Ring galaxies in the EAGLE hydrodynamical simulations

Autores
Elagali, Ahmed; Lagos Urbina, Claudia del Pilar; IvyWong, O.; Staveley-Smith, Lister; Trayford, James W.; Schaller, Matthieu; Yuan, Tiantian; Abadi, Mario Gabriel
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the formation and evolution of ring galaxies in the Evolution and Assembly of GaLaxies and their Environments (EAGLE) simulations. We use the largest reference model Ref-L100N1504, a cubic cosmological volume of 100 cMpc on a side, to identify and characterize these systems through cosmic time. The number density of ring galaxies in EAGLE is in broad agreement with the observations. The vast majority of ring galaxies identified in EAGLE (83 per cent) have an interaction origin, i.e. form when one or more companion galaxies drop-through a disc galaxy. The remainder (17 per cent) have very long-lived ring morphologies (> 2Gyr) and host strong bars. Ring galaxies are HI-rich galaxies, yet display inefficient star formation activity and tend to reside in the green valley particularly at z ≳ 0.5. This inefficiency is mainly due to the low pressure and metallicity of their interstellar medium (ISM) compared with the ISM of similar star-forming galaxies.We find that the interaction(s) is responsible for decreasing the ISM pressure by causing the ISM gas to flow from the inner regions to the outer disc, where the ring feature forms. At a fixed radius, the star formation efficiency of ring galaxies is indistinguishable from their star-forming counterparts, and thus themain reason for their integrated lower efficiency is the different gas surface density profiles. Since galaxy morphologies are not used to tune the parameters in hydrodynamical simulations, the experiment performed here demonstrates the success of the current numerical models in EAGLE.
Fil: Elagali, Ahmed. University of Western Australia; Australia. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); Australia
Fil: Lagos Urbina, Claudia del Pilar. University of Western Australia; Australia. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); Australia
Fil: IvyWong, O.. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); Australia. University of Western Australia; Australia
Fil: Staveley-Smith, Lister. University of Western Australia; Australia. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); Australia
Fil: Trayford, James W.. University of Durham; Reino Unido. Leiden Observatory Research Institute; Países Bajos
Fil: Schaller, Matthieu. Leiden Observatory Research Institute; Países Bajos. University of Durham; Reino Unido
Fil: Yuan, Tiantian. Swinburne University Of Technology; Australia. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); Australia
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
Materia
COSMOLOGY: THEORY
GALAXIES: FORMATION
GALAXIES: HALOES
GALAXIES: STATISTICS
GALAXIES: STRUCTURE
METHODS: NUMERICAL
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:11336/87047
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/87047
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ring galaxies in the EAGLE hydrodynamical simulationsElagali, AhmedLagos Urbina, Claudia del PilarIvyWong, O.Staveley-Smith, ListerTrayford, James W.Schaller, MatthieuYuan, TiantianAbadi, Mario GabrielCOSMOLOGY: THEORYGALAXIES: FORMATIONGALAXIES: HALOESGALAXIES: STATISTICSGALAXIES: STRUCTUREMETHODS: NUMERICALhttps://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1We study the formation and evolution of ring galaxies in the Evolution and Assembly of GaLaxies and their Environments (EAGLE) simulations. We use the largest reference model Ref-L100N1504, a cubic cosmological volume of 100 cMpc on a side, to identify and characterize these systems through cosmic time. The number density of ring galaxies in EAGLE is in broad agreement with the observations. The vast majority of ring galaxies identified in EAGLE (83 per cent) have an interaction origin, i.e. form when one or more companion galaxies drop-through a disc galaxy. The remainder (17 per cent) have very long-lived ring morphologies (> 2Gyr) and host strong bars. Ring galaxies are HI-rich galaxies, yet display inefficient star formation activity and tend to reside in the green valley particularly at z ≳ 0.5. This inefficiency is mainly due to the low pressure and metallicity of their interstellar medium (ISM) compared with the ISM of similar star-forming galaxies.We find that the interaction(s) is responsible for decreasing the ISM pressure by causing the ISM gas to flow from the inner regions to the outer disc, where the ring feature forms. At a fixed radius, the star formation efficiency of ring galaxies is indistinguishable from their star-forming counterparts, and thus themain reason for their integrated lower efficiency is the different gas surface density profiles. Since galaxy morphologies are not used to tune the parameters in hydrodynamical simulations, the experiment performed here demonstrates the success of the current numerical models in EAGLE.Fil: Elagali, Ahmed. University of Western Australia; Australia. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); AustraliaFil: Lagos Urbina, Claudia del Pilar. University of Western Australia; Australia. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); AustraliaFil: IvyWong, O.. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); Australia. University of Western Australia; AustraliaFil: Staveley-Smith, Lister. University of Western Australia; Australia. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); AustraliaFil: Trayford, James W.. University of Durham; Reino Unido. Leiden Observatory Research Institute; Países BajosFil: Schaller, Matthieu. Leiden Observatory Research Institute; Países Bajos. University of Durham; Reino UnidoFil: Yuan, Tiantian. Swinburne University Of Technology; Australia. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); AustraliaFil: 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; ArgentinaWiley Blackwell Publishing, Inc2018-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/87047Elagali, Ahmed; Lagos Urbina, Claudia del Pilar; IvyWong, O.; Staveley-Smith, Lister; Trayford, James W.; et al.; Ring galaxies in the EAGLE hydrodynamical simulations; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 481; 3; 12-2018; 2951-29690035-87111365-2966CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/sty2462info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/481/3/2951/5094609?redirectedFrom=fulltextinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:34:49Zoai:ri.conicet.gov.ar:11336/87047instacron: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:34982025-10-22 11:34:49.518CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ring galaxies in the EAGLE hydrodynamical simulations
title Ring galaxies in the EAGLE hydrodynamical simulations
spellingShingle Ring galaxies in the EAGLE hydrodynamical simulations
Elagali, Ahmed
COSMOLOGY: THEORY
GALAXIES: FORMATION
GALAXIES: HALOES
GALAXIES: STATISTICS
GALAXIES: STRUCTURE
METHODS: NUMERICAL
title_short Ring galaxies in the EAGLE hydrodynamical simulations
title_full Ring galaxies in the EAGLE hydrodynamical simulations
title_fullStr Ring galaxies in the EAGLE hydrodynamical simulations
title_full_unstemmed Ring galaxies in the EAGLE hydrodynamical simulations
title_sort Ring galaxies in the EAGLE hydrodynamical simulations
dc.creator.none.fl_str_mv Elagali, Ahmed
Lagos Urbina, Claudia del Pilar
IvyWong, O.
Staveley-Smith, Lister
Trayford, James W.
Schaller, Matthieu
Yuan, Tiantian
Abadi, Mario Gabriel
author Elagali, Ahmed
author_facet Elagali, Ahmed
Lagos Urbina, Claudia del Pilar
IvyWong, O.
Staveley-Smith, Lister
Trayford, James W.
Schaller, Matthieu
Yuan, Tiantian
Abadi, Mario Gabriel
author_role author
author2 Lagos Urbina, Claudia del Pilar
IvyWong, O.
Staveley-Smith, Lister
Trayford, James W.
Schaller, Matthieu
Yuan, Tiantian
Abadi, Mario Gabriel
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv COSMOLOGY: THEORY
GALAXIES: FORMATION
GALAXIES: HALOES
GALAXIES: STATISTICS
GALAXIES: STRUCTURE
METHODS: NUMERICAL
topic COSMOLOGY: THEORY
GALAXIES: FORMATION
GALAXIES: HALOES
GALAXIES: STATISTICS
GALAXIES: STRUCTURE
METHODS: NUMERICAL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study the formation and evolution of ring galaxies in the Evolution and Assembly of GaLaxies and their Environments (EAGLE) simulations. We use the largest reference model Ref-L100N1504, a cubic cosmological volume of 100 cMpc on a side, to identify and characterize these systems through cosmic time. The number density of ring galaxies in EAGLE is in broad agreement with the observations. The vast majority of ring galaxies identified in EAGLE (83 per cent) have an interaction origin, i.e. form when one or more companion galaxies drop-through a disc galaxy. The remainder (17 per cent) have very long-lived ring morphologies (> 2Gyr) and host strong bars. Ring galaxies are HI-rich galaxies, yet display inefficient star formation activity and tend to reside in the green valley particularly at z ≳ 0.5. This inefficiency is mainly due to the low pressure and metallicity of their interstellar medium (ISM) compared with the ISM of similar star-forming galaxies.We find that the interaction(s) is responsible for decreasing the ISM pressure by causing the ISM gas to flow from the inner regions to the outer disc, where the ring feature forms. At a fixed radius, the star formation efficiency of ring galaxies is indistinguishable from their star-forming counterparts, and thus themain reason for their integrated lower efficiency is the different gas surface density profiles. Since galaxy morphologies are not used to tune the parameters in hydrodynamical simulations, the experiment performed here demonstrates the success of the current numerical models in EAGLE.
Fil: Elagali, Ahmed. University of Western Australia; Australia. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); Australia
Fil: Lagos Urbina, Claudia del Pilar. University of Western Australia; Australia. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); Australia
Fil: IvyWong, O.. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); Australia. University of Western Australia; Australia
Fil: Staveley-Smith, Lister. University of Western Australia; Australia. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); Australia
Fil: Trayford, James W.. University of Durham; Reino Unido. Leiden Observatory Research Institute; Países Bajos
Fil: Schaller, Matthieu. Leiden Observatory Research Institute; Países Bajos. University of Durham; Reino Unido
Fil: Yuan, Tiantian. Swinburne University Of Technology; Australia. Arc Centre Of Excellence For All Sky Astrophysics In 3 Dimensions (astro 3d); Australia
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
description We study the formation and evolution of ring galaxies in the Evolution and Assembly of GaLaxies and their Environments (EAGLE) simulations. We use the largest reference model Ref-L100N1504, a cubic cosmological volume of 100 cMpc on a side, to identify and characterize these systems through cosmic time. The number density of ring galaxies in EAGLE is in broad agreement with the observations. The vast majority of ring galaxies identified in EAGLE (83 per cent) have an interaction origin, i.e. form when one or more companion galaxies drop-through a disc galaxy. The remainder (17 per cent) have very long-lived ring morphologies (> 2Gyr) and host strong bars. Ring galaxies are HI-rich galaxies, yet display inefficient star formation activity and tend to reside in the green valley particularly at z ≳ 0.5. This inefficiency is mainly due to the low pressure and metallicity of their interstellar medium (ISM) compared with the ISM of similar star-forming galaxies.We find that the interaction(s) is responsible for decreasing the ISM pressure by causing the ISM gas to flow from the inner regions to the outer disc, where the ring feature forms. At a fixed radius, the star formation efficiency of ring galaxies is indistinguishable from their star-forming counterparts, and thus themain reason for their integrated lower efficiency is the different gas surface density profiles. Since galaxy morphologies are not used to tune the parameters in hydrodynamical simulations, the experiment performed here demonstrates the success of the current numerical models in EAGLE.
publishDate 2018
dc.date.none.fl_str_mv 2018-12
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/11336/87047
Elagali, Ahmed; Lagos Urbina, Claudia del Pilar; IvyWong, O.; Staveley-Smith, Lister; Trayford, James W.; et al.; Ring galaxies in the EAGLE hydrodynamical simulations; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 481; 3; 12-2018; 2951-2969
0035-8711
1365-2966
CONICET Digital
CONICET
url http://hdl.handle.net/11336/87047
identifier_str_mv Elagali, Ahmed; Lagos Urbina, Claudia del Pilar; IvyWong, O.; Staveley-Smith, Lister; Trayford, James W.; et al.; Ring galaxies in the EAGLE hydrodynamical simulations; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 481; 3; 12-2018; 2951-2969
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/doi/10.1093/mnras/sty2462
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/481/3/2951/5094609?redirectedFrom=fulltext
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
_version_ 1846781976916262912
score 12.982451

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