Environmental effects on associations of dwarf galaxies

Autores
Yaryura, Claudia Yamila; Abadi, Mario Gabriel; Gottlöber, Stefan; Libeskind, Noam I.; Cora, Sofia Alejandra; Ruiz, Andrés Nicolás; Vega Martínez, Cristian Antonio; Yepes, Gustavo
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the properties of associations of dwarf galaxies and their dependence on the environment. Associations of dwarf galaxies are extended systems composed exclusively of dwarf galaxies, considering as dwarf galaxies those galaxies less massive than M = 10⁹ Msun/h. We identify these particular systems using a semi-analytical model of galaxy formation coupled to a dark matter only simulation in the Λ Cold Dark Matter cosmological model. To classify the environment, we estimate eigenvalues from the tidal field of the dark matter particle distribution of the simulation. We find that the majority, two thirds, of associations are located in filaments (∼ 67 per cent), followed by walls (∼ 26 per cent), while only a small fraction of them are in knots (∼ 6 per cent) and voids (∼ 1 per cent). Associations located in more dense environments present significantly higher velocity dispersion than those located in less dense environments, evidencing that the environment plays a fundamental role in their dynamical properties. However, this connection between velocity dispersion and the environment depends exclusively on whether the systems are gravitational bound or unbound, given that it disappears when we consider associations of dwarf galaxies that are gravitationally bound. Although less than a dozen observationally detected associations of dwarf galaxies are currently known, our results are predictions on the eve of forthcoming large surveys of galaxies, which will enable these very particular systems to be identified and studied.
Fil: Yaryura, Claudia Yamila. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. 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: Abadi, Mario Gabriel. 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: Gottlöber, Stefan. Leibniz-institut Für Astrophysik Potsdam; Alemania
Fil: Libeskind, Noam I.. Leibniz-institut Für Astrophysik Potsdam; Alemania
Fil: Cora, Sofia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Vega Martínez, Cristian Antonio. Universidad de La Serena; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Yepes, Gustavo. Universidad Autónoma de Madrid; España
Materia
GALAXIES: DWARFT
GALAXIES: GROUPS: GENERAL
GALAXIES: KINEMATICS AND DYNAMICS
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:11336/232878
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/232878
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Environmental effects on associations of dwarf galaxiesYaryura, Claudia YamilaAbadi, Mario GabrielGottlöber, StefanLibeskind, Noam I.Cora, Sofia AlejandraRuiz, Andrés NicolásVega Martínez, Cristian AntonioYepes, GustavoGALAXIES: DWARFTGALAXIES: GROUPS: GENERALGALAXIES: KINEMATICS AND DYNAMICShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the properties of associations of dwarf galaxies and their dependence on the environment. Associations of dwarf galaxies are extended systems composed exclusively of dwarf galaxies, considering as dwarf galaxies those galaxies less massive than M = 10⁹ Msun/h. We identify these particular systems using a semi-analytical model of galaxy formation coupled to a dark matter only simulation in the Λ Cold Dark Matter cosmological model. To classify the environment, we estimate eigenvalues from the tidal field of the dark matter particle distribution of the simulation. We find that the majority, two thirds, of associations are located in filaments (∼ 67 per cent), followed by walls (∼ 26 per cent), while only a small fraction of them are in knots (∼ 6 per cent) and voids (∼ 1 per cent). Associations located in more dense environments present significantly higher velocity dispersion than those located in less dense environments, evidencing that the environment plays a fundamental role in their dynamical properties. However, this connection between velocity dispersion and the environment depends exclusively on whether the systems are gravitational bound or unbound, given that it disappears when we consider associations of dwarf galaxies that are gravitationally bound. Although less than a dozen observationally detected associations of dwarf galaxies are currently known, our results are predictions on the eve of forthcoming large surveys of galaxies, which will enable these very particular systems to be identified and studied.Fil: Yaryura, Claudia Yamila. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. 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: Abadi, Mario Gabriel. 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: Gottlöber, Stefan. Leibniz-institut Für Astrophysik Potsdam; AlemaniaFil: Libeskind, Noam I.. Leibniz-institut Für Astrophysik Potsdam; AlemaniaFil: Cora, Sofia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: 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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; ArgentinaFil: Vega Martínez, Cristian Antonio. Universidad de La Serena; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Yepes, Gustavo. Universidad Autónoma de Madrid; EspañaWiley Blackwell Publishing, Inc2023-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/232878Yaryura, Claudia Yamila; Abadi, Mario Gabriel; Gottlöber, Stefan; Libeskind, Noam I.; Cora, Sofia Alejandra; et al.; Environmental effects on associations of dwarf galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 525; 1; 8-2023; 415-4270035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad2300info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/525/1/415/7233108info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:34:01Zoai:ri.conicet.gov.ar:11336/232878instacron: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 10:34:01.314CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Environmental effects on associations of dwarf galaxies
title Environmental effects on associations of dwarf galaxies
spellingShingle Environmental effects on associations of dwarf galaxies
Yaryura, Claudia Yamila
GALAXIES: DWARFT
GALAXIES: GROUPS: GENERAL
GALAXIES: KINEMATICS AND DYNAMICS
title_short Environmental effects on associations of dwarf galaxies
title_full Environmental effects on associations of dwarf galaxies
title_fullStr Environmental effects on associations of dwarf galaxies
title_full_unstemmed Environmental effects on associations of dwarf galaxies
title_sort Environmental effects on associations of dwarf galaxies
dc.creator.none.fl_str_mv Yaryura, Claudia Yamila
Abadi, Mario Gabriel
Gottlöber, Stefan
Libeskind, Noam I.
Cora, Sofia Alejandra
Ruiz, Andrés Nicolás
Vega Martínez, Cristian Antonio
Yepes, Gustavo
author Yaryura, Claudia Yamila
author_facet Yaryura, Claudia Yamila
Abadi, Mario Gabriel
Gottlöber, Stefan
Libeskind, Noam I.
Cora, Sofia Alejandra
Ruiz, Andrés Nicolás
Vega Martínez, Cristian Antonio
Yepes, Gustavo
author_role author
author2 Abadi, Mario Gabriel
Gottlöber, Stefan
Libeskind, Noam I.
Cora, Sofia Alejandra
Ruiz, Andrés Nicolás
Vega Martínez, Cristian Antonio
Yepes, Gustavo
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv GALAXIES: DWARFT
GALAXIES: GROUPS: GENERAL
GALAXIES: KINEMATICS AND DYNAMICS
topic GALAXIES: DWARFT
GALAXIES: GROUPS: GENERAL
GALAXIES: KINEMATICS AND DYNAMICS
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 study the properties of associations of dwarf galaxies and their dependence on the environment. Associations of dwarf galaxies are extended systems composed exclusively of dwarf galaxies, considering as dwarf galaxies those galaxies less massive than M = 10⁹ Msun/h. We identify these particular systems using a semi-analytical model of galaxy formation coupled to a dark matter only simulation in the Λ Cold Dark Matter cosmological model. To classify the environment, we estimate eigenvalues from the tidal field of the dark matter particle distribution of the simulation. We find that the majority, two thirds, of associations are located in filaments (∼ 67 per cent), followed by walls (∼ 26 per cent), while only a small fraction of them are in knots (∼ 6 per cent) and voids (∼ 1 per cent). Associations located in more dense environments present significantly higher velocity dispersion than those located in less dense environments, evidencing that the environment plays a fundamental role in their dynamical properties. However, this connection between velocity dispersion and the environment depends exclusively on whether the systems are gravitational bound or unbound, given that it disappears when we consider associations of dwarf galaxies that are gravitationally bound. Although less than a dozen observationally detected associations of dwarf galaxies are currently known, our results are predictions on the eve of forthcoming large surveys of galaxies, which will enable these very particular systems to be identified and studied.
Fil: Yaryura, Claudia Yamila. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. 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: Abadi, Mario Gabriel. 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: Gottlöber, Stefan. Leibniz-institut Für Astrophysik Potsdam; Alemania
Fil: Libeskind, Noam I.. Leibniz-institut Für Astrophysik Potsdam; Alemania
Fil: Cora, Sofia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
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. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina
Fil: Vega Martínez, Cristian Antonio. Universidad de La Serena; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Yepes, Gustavo. Universidad Autónoma de Madrid; España
description We study the properties of associations of dwarf galaxies and their dependence on the environment. Associations of dwarf galaxies are extended systems composed exclusively of dwarf galaxies, considering as dwarf galaxies those galaxies less massive than M = 10⁹ Msun/h. We identify these particular systems using a semi-analytical model of galaxy formation coupled to a dark matter only simulation in the Λ Cold Dark Matter cosmological model. To classify the environment, we estimate eigenvalues from the tidal field of the dark matter particle distribution of the simulation. We find that the majority, two thirds, of associations are located in filaments (∼ 67 per cent), followed by walls (∼ 26 per cent), while only a small fraction of them are in knots (∼ 6 per cent) and voids (∼ 1 per cent). Associations located in more dense environments present significantly higher velocity dispersion than those located in less dense environments, evidencing that the environment plays a fundamental role in their dynamical properties. However, this connection between velocity dispersion and the environment depends exclusively on whether the systems are gravitational bound or unbound, given that it disappears when we consider associations of dwarf galaxies that are gravitationally bound. Although less than a dozen observationally detected associations of dwarf galaxies are currently known, our results are predictions on the eve of forthcoming large surveys of galaxies, which will enable these very particular systems to be identified and studied.
publishDate 2023
dc.date.none.fl_str_mv 2023-08
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/11336/232878
Yaryura, Claudia Yamila; Abadi, Mario Gabriel; Gottlöber, Stefan; Libeskind, Noam I.; Cora, Sofia Alejandra; et al.; Environmental effects on associations of dwarf galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 525; 1; 8-2023; 415-427
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/232878
identifier_str_mv Yaryura, Claudia Yamila; Abadi, Mario Gabriel; Gottlöber, Stefan; Libeskind, Noam I.; Cora, Sofia Alejandra; et al.; Environmental effects on associations of dwarf galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 525; 1; 8-2023; 415-427
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/doi/10.1093/mnras/stad2300
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/525/1/415/7233108
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 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 13.070432

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