The invariance of group occupation across the cosmic web

Autores
Izzo Dominguez, Vicente; Rodriguez, Facundo; Montero Dorta, Antonio D.
Año de publicación
2026
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context. Recent efforts to identify secondary variations in the halo occupation distribution (HOD) have primarily focused on simulations that examine the role of large-scale cosmic environments, such as superclusters, filaments, and under-dense regions or voids. If present, these variations can yield valuable insights into galaxy formation mechanisms, halo assembly processes, and the influence of external factors on the evolution of cosmic structure. Aims. We aim to explore whether the secondary trends in the HOD driven by the large-scale structure of the Universe are present observationally. In particular, we examined whether the HOD depends on the distance to key features of the cosmic web by explicitly quantifying these spatial relationships. We further analyzed whether HODs vary across different cosmic environments, as defined by critical point classifications, and assessed the influence of intrinsic galaxy properties, such as the central galaxy color. Methods. We created volume-limited galaxy samples from SDSS DR18 and used a group catalog to determine halo masses and to identify central and satellite galaxy membership. Additionally, we employed a DisPerSE catalog to locate critical points such as maxima, minima, and filaments in the cosmic web. We assessed how the HOD varies based on proximity to these features and analyzed these variations across five distinct cosmic environments. Furthermore, we investigated trends related to the color of central galaxies and tested the reliability of our results by using alternative DisPerSE catalogs generated with different smoothing scales and persistence thresholds. Results. Our analysis confirms that the large-scale cosmic environment only weakly influences the HOD. However, second-order environmental dependences might be revealed through a multivariate approach that combines both local and large-scale environment metrics with intrinsic galaxy properties. Future investigations that employ next-generation surveys with improved statistical power, coupled with sophisticated modeling techniques, may provide the necessary precision to detect and characterize these subtle environmental correlations.
Fil: Izzo Dominguez, Vicente. Universidad Técnica Federico Santa María; Chile
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
Fil: Montero Dorta, Antonio D.. Universidad Técnica Federico Santa María; Chile
Materia
METHODS: STATISTICAL
GALAXIES: GROUPS: GENERAL
GALAXIES: HALOS / DARK MATTER
LARGE-SCALE STRUCTURE OF 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:11336/285123
Acceder
id CONICETDig_458ce26c26f995cfef7cb5165b1862e4
oai_identifier_str oai:ri.conicet.gov.ar:11336/285123
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The invariance of group occupation across the cosmic webIzzo Dominguez, VicenteRodriguez, FacundoMontero Dorta, Antonio D.METHODS: STATISTICALGALAXIES: GROUPS: GENERALGALAXIES: HALOS / DARK MATTERLARGE-SCALE STRUCTURE OF UNIVERSEhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. Recent efforts to identify secondary variations in the halo occupation distribution (HOD) have primarily focused on simulations that examine the role of large-scale cosmic environments, such as superclusters, filaments, and under-dense regions or voids. If present, these variations can yield valuable insights into galaxy formation mechanisms, halo assembly processes, and the influence of external factors on the evolution of cosmic structure. Aims. We aim to explore whether the secondary trends in the HOD driven by the large-scale structure of the Universe are present observationally. In particular, we examined whether the HOD depends on the distance to key features of the cosmic web by explicitly quantifying these spatial relationships. We further analyzed whether HODs vary across different cosmic environments, as defined by critical point classifications, and assessed the influence of intrinsic galaxy properties, such as the central galaxy color. Methods. We created volume-limited galaxy samples from SDSS DR18 and used a group catalog to determine halo masses and to identify central and satellite galaxy membership. Additionally, we employed a DisPerSE catalog to locate critical points such as maxima, minima, and filaments in the cosmic web. We assessed how the HOD varies based on proximity to these features and analyzed these variations across five distinct cosmic environments. Furthermore, we investigated trends related to the color of central galaxies and tested the reliability of our results by using alternative DisPerSE catalogs generated with different smoothing scales and persistence thresholds. Results. Our analysis confirms that the large-scale cosmic environment only weakly influences the HOD. However, second-order environmental dependences might be revealed through a multivariate approach that combines both local and large-scale environment metrics with intrinsic galaxy properties. Future investigations that employ next-generation surveys with improved statistical power, coupled with sophisticated modeling techniques, may provide the necessary precision to detect and characterize these subtle environmental correlations.Fil: Izzo Dominguez, Vicente. Universidad Técnica Federico Santa María; ChileFil: 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; ArgentinaFil: Montero Dorta, Antonio D.. Universidad Técnica Federico Santa María; ChileEDP Sciences2026-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/285123Izzo Dominguez, Vicente; Rodriguez, Facundo; Montero Dorta, Antonio D.; The invariance of group occupation across the cosmic web; EDP Sciences; Astronomy and Astrophysics; 706; A42; 1-2026; 1-120004-6361CONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202556548info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202556548info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T14:30:36Zoai:ri.conicet.gov.ar:11336/285123instacron: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:34982026-08-25 14:30:36.267CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The invariance of group occupation across the cosmic web
title The invariance of group occupation across the cosmic web
spellingShingle The invariance of group occupation across the cosmic web
Izzo Dominguez, Vicente
METHODS: STATISTICAL
GALAXIES: GROUPS: GENERAL
GALAXIES: HALOS / DARK MATTER
LARGE-SCALE STRUCTURE OF UNIVERSE
title_short The invariance of group occupation across the cosmic web
title_full The invariance of group occupation across the cosmic web
title_fullStr The invariance of group occupation across the cosmic web
title_full_unstemmed The invariance of group occupation across the cosmic web
title_sort The invariance of group occupation across the cosmic web
dc.creator.none.fl_str_mv Izzo Dominguez, Vicente
Rodriguez, Facundo
Montero Dorta, Antonio D.
author Izzo Dominguez, Vicente
author_facet Izzo Dominguez, Vicente
Rodriguez, Facundo
Montero Dorta, Antonio D.
author_role author
author2 Rodriguez, Facundo
Montero Dorta, Antonio D.
author2_role author
author
dc.subject.none.fl_str_mv METHODS: STATISTICAL
GALAXIES: GROUPS: GENERAL
GALAXIES: HALOS / DARK MATTER
LARGE-SCALE STRUCTURE OF UNIVERSE
topic METHODS: STATISTICAL
GALAXIES: GROUPS: GENERAL
GALAXIES: HALOS / DARK MATTER
LARGE-SCALE STRUCTURE OF 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 Context. Recent efforts to identify secondary variations in the halo occupation distribution (HOD) have primarily focused on simulations that examine the role of large-scale cosmic environments, such as superclusters, filaments, and under-dense regions or voids. If present, these variations can yield valuable insights into galaxy formation mechanisms, halo assembly processes, and the influence of external factors on the evolution of cosmic structure. Aims. We aim to explore whether the secondary trends in the HOD driven by the large-scale structure of the Universe are present observationally. In particular, we examined whether the HOD depends on the distance to key features of the cosmic web by explicitly quantifying these spatial relationships. We further analyzed whether HODs vary across different cosmic environments, as defined by critical point classifications, and assessed the influence of intrinsic galaxy properties, such as the central galaxy color. Methods. We created volume-limited galaxy samples from SDSS DR18 and used a group catalog to determine halo masses and to identify central and satellite galaxy membership. Additionally, we employed a DisPerSE catalog to locate critical points such as maxima, minima, and filaments in the cosmic web. We assessed how the HOD varies based on proximity to these features and analyzed these variations across five distinct cosmic environments. Furthermore, we investigated trends related to the color of central galaxies and tested the reliability of our results by using alternative DisPerSE catalogs generated with different smoothing scales and persistence thresholds. Results. Our analysis confirms that the large-scale cosmic environment only weakly influences the HOD. However, second-order environmental dependences might be revealed through a multivariate approach that combines both local and large-scale environment metrics with intrinsic galaxy properties. Future investigations that employ next-generation surveys with improved statistical power, coupled with sophisticated modeling techniques, may provide the necessary precision to detect and characterize these subtle environmental correlations.
Fil: Izzo Dominguez, Vicente. Universidad Técnica Federico Santa María; Chile
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
Fil: Montero Dorta, Antonio D.. Universidad Técnica Federico Santa María; Chile
description Context. Recent efforts to identify secondary variations in the halo occupation distribution (HOD) have primarily focused on simulations that examine the role of large-scale cosmic environments, such as superclusters, filaments, and under-dense regions or voids. If present, these variations can yield valuable insights into galaxy formation mechanisms, halo assembly processes, and the influence of external factors on the evolution of cosmic structure. Aims. We aim to explore whether the secondary trends in the HOD driven by the large-scale structure of the Universe are present observationally. In particular, we examined whether the HOD depends on the distance to key features of the cosmic web by explicitly quantifying these spatial relationships. We further analyzed whether HODs vary across different cosmic environments, as defined by critical point classifications, and assessed the influence of intrinsic galaxy properties, such as the central galaxy color. Methods. We created volume-limited galaxy samples from SDSS DR18 and used a group catalog to determine halo masses and to identify central and satellite galaxy membership. Additionally, we employed a DisPerSE catalog to locate critical points such as maxima, minima, and filaments in the cosmic web. We assessed how the HOD varies based on proximity to these features and analyzed these variations across five distinct cosmic environments. Furthermore, we investigated trends related to the color of central galaxies and tested the reliability of our results by using alternative DisPerSE catalogs generated with different smoothing scales and persistence thresholds. Results. Our analysis confirms that the large-scale cosmic environment only weakly influences the HOD. However, second-order environmental dependences might be revealed through a multivariate approach that combines both local and large-scale environment metrics with intrinsic galaxy properties. Future investigations that employ next-generation surveys with improved statistical power, coupled with sophisticated modeling techniques, may provide the necessary precision to detect and characterize these subtle environmental correlations.
publishDate 2026
dc.date.none.fl_str_mv 2026-01
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/11336/285123
Izzo Dominguez, Vicente; Rodriguez, Facundo; Montero Dorta, Antonio D.; The invariance of group occupation across the cosmic web; EDP Sciences; Astronomy and Astrophysics; 706; A42; 1-2026; 1-12
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/285123
identifier_str_mv Izzo Dominguez, Vicente; Rodriguez, Facundo; Montero Dorta, Antonio D.; The invariance of group occupation across the cosmic web; EDP Sciences; Astronomy and Astrophysics; 706; A42; 1-2026; 1-12
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202556548
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202556548
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
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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
_version_ 1874774026571743232
score 13.265058

Publicaciones similares