A new test of gravity – I: Introduction to the method

Autores
Armijo, Joaquin; Baugh, Carlton M.; Norberg, Peder; Padilla, Nelson David
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We introduce a new scheme based on the marked correlation function to probe gravity using the large-scale structure of the Universe. We illustrate our approach by applying it to simulations of the metric-variation f(R) modified gravity theory and general relativity (GR). The modifications to the equations in f(R) gravity lead to changes in the environment of large-scale structures that could, in principle, be used to distinguish this model from GR. Applying the Monte Carlo Markov Chain algorithm, we use the observed number density and two-point clustering to fix the halo occupation distribution (HOD) model parameters and build mock galaxy catalogues from both simulations. To generate a mark for galaxies when computing the marked correlation function we estimate the local density using a Voronoi tessellation. Our approach allows us to isolate the contribution to the uncertainty in the predicted marked correlation function that arises from the range of viable HOD model parameters, in addition to the sample variance error for a single set of HOD parameters. This is critical for assessing the discriminatory power of the method. In a companion paper, we apply our new scheme to a current large-scale structure survey.
Fil: Armijo, Joaquin. University of Durham; Reino Unido. The University of Tokyo; Japón
Fil: Baugh, Carlton M.. University of Durham; Reino Unido
Fil: Norberg, Peder. University of Durham; Reino Unido
Fil: Padilla, Nelson David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Materia
Cosmology
Astrophysics
Modified gravity
Large-scale structure of the universe
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/282059
Acceder
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network_name_str CONICET Digital (CONICET)
spelling A new test of gravity – I: Introduction to the methodArmijo, JoaquinBaugh, Carlton M.Norberg, PederPadilla, Nelson DavidCosmologyAstrophysicsModified gravityLarge-scale structure of the universehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We introduce a new scheme based on the marked correlation function to probe gravity using the large-scale structure of the Universe. We illustrate our approach by applying it to simulations of the metric-variation f(R) modified gravity theory and general relativity (GR). The modifications to the equations in f(R) gravity lead to changes in the environment of large-scale structures that could, in principle, be used to distinguish this model from GR. Applying the Monte Carlo Markov Chain algorithm, we use the observed number density and two-point clustering to fix the halo occupation distribution (HOD) model parameters and build mock galaxy catalogues from both simulations. To generate a mark for galaxies when computing the marked correlation function we estimate the local density using a Voronoi tessellation. Our approach allows us to isolate the contribution to the uncertainty in the predicted marked correlation function that arises from the range of viable HOD model parameters, in addition to the sample variance error for a single set of HOD parameters. This is critical for assessing the discriminatory power of the method. In a companion paper, we apply our new scheme to a current large-scale structure survey.Fil: Armijo, Joaquin. University of Durham; Reino Unido. The University of Tokyo; JapónFil: Baugh, Carlton M.. University of Durham; Reino UnidoFil: Norberg, Peder. University of Durham; Reino UnidoFil: Padilla, Nelson David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaWiley Blackwell Publishing, Inc2024-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/282059Armijo, Joaquin; Baugh, Carlton M.; Norberg, Peder; Padilla, Nelson David; A new test of gravity – I: Introduction to the method; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 529; 3; 4-2024; 2866-28760035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/529/3/2866/7625605info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stae719info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-03-31T14:44:16Zoai:ri.conicet.gov.ar:11336/282059instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-03-31 14:44:17.039CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A new test of gravity – I: Introduction to the method
title A new test of gravity – I: Introduction to the method
spellingShingle A new test of gravity – I: Introduction to the method
Armijo, Joaquin
Cosmology
Astrophysics
Modified gravity
Large-scale structure of the universe
title_short A new test of gravity – I: Introduction to the method
title_full A new test of gravity – I: Introduction to the method
title_fullStr A new test of gravity – I: Introduction to the method
title_full_unstemmed A new test of gravity – I: Introduction to the method
title_sort A new test of gravity – I: Introduction to the method
dc.creator.none.fl_str_mv Armijo, Joaquin
Baugh, Carlton M.
Norberg, Peder
Padilla, Nelson David
author Armijo, Joaquin
author_facet Armijo, Joaquin
Baugh, Carlton M.
Norberg, Peder
Padilla, Nelson David
author_role author
author2 Baugh, Carlton M.
Norberg, Peder
Padilla, Nelson David
author2_role author
author
author
dc.subject.none.fl_str_mv Cosmology
Astrophysics
Modified gravity
Large-scale structure of the universe
topic Cosmology
Astrophysics
Modified gravity
Large-scale structure of the universe
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We introduce a new scheme based on the marked correlation function to probe gravity using the large-scale structure of the Universe. We illustrate our approach by applying it to simulations of the metric-variation f(R) modified gravity theory and general relativity (GR). The modifications to the equations in f(R) gravity lead to changes in the environment of large-scale structures that could, in principle, be used to distinguish this model from GR. Applying the Monte Carlo Markov Chain algorithm, we use the observed number density and two-point clustering to fix the halo occupation distribution (HOD) model parameters and build mock galaxy catalogues from both simulations. To generate a mark for galaxies when computing the marked correlation function we estimate the local density using a Voronoi tessellation. Our approach allows us to isolate the contribution to the uncertainty in the predicted marked correlation function that arises from the range of viable HOD model parameters, in addition to the sample variance error for a single set of HOD parameters. This is critical for assessing the discriminatory power of the method. In a companion paper, we apply our new scheme to a current large-scale structure survey.
Fil: Armijo, Joaquin. University of Durham; Reino Unido. The University of Tokyo; Japón
Fil: Baugh, Carlton M.. University of Durham; Reino Unido
Fil: Norberg, Peder. University of Durham; Reino Unido
Fil: Padilla, Nelson David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
description We introduce a new scheme based on the marked correlation function to probe gravity using the large-scale structure of the Universe. We illustrate our approach by applying it to simulations of the metric-variation f(R) modified gravity theory and general relativity (GR). The modifications to the equations in f(R) gravity lead to changes in the environment of large-scale structures that could, in principle, be used to distinguish this model from GR. Applying the Monte Carlo Markov Chain algorithm, we use the observed number density and two-point clustering to fix the halo occupation distribution (HOD) model parameters and build mock galaxy catalogues from both simulations. To generate a mark for galaxies when computing the marked correlation function we estimate the local density using a Voronoi tessellation. Our approach allows us to isolate the contribution to the uncertainty in the predicted marked correlation function that arises from the range of viable HOD model parameters, in addition to the sample variance error for a single set of HOD parameters. This is critical for assessing the discriminatory power of the method. In a companion paper, we apply our new scheme to a current large-scale structure survey.
publishDate 2024
dc.date.none.fl_str_mv 2024-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/282059
Armijo, Joaquin; Baugh, Carlton M.; Norberg, Peder; Padilla, Nelson David; A new test of gravity – I: Introduction to the method; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 529; 3; 4-2024; 2866-2876
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/282059
identifier_str_mv Armijo, Joaquin; Baugh, Carlton M.; Norberg, Peder; Padilla, Nelson David; A new test of gravity – I: Introduction to the method; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 529; 3; 4-2024; 2866-2876
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/529/3/2866/7625605
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stae719
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.822162

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