Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation function

Autores
Correa, Carlos Mauricio; Paz, Dante Javier; Padilla, Nelson David; Sanchez, Ariel Guillermo; Ruiz, Andrés Nicolás; Angulo, Raúl E.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This is the second part of a thorough investigation of the redshift-space effects that affect void properties and the impact they have on cosmological tests.Here, we focus on the void-galaxy cross-correlation function, specifically, on the projected versions that we developed in a previous work.The pillar of the analysis is the one-to-one relationship between real and redshift-space voids above the shot-noise level identified with a spherical void finder.Under this mapping, void properties are affected by three effects: (i) a systematic expansion as a consequence of the distortions induced by galaxy dynamics, (ii) the Alcock-Paczynski volume effect, which manifests as an overall expansion or contraction depending on the fiducial cosmology, and (iii) a systematic off-centring along the line of sight as a consequence of the distortions induced by void dynamics.We found that correlations are also affected by an additional source of distortions: the ellipticity of voids.This is the first time that distortions due to the off-centring and ellipticity effects are detected and quantified.With a simplified test, we verified that the Gaussian streaming model is still robust provided all these effects are taken into account, laying the foundations for improvements in current models in order to obtain unbiased cosmological constraints from spectroscopic surveys.Besides this practical importance, this analysis also encodes key information about the structure and dynamics of the Universe at the largest scales.Furthermore, some of the effects constitute cosmological probes by themselves, as is the case of the void ellipticity.
Fil: Correa, Carlos Mauricio. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Paz, Dante Javier. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Padilla, Nelson David. Pontificia Universidad Católica de Chile; Chile. 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
Fil: Sanchez, Ariel Guillermo. 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. Pontificia Universidad Católica de Chile; Chile. Institut Max Planck Fuer Gesellschaft. Max Planck Institute For Extraterrestrial Physics.; Alemania
Fil: Ruiz, Andrés Nicolás. 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
Fil: Angulo, Raúl E.. Donostia International Physics Centre; España. Basque Foundation for Science; España
Materia
LARGE-SCALE STRUCTURE OF UNIVERSE
DARK ENERGY
DISTANCE SCALE
COSMOLOGICAL PARAMETERS
GLAXIES:DISTANCES AND REDSHIFTS
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:11336/202728
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation functionCorrea, Carlos MauricioPaz, Dante JavierPadilla, Nelson DavidSanchez, Ariel GuillermoRuiz, Andrés NicolásAngulo, Raúl E.LARGE-SCALE STRUCTURE OF UNIVERSEDARK ENERGYDISTANCE SCALECOSMOLOGICAL PARAMETERSGLAXIES:DISTANCES AND REDSHIFTShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1This is the second part of a thorough investigation of the redshift-space effects that affect void properties and the impact they have on cosmological tests.Here, we focus on the void-galaxy cross-correlation function, specifically, on the projected versions that we developed in a previous work.The pillar of the analysis is the one-to-one relationship between real and redshift-space voids above the shot-noise level identified with a spherical void finder.Under this mapping, void properties are affected by three effects: (i) a systematic expansion as a consequence of the distortions induced by galaxy dynamics, (ii) the Alcock-Paczynski volume effect, which manifests as an overall expansion or contraction depending on the fiducial cosmology, and (iii) a systematic off-centring along the line of sight as a consequence of the distortions induced by void dynamics.We found that correlations are also affected by an additional source of distortions: the ellipticity of voids.This is the first time that distortions due to the off-centring and ellipticity effects are detected and quantified.With a simplified test, we verified that the Gaussian streaming model is still robust provided all these effects are taken into account, laying the foundations for improvements in current models in order to obtain unbiased cosmological constraints from spectroscopic surveys.Besides this practical importance, this analysis also encodes key information about the structure and dynamics of the Universe at the largest scales.Furthermore, some of the effects constitute cosmological probes by themselves, as is the case of the void ellipticity.Fil: Correa, Carlos Mauricio. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Paz, Dante Javier. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Padilla, Nelson David. Pontificia Universidad Católica de Chile; Chile. 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; ArgentinaFil: Sanchez, Ariel Guillermo. 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. Pontificia Universidad Católica de Chile; Chile. Institut Max Planck Fuer Gesellschaft. Max Planck Institute For Extraterrestrial Physics.; AlemaniaFil: Ruiz, Andrés Nicolás. 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; ArgentinaFil: Angulo, Raúl E.. Donostia International Physics Centre; España. Basque Foundation for Science; EspañaWiley Blackwell Publishing, Inc2022-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/202728Correa, Carlos Mauricio; Paz, Dante Javier; Padilla, Nelson David; Sanchez, Ariel Guillermo; Ruiz, Andrés Nicolás; et al.; Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation function; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 509; 2; 1-2022; 1871-18840035-87111365-2966CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/509/2/1871/6409144info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/2107.01314info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab3070info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:05:51Zoai:ri.conicet.gov.ar:11336/202728instacron: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:34982025-09-29 10:05:51.905CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation function
title Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation function
spellingShingle Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation function
Correa, Carlos Mauricio
LARGE-SCALE STRUCTURE OF UNIVERSE
DARK ENERGY
DISTANCE SCALE
COSMOLOGICAL PARAMETERS
GLAXIES:DISTANCES AND REDSHIFTS
title_short Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation function
title_full Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation function
title_fullStr Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation function
title_full_unstemmed Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation function
title_sort Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation function
dc.creator.none.fl_str_mv Correa, Carlos Mauricio
Paz, Dante Javier
Padilla, Nelson David
Sanchez, Ariel Guillermo
Ruiz, Andrés Nicolás
Angulo, Raúl E.
author Correa, Carlos Mauricio
author_facet Correa, Carlos Mauricio
Paz, Dante Javier
Padilla, Nelson David
Sanchez, Ariel Guillermo
Ruiz, Andrés Nicolás
Angulo, Raúl E.
author_role author
author2 Paz, Dante Javier
Padilla, Nelson David
Sanchez, Ariel Guillermo
Ruiz, Andrés Nicolás
Angulo, Raúl E.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv LARGE-SCALE STRUCTURE OF UNIVERSE
DARK ENERGY
DISTANCE SCALE
COSMOLOGICAL PARAMETERS
GLAXIES:DISTANCES AND REDSHIFTS
topic LARGE-SCALE STRUCTURE OF UNIVERSE
DARK ENERGY
DISTANCE SCALE
COSMOLOGICAL PARAMETERS
GLAXIES:DISTANCES AND REDSHIFTS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This is the second part of a thorough investigation of the redshift-space effects that affect void properties and the impact they have on cosmological tests.Here, we focus on the void-galaxy cross-correlation function, specifically, on the projected versions that we developed in a previous work.The pillar of the analysis is the one-to-one relationship between real and redshift-space voids above the shot-noise level identified with a spherical void finder.Under this mapping, void properties are affected by three effects: (i) a systematic expansion as a consequence of the distortions induced by galaxy dynamics, (ii) the Alcock-Paczynski volume effect, which manifests as an overall expansion or contraction depending on the fiducial cosmology, and (iii) a systematic off-centring along the line of sight as a consequence of the distortions induced by void dynamics.We found that correlations are also affected by an additional source of distortions: the ellipticity of voids.This is the first time that distortions due to the off-centring and ellipticity effects are detected and quantified.With a simplified test, we verified that the Gaussian streaming model is still robust provided all these effects are taken into account, laying the foundations for improvements in current models in order to obtain unbiased cosmological constraints from spectroscopic surveys.Besides this practical importance, this analysis also encodes key information about the structure and dynamics of the Universe at the largest scales.Furthermore, some of the effects constitute cosmological probes by themselves, as is the case of the void ellipticity.
Fil: Correa, Carlos Mauricio. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Paz, Dante Javier. 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Padilla, Nelson David. Pontificia Universidad Católica de Chile; Chile. 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
Fil: Sanchez, Ariel Guillermo. 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. Pontificia Universidad Católica de Chile; Chile. Institut Max Planck Fuer Gesellschaft. Max Planck Institute For Extraterrestrial Physics.; Alemania
Fil: Ruiz, Andrés Nicolás. 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
Fil: Angulo, Raúl E.. Donostia International Physics Centre; España. Basque Foundation for Science; España
description This is the second part of a thorough investigation of the redshift-space effects that affect void properties and the impact they have on cosmological tests.Here, we focus on the void-galaxy cross-correlation function, specifically, on the projected versions that we developed in a previous work.The pillar of the analysis is the one-to-one relationship between real and redshift-space voids above the shot-noise level identified with a spherical void finder.Under this mapping, void properties are affected by three effects: (i) a systematic expansion as a consequence of the distortions induced by galaxy dynamics, (ii) the Alcock-Paczynski volume effect, which manifests as an overall expansion or contraction depending on the fiducial cosmology, and (iii) a systematic off-centring along the line of sight as a consequence of the distortions induced by void dynamics.We found that correlations are also affected by an additional source of distortions: the ellipticity of voids.This is the first time that distortions due to the off-centring and ellipticity effects are detected and quantified.With a simplified test, we verified that the Gaussian streaming model is still robust provided all these effects are taken into account, laying the foundations for improvements in current models in order to obtain unbiased cosmological constraints from spectroscopic surveys.Besides this practical importance, this analysis also encodes key information about the structure and dynamics of the Universe at the largest scales.Furthermore, some of the effects constitute cosmological probes by themselves, as is the case of the void ellipticity.
publishDate 2022
dc.date.none.fl_str_mv 2022-01
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/11336/202728
Correa, Carlos Mauricio; Paz, Dante Javier; Padilla, Nelson David; Sanchez, Ariel Guillermo; Ruiz, Andrés Nicolás; et al.; Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation function; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 509; 2; 1-2022; 1871-1884
0035-8711
1365-2966
CONICET Digital
CONICET
url http://hdl.handle.net/11336/202728
identifier_str_mv Correa, Carlos Mauricio; Paz, Dante Javier; Padilla, Nelson David; Sanchez, Ariel Guillermo; Ruiz, Andrés Nicolás; et al.; Redshift-space effects in voids and their impact on cosmological tests – II. The void-galaxy cross-correlation function; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 509; 2; 1-2022; 1871-1884
0035-8711
1365-2966
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/509/2/1871/6409144
info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/2107.01314
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab3070
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
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 13.069144

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