Determination of the kinematic parameters from SNe Ia and cosmic chronometers
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1140/epjc/s10052-022-10378-x http://hdl.handle.net/11449/241016 |
Resumo: | In this work, by assuming a spatially flat Universe, we have tested 8 kinematic parametrization models with H(z) data from Cosmic Chronometers and SNe Ia from Pantheon compilation. Our aim is obtain the current values for the Hubble constant (H), deceleration parameter (q), jerk (j) and snap (s) parameters independently from a dynamical model. By using a Bayesian model comparison, three models are favoured: a model with the deceleration parameter (q) linearly dependent on the redshift, q linearly dependent on the scale factor and a model with a constant jerk. The model with constant jerk is slightly favoured by this analysis, furnishing H0=68.8-3.6+3.7 km/s/Mpc, q= - 0.58 ± 0.13 , j0=1.15-0.53+0.56 and s0=-0.25-0.30+0.40. The other models are compatible with the constant jerk model, except for the snap parameter, where we have found s0=4.0-3.0+3.4 for the model with q linearly dependent on the scale factor. |
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Repositório Institucional da UNESP |
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spelling |
Determination of the kinematic parameters from SNe Ia and cosmic chronometersIn this work, by assuming a spatially flat Universe, we have tested 8 kinematic parametrization models with H(z) data from Cosmic Chronometers and SNe Ia from Pantheon compilation. Our aim is obtain the current values for the Hubble constant (H), deceleration parameter (q), jerk (j) and snap (s) parameters independently from a dynamical model. By using a Bayesian model comparison, three models are favoured: a model with the deceleration parameter (q) linearly dependent on the redshift, q linearly dependent on the scale factor and a model with a constant jerk. The model with constant jerk is slightly favoured by this analysis, furnishing H0=68.8-3.6+3.7 km/s/Mpc, q= - 0.58 ± 0.13 , j0=1.15-0.53+0.56 and s0=-0.25-0.30+0.40. The other models are compatible with the constant jerk model, except for the snap parameter, where we have found s0=4.0-3.0+3.4 for the model with q linearly dependent on the scale factor.Departamento de Física Faculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista (UNESP), Av. Dr. Ariberto Pereira da Cunha 333, SPInstituto de Ciências e Engenharia Universidade Estadual Paulista (UNESP), R. Geraldo Alckmin, 519, SPDepartamento de Física Faculdade de Engenharia de Guaratinguetá Universidade Estadual Paulista (UNESP), Av. Dr. Ariberto Pereira da Cunha 333, SPInstituto de Ciências e Engenharia Universidade Estadual Paulista (UNESP), R. Geraldo Alckmin, 519, SPUniversidade Estadual Paulista (UNESP)Benndorf, D. [UNESP]Jesus, J. F. [UNESP]Pereira, S. H. [UNESP]2023-03-01T20:43:16Z2023-03-01T20:43:16Z2022-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1140/epjc/s10052-022-10378-xEuropean Physical Journal C, v. 82, n. 5, 2022.1434-60521434-6044http://hdl.handle.net/11449/24101610.1140/epjc/s10052-022-10378-x2-s2.0-85130336025Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEuropean Physical Journal Cinfo:eu-repo/semantics/openAccess2024-07-01T20:52:08Zoai:repositorio.unesp.br:11449/241016Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:57:50.552024Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Determination of the kinematic parameters from SNe Ia and cosmic chronometers |
title |
Determination of the kinematic parameters from SNe Ia and cosmic chronometers |
spellingShingle |
Determination of the kinematic parameters from SNe Ia and cosmic chronometers Benndorf, D. [UNESP] |
title_short |
Determination of the kinematic parameters from SNe Ia and cosmic chronometers |
title_full |
Determination of the kinematic parameters from SNe Ia and cosmic chronometers |
title_fullStr |
Determination of the kinematic parameters from SNe Ia and cosmic chronometers |
title_full_unstemmed |
Determination of the kinematic parameters from SNe Ia and cosmic chronometers |
title_sort |
Determination of the kinematic parameters from SNe Ia and cosmic chronometers |
author |
Benndorf, D. [UNESP] |
author_facet |
Benndorf, D. [UNESP] Jesus, J. F. [UNESP] Pereira, S. H. [UNESP] |
author_role |
author |
author2 |
Jesus, J. F. [UNESP] Pereira, S. H. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Benndorf, D. [UNESP] Jesus, J. F. [UNESP] Pereira, S. H. [UNESP] |
description |
In this work, by assuming a spatially flat Universe, we have tested 8 kinematic parametrization models with H(z) data from Cosmic Chronometers and SNe Ia from Pantheon compilation. Our aim is obtain the current values for the Hubble constant (H), deceleration parameter (q), jerk (j) and snap (s) parameters independently from a dynamical model. By using a Bayesian model comparison, three models are favoured: a model with the deceleration parameter (q) linearly dependent on the redshift, q linearly dependent on the scale factor and a model with a constant jerk. The model with constant jerk is slightly favoured by this analysis, furnishing H0=68.8-3.6+3.7 km/s/Mpc, q= - 0.58 ± 0.13 , j0=1.15-0.53+0.56 and s0=-0.25-0.30+0.40. The other models are compatible with the constant jerk model, except for the snap parameter, where we have found s0=4.0-3.0+3.4 for the model with q linearly dependent on the scale factor. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-05-01 2023-03-01T20:43:16Z 2023-03-01T20:43:16Z |
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/s10052-022-10378-x European Physical Journal C, v. 82, n. 5, 2022. 1434-6052 1434-6044 http://hdl.handle.net/11449/241016 10.1140/epjc/s10052-022-10378-x 2-s2.0-85130336025 |
url |
http://dx.doi.org/10.1140/epjc/s10052-022-10378-x http://hdl.handle.net/11449/241016 |
identifier_str_mv |
European Physical Journal C, v. 82, n. 5, 2022. 1434-6052 1434-6044 10.1140/epjc/s10052-022-10378-x 2-s2.0-85130336025 |
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_ |
1808128224551501824 |