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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/202728
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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 Técnicas2025-09-03T09:58:17Zoai: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:34982025-09-03 09:58:17.922CONICET 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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1842269513917136896 |
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13.13397 |