Anisotropic correlation functions as tracers of central galaxy alignments in simulations
- Autores
- Rodriguez, Facundo; Merchan, Manuel Enrique; Artale, Maria Celeste; Andrews, Moira
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Motivated by observational results, we use IllustrisTNG hydrodynamical numerical simulations to study the alignment of the central galaxies in groups with the surrounding structures. This approach allows us to analyse galaxy and group properties not available in observations. To perform this analysis, we use a modified version of the two-point cross-correlation function and a measure of the angle between the semimajor axes of the central galaxies and the larger structures. Overall, our results reproduce observational ones, as we find large-scale anisotropy, which is dominated by the red central galaxies. In addition, the latter is noticeably more aligned with their group than the blue ones. In contrast to the observations, we find a strong dependence of the anisotropy on the central galaxy with mass, probably associated with the inability of observational methods to determine them. This result allows us to link the alignment to the process of halo assembly and the well-known dependence of halo anisotropy on mass. When we include the dark matter distribution in our analysis, we conclude that the galaxy alignment found in simulations (and observations) can be explained by a combination of physical processes at different scales: the central galaxy aligns with the dark matter halo it inhabits, and this, in turn, aligns with the surrounding structures at large scales.
Fil: Rodriguez, Facundo. 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: Merchan, Manuel Enrique. 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: Artale, Maria Celeste. Universidad Andrés Bello; Chile. Università di Padova; Italia. Istituto Nazionale di Fisica Nucleare; Italia. Purdue University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Andrews, Moira. Purdue University; Estados Unidos. Universidad Nacional de Cordoba. Facultad de Ciencias de la Comunicación.; Argentina - Materia
-
DARK MATTER
GALAXIES: GROUPS: GENERAL
GALAXIES: HALOES
LARGE-SCALE STRUCTURE OF UNIVERSE
METHODS: STATISTICAL - 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:11336/226142
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spelling |
Anisotropic correlation functions as tracers of central galaxy alignments in simulationsRodriguez, FacundoMerchan, Manuel EnriqueArtale, Maria CelesteAndrews, MoiraDARK MATTERGALAXIES: GROUPS: GENERALGALAXIES: HALOESLARGE-SCALE STRUCTURE OF UNIVERSEMETHODS: STATISTICALhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Motivated by observational results, we use IllustrisTNG hydrodynamical numerical simulations to study the alignment of the central galaxies in groups with the surrounding structures. This approach allows us to analyse galaxy and group properties not available in observations. To perform this analysis, we use a modified version of the two-point cross-correlation function and a measure of the angle between the semimajor axes of the central galaxies and the larger structures. Overall, our results reproduce observational ones, as we find large-scale anisotropy, which is dominated by the red central galaxies. In addition, the latter is noticeably more aligned with their group than the blue ones. In contrast to the observations, we find a strong dependence of the anisotropy on the central galaxy with mass, probably associated with the inability of observational methods to determine them. This result allows us to link the alignment to the process of halo assembly and the well-known dependence of halo anisotropy on mass. When we include the dark matter distribution in our analysis, we conclude that the galaxy alignment found in simulations (and observations) can be explained by a combination of physical processes at different scales: the central galaxy aligns with the dark matter halo it inhabits, and this, in turn, aligns with the surrounding structures at large scales.Fil: Rodriguez, Facundo. 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: Merchan, Manuel Enrique. 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: Artale, Maria Celeste. Universidad Andrés Bello; Chile. Università di Padova; Italia. Istituto Nazionale di Fisica Nucleare; Italia. Purdue University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Andrews, Moira. Purdue University; Estados Unidos. Universidad Nacional de Cordoba. Facultad de Ciencias de la Comunicación.; ArgentinaWiley Blackwell Publishing, Inc2023-06info: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/11336/226142Rodriguez, Facundo; Merchan, Manuel Enrique; Artale, Maria Celeste; Andrews, Moira; Anisotropic correlation functions as tracers of central galaxy alignments in simulations; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 521; 4; 6-2023; 5483-54910035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/521/4/5483/7086119info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad924info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/2212.09781info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:54:28Zoai:ri.conicet.gov.ar:11336/226142instacron: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 09:54:28.822CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Anisotropic correlation functions as tracers of central galaxy alignments in simulations |
title |
Anisotropic correlation functions as tracers of central galaxy alignments in simulations |
spellingShingle |
Anisotropic correlation functions as tracers of central galaxy alignments in simulations Rodriguez, Facundo DARK MATTER GALAXIES: GROUPS: GENERAL GALAXIES: HALOES LARGE-SCALE STRUCTURE OF UNIVERSE METHODS: STATISTICAL |
title_short |
Anisotropic correlation functions as tracers of central galaxy alignments in simulations |
title_full |
Anisotropic correlation functions as tracers of central galaxy alignments in simulations |
title_fullStr |
Anisotropic correlation functions as tracers of central galaxy alignments in simulations |
title_full_unstemmed |
Anisotropic correlation functions as tracers of central galaxy alignments in simulations |
title_sort |
Anisotropic correlation functions as tracers of central galaxy alignments in simulations |
dc.creator.none.fl_str_mv |
Rodriguez, Facundo Merchan, Manuel Enrique Artale, Maria Celeste Andrews, Moira |
author |
Rodriguez, Facundo |
author_facet |
Rodriguez, Facundo Merchan, Manuel Enrique Artale, Maria Celeste Andrews, Moira |
author_role |
author |
author2 |
Merchan, Manuel Enrique Artale, Maria Celeste Andrews, Moira |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
DARK MATTER GALAXIES: GROUPS: GENERAL GALAXIES: HALOES LARGE-SCALE STRUCTURE OF UNIVERSE METHODS: STATISTICAL |
topic |
DARK MATTER GALAXIES: GROUPS: GENERAL GALAXIES: HALOES LARGE-SCALE STRUCTURE OF UNIVERSE METHODS: STATISTICAL |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Motivated by observational results, we use IllustrisTNG hydrodynamical numerical simulations to study the alignment of the central galaxies in groups with the surrounding structures. This approach allows us to analyse galaxy and group properties not available in observations. To perform this analysis, we use a modified version of the two-point cross-correlation function and a measure of the angle between the semimajor axes of the central galaxies and the larger structures. Overall, our results reproduce observational ones, as we find large-scale anisotropy, which is dominated by the red central galaxies. In addition, the latter is noticeably more aligned with their group than the blue ones. In contrast to the observations, we find a strong dependence of the anisotropy on the central galaxy with mass, probably associated with the inability of observational methods to determine them. This result allows us to link the alignment to the process of halo assembly and the well-known dependence of halo anisotropy on mass. When we include the dark matter distribution in our analysis, we conclude that the galaxy alignment found in simulations (and observations) can be explained by a combination of physical processes at different scales: the central galaxy aligns with the dark matter halo it inhabits, and this, in turn, aligns with the surrounding structures at large scales. Fil: Rodriguez, Facundo. 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: Merchan, Manuel Enrique. 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: Artale, Maria Celeste. Universidad Andrés Bello; Chile. Università di Padova; Italia. Istituto Nazionale di Fisica Nucleare; Italia. Purdue University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Andrews, Moira. Purdue University; Estados Unidos. Universidad Nacional de Cordoba. Facultad de Ciencias de la Comunicación.; Argentina |
description |
Motivated by observational results, we use IllustrisTNG hydrodynamical numerical simulations to study the alignment of the central galaxies in groups with the surrounding structures. This approach allows us to analyse galaxy and group properties not available in observations. To perform this analysis, we use a modified version of the two-point cross-correlation function and a measure of the angle between the semimajor axes of the central galaxies and the larger structures. Overall, our results reproduce observational ones, as we find large-scale anisotropy, which is dominated by the red central galaxies. In addition, the latter is noticeably more aligned with their group than the blue ones. In contrast to the observations, we find a strong dependence of the anisotropy on the central galaxy with mass, probably associated with the inability of observational methods to determine them. This result allows us to link the alignment to the process of halo assembly and the well-known dependence of halo anisotropy on mass. When we include the dark matter distribution in our analysis, we conclude that the galaxy alignment found in simulations (and observations) can be explained by a combination of physical processes at different scales: the central galaxy aligns with the dark matter halo it inhabits, and this, in turn, aligns with the surrounding structures at large scales. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-06 |
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/11336/226142 Rodriguez, Facundo; Merchan, Manuel Enrique; Artale, Maria Celeste; Andrews, Moira; Anisotropic correlation functions as tracers of central galaxy alignments in simulations; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 521; 4; 6-2023; 5483-5491 0035-8711 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/226142 |
identifier_str_mv |
Rodriguez, Facundo; Merchan, Manuel Enrique; Artale, Maria Celeste; Andrews, Moira; Anisotropic correlation functions as tracers of central galaxy alignments in simulations; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 521; 4; 6-2023; 5483-5491 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/521/4/5483/7086119 info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad924 info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/2212.09781 |
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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13.070432 |