic mean) and one varying with redshift. We also consider the influence of different H 0 estimates on our results. We look for a variation of c, given by c(z) = c 0(1+c 1 z). We find a degeneracy between our final results on c variation and the assumptions on the gas mass fraction depletion factor. Most of our analyses indicate negligible variation of the speed of light. |
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Repositório Institucional da UNESP |
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A search for the variation of speed of light using galaxy cluster gas mass fraction measurementscosmology of theories beyond the SMgalaxy clusterssupernova type Ia-standard candlesIn this paper, we implement a new method to test the invariance of the speed of light (c) as a function of redshift, by combining the measurements of galaxy cluster gas mass fraction, H(z) from cosmic chronometers, and Type-Ia supernovae (SNe Ia). In our analyses, we consider both a constant depletion factor (which corresponds to the ratio by which the cluster gas mass fraction is depleted with respect to the universal baryonic mean) and one varying with redshift. We also consider the influence of different H 0 estimates on our results. We look for a variation of c, given by c(z) = c 0(1+c 1 z). We find a degeneracy between our final results on c variation and the assumptions on the gas mass fraction depletion factor. Most of our analyses indicate negligible variation of the speed of light.Departamento de Física Universidade Federal Do Rio Grande Do NorteDepartment of Physics Indian Institute of Technology Kandi, TelanganaDepartamento 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 NorteIndian Institute of Technology KandiUniversidade Federal de Campina GrandeUniversidade Federal de Sergipe (UFS)Universidade Estadual Paulista (UNESP)Mendonça, I. E.C.R.Bora, KamalHolanda, R. F.L.Desai, ShantanuPereira, S. H. [UNESP]2022-04-29T08:37:09Z2022-04-29T08:37:09Z2021-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1088/1475-7516/2021/11/034Journal of Cosmology and Astroparticle Physics, v. 2021, n. 11, 2021.1475-7516http://hdl.handle.net/11449/23000310.1088/1475-7516/2021/11/0342-s2.0-85120552453Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Cosmology and Astroparticle Physicsinfo:eu-repo/semantics/openAccess2024-07-01T20:52:55Zoai:repositorio.unesp.br:11449/230003Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:07:31.989228Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A search for the variation of speed of light using galaxy cluster gas mass fraction measurements |
title |
A search for the variation of speed of light using galaxy cluster gas mass fraction measurements |
spellingShingle |
A search for the variation of speed of light using galaxy cluster gas mass fraction measurements Mendonça, I. E.C.R. cosmology of theories beyond the SM galaxy clusters supernova type Ia-standard candles |
title_short |
A search for the variation of speed of light using galaxy cluster gas mass fraction measurements |
title_full |
A search for the variation of speed of light using galaxy cluster gas mass fraction measurements |
title_fullStr |
A search for the variation of speed of light using galaxy cluster gas mass fraction measurements |
title_full_unstemmed |
A search for the variation of speed of light using galaxy cluster gas mass fraction measurements |
title_sort |
A search for the variation of speed of light using galaxy cluster gas mass fraction measurements |
author |
Mendonça, I. E.C.R. |
author_facet |
Mendonça, I. E.C.R. Bora, Kamal Holanda, R. F.L. Desai, Shantanu Pereira, S. H. [UNESP] |
author_role |
author |
author2 |
Bora, Kamal Holanda, R. F.L. Desai, Shantanu Pereira, S. H. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal Do Rio Grande Do Norte Indian Institute of Technology Kandi Universidade Federal de Campina Grande Universidade Federal de Sergipe (UFS) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Mendonça, I. E.C.R. Bora, Kamal Holanda, R. F.L. Desai, Shantanu Pereira, S. H. [UNESP] |
dc.subject.por.fl_str_mv |
cosmology of theories beyond the SM galaxy clusters supernova type Ia-standard candles |
topic |
cosmology of theories beyond the SM galaxy clusters supernova type Ia-standard candles |
description |
In this paper, we implement a new method to test the invariance of the speed of light (c) as a function of redshift, by combining the measurements of galaxy cluster gas mass fraction, H(z) from cosmic chronometers, and Type-Ia supernovae (SNe Ia). In our analyses, we consider both a constant depletion factor (which corresponds to the ratio by which the cluster gas mass fraction is depleted with respect to the universal baryonic mean) and one varying with redshift. We also consider the influence of different H 0 estimates on our results. We look for a variation of c, given by c(z) = c 0(1+c 1 z). We find a degeneracy between our final results on c variation and the assumptions on the gas mass fraction depletion factor. Most of our analyses indicate negligible variation of the speed of light. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-11-01 2022-04-29T08:37:09Z 2022-04-29T08:37:09Z |
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/10.1088/1475-7516/2021/11/034 Journal of Cosmology and Astroparticle Physics, v. 2021, n. 11, 2021. 1475-7516 http://hdl.handle.net/11449/230003 10.1088/1475-7516/2021/11/034 2-s2.0-85120552453 |
url |
http://dx.doi.org/10.1088/1475-7516/2021/11/034 http://hdl.handle.net/11449/230003 |
identifier_str_mv |
Journal of Cosmology and Astroparticle Physics, v. 2021, n. 11, 2021. 1475-7516 10.1088/1475-7516/2021/11/034 2-s2.0-85120552453 |
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_ |
1808129586832080896 |