Field spheroid-dominated galaxies in a Λ-CDM Universe

Autores
Rosito, María Sol; Pedrosa, Susana Elizabeth; Tissera, Patricia Beatriz; Avila Reese, Vladimir; Lacerna, I.; Bignone, Lucas Axel; Ibarra-Medel, H.J.; Varela, S.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context. Understanding the formation and evolution of early-type, spheroid-dominated galaxies is an open question within the context of the hierarchical clustering scenario, particularly in low-density environments. Aims. Our goal is to study the main structural, dynamical, and stellar population properties and assembly histories of field spheroid-dominated galaxies formed in a Λ-cold dark matter (Λ-CDM) scenario to assess to what extent they are consistent with observations. Methods. We selected spheroid-dominated systems from a Λ-CDM simulation that includes star formation (SF), chemical evolution, and supernova feedback. The sample is made up of 18 field systems with MStar ≤ 6 × 1010M⊙ that are dominated by the spheroid component. For this sample we estimated the fundamental relations of ellipticals and compared them with current observations. Results. The simulated spheroid galaxies have sizes that are in good agreement with observations. The bulges follow a Sersic law with Sersic indexes that correlate with the bulge-to-total mass ratios. The structural-dynamical properties of the simulated galaxies are consistent with observed Faber-Jackson, fundamental plane, and Tully-Fisher relations. However, the simulated galaxies are bluer and with higher star formation rates (SFRs) than the observed isolated early-type galaxies. The archaeological mass growth histories show a slightly delayed formation and more prominent inside-out growth mode than observational inferences based on the fossil record method. Conclusions. The main structural and dynamical properties of the simulated spheroid-dominated galaxies are consistent with observations. This is remarkable since our simulation has not been calibrated to match them. However, the simulated galaxies are blue and star-forming, and with later stellar mass growth histories compared to observational inferences. This is mainly due to the persistence of extended discs in the simulations. The need for more efficient quenching mechanisms able to avoid further disc growth and SF is required in order to reproduce current observational trends.
Fil: Rosito, María Sol. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Pedrosa, Susana Elizabeth. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Tissera, Patricia Beatriz. Universidad Andrés Bello; Chile
Fil: Avila Reese, Vladimir. Universidad Nacional Autónoma de México; México
Fil: Lacerna, I.. Universidad Católica de Chile; Chile
Fil: Bignone, Lucas Axel. Pontificia Universidad Católica de Chile; Chile
Fil: Ibarra-Medel, H.J.. Universidad Andrés Bello; Chile
Fil: Varela, S.. Universidad Andrés Bello; Chile
Materia
GALAXIES: ELLIPTICAL AND LENTICULAR, CD
GALAXIES: FORMATION
GALAXIES: FUNDAMENTAL PARAMETERS
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:11336/86340
Acceder
id CONICETDig_d7c05a858dbc76553f1f7770e498f973
oai_identifier_str oai:ri.conicet.gov.ar:11336/86340
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Field spheroid-dominated galaxies in a Λ-CDM UniverseRosito, María SolPedrosa, Susana ElizabethTissera, Patricia BeatrizAvila Reese, VladimirLacerna, I.Bignone, Lucas AxelIbarra-Medel, H.J.Varela, S.GALAXIES: ELLIPTICAL AND LENTICULAR, CDGALAXIES: FORMATIONGALAXIES: FUNDAMENTAL PARAMETERShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. Understanding the formation and evolution of early-type, spheroid-dominated galaxies is an open question within the context of the hierarchical clustering scenario, particularly in low-density environments. Aims. Our goal is to study the main structural, dynamical, and stellar population properties and assembly histories of field spheroid-dominated galaxies formed in a Λ-cold dark matter (Λ-CDM) scenario to assess to what extent they are consistent with observations. Methods. We selected spheroid-dominated systems from a Λ-CDM simulation that includes star formation (SF), chemical evolution, and supernova feedback. The sample is made up of 18 field systems with MStar ≤ 6 × 1010M⊙ that are dominated by the spheroid component. For this sample we estimated the fundamental relations of ellipticals and compared them with current observations. Results. The simulated spheroid galaxies have sizes that are in good agreement with observations. The bulges follow a Sersic law with Sersic indexes that correlate with the bulge-to-total mass ratios. The structural-dynamical properties of the simulated galaxies are consistent with observed Faber-Jackson, fundamental plane, and Tully-Fisher relations. However, the simulated galaxies are bluer and with higher star formation rates (SFRs) than the observed isolated early-type galaxies. The archaeological mass growth histories show a slightly delayed formation and more prominent inside-out growth mode than observational inferences based on the fossil record method. Conclusions. The main structural and dynamical properties of the simulated spheroid-dominated galaxies are consistent with observations. This is remarkable since our simulation has not been calibrated to match them. However, the simulated galaxies are blue and star-forming, and with later stellar mass growth histories compared to observational inferences. This is mainly due to the persistence of extended discs in the simulations. The need for more efficient quenching mechanisms able to avoid further disc growth and SF is required in order to reproduce current observational trends.Fil: Rosito, María Sol. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Pedrosa, Susana Elizabeth. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Tissera, Patricia Beatriz. Universidad Andrés Bello; ChileFil: Avila Reese, Vladimir. Universidad Nacional Autónoma de México; MéxicoFil: Lacerna, I.. Universidad Católica de Chile; ChileFil: Bignone, Lucas Axel. Pontificia Universidad Católica de Chile; ChileFil: Ibarra-Medel, H.J.. Universidad Andrés Bello; ChileFil: Varela, S.. Universidad Andrés Bello; ChileEDP Sciences2018-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/86340Rosito, María Sol; Pedrosa, Susana Elizabeth; Tissera, Patricia Beatriz; Avila Reese, Vladimir; Lacerna, I.; et al.; Field spheroid-dominated galaxies in a Λ-CDM Universe; EDP Sciences; Astronomy and Astrophysics; 614; A85; 6-2018; 1-220004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/201732302info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201732302info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:03:57Zoai:ri.conicet.gov.ar:11336/86340instacron: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 10:03:57.517CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Field spheroid-dominated galaxies in a Λ-CDM Universe
title Field spheroid-dominated galaxies in a Λ-CDM Universe
spellingShingle Field spheroid-dominated galaxies in a Λ-CDM Universe
Rosito, María Sol
GALAXIES: ELLIPTICAL AND LENTICULAR, CD
GALAXIES: FORMATION
GALAXIES: FUNDAMENTAL PARAMETERS
title_short Field spheroid-dominated galaxies in a Λ-CDM Universe
title_full Field spheroid-dominated galaxies in a Λ-CDM Universe
title_fullStr Field spheroid-dominated galaxies in a Λ-CDM Universe
title_full_unstemmed Field spheroid-dominated galaxies in a Λ-CDM Universe
title_sort Field spheroid-dominated galaxies in a Λ-CDM Universe
dc.creator.none.fl_str_mv Rosito, María Sol
Pedrosa, Susana Elizabeth
Tissera, Patricia Beatriz
Avila Reese, Vladimir
Lacerna, I.
Bignone, Lucas Axel
Ibarra-Medel, H.J.
Varela, S.
author Rosito, María Sol
author_facet Rosito, María Sol
Pedrosa, Susana Elizabeth
Tissera, Patricia Beatriz
Avila Reese, Vladimir
Lacerna, I.
Bignone, Lucas Axel
Ibarra-Medel, H.J.
Varela, S.
author_role author
author2 Pedrosa, Susana Elizabeth
Tissera, Patricia Beatriz
Avila Reese, Vladimir
Lacerna, I.
Bignone, Lucas Axel
Ibarra-Medel, H.J.
Varela, S.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv GALAXIES: ELLIPTICAL AND LENTICULAR, CD
GALAXIES: FORMATION
GALAXIES: FUNDAMENTAL PARAMETERS
topic GALAXIES: ELLIPTICAL AND LENTICULAR, CD
GALAXIES: FORMATION
GALAXIES: FUNDAMENTAL PARAMETERS
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. Understanding the formation and evolution of early-type, spheroid-dominated galaxies is an open question within the context of the hierarchical clustering scenario, particularly in low-density environments. Aims. Our goal is to study the main structural, dynamical, and stellar population properties and assembly histories of field spheroid-dominated galaxies formed in a Λ-cold dark matter (Λ-CDM) scenario to assess to what extent they are consistent with observations. Methods. We selected spheroid-dominated systems from a Λ-CDM simulation that includes star formation (SF), chemical evolution, and supernova feedback. The sample is made up of 18 field systems with MStar ≤ 6 × 1010M⊙ that are dominated by the spheroid component. For this sample we estimated the fundamental relations of ellipticals and compared them with current observations. Results. The simulated spheroid galaxies have sizes that are in good agreement with observations. The bulges follow a Sersic law with Sersic indexes that correlate with the bulge-to-total mass ratios. The structural-dynamical properties of the simulated galaxies are consistent with observed Faber-Jackson, fundamental plane, and Tully-Fisher relations. However, the simulated galaxies are bluer and with higher star formation rates (SFRs) than the observed isolated early-type galaxies. The archaeological mass growth histories show a slightly delayed formation and more prominent inside-out growth mode than observational inferences based on the fossil record method. Conclusions. The main structural and dynamical properties of the simulated spheroid-dominated galaxies are consistent with observations. This is remarkable since our simulation has not been calibrated to match them. However, the simulated galaxies are blue and star-forming, and with later stellar mass growth histories compared to observational inferences. This is mainly due to the persistence of extended discs in the simulations. The need for more efficient quenching mechanisms able to avoid further disc growth and SF is required in order to reproduce current observational trends.
Fil: Rosito, María Sol. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Pedrosa, Susana Elizabeth. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Tissera, Patricia Beatriz. Universidad Andrés Bello; Chile
Fil: Avila Reese, Vladimir. Universidad Nacional Autónoma de México; México
Fil: Lacerna, I.. Universidad Católica de Chile; Chile
Fil: Bignone, Lucas Axel. Pontificia Universidad Católica de Chile; Chile
Fil: Ibarra-Medel, H.J.. Universidad Andrés Bello; Chile
Fil: Varela, S.. Universidad Andrés Bello; Chile
description Context. Understanding the formation and evolution of early-type, spheroid-dominated galaxies is an open question within the context of the hierarchical clustering scenario, particularly in low-density environments. Aims. Our goal is to study the main structural, dynamical, and stellar population properties and assembly histories of field spheroid-dominated galaxies formed in a Λ-cold dark matter (Λ-CDM) scenario to assess to what extent they are consistent with observations. Methods. We selected spheroid-dominated systems from a Λ-CDM simulation that includes star formation (SF), chemical evolution, and supernova feedback. The sample is made up of 18 field systems with MStar ≤ 6 × 1010M⊙ that are dominated by the spheroid component. For this sample we estimated the fundamental relations of ellipticals and compared them with current observations. Results. The simulated spheroid galaxies have sizes that are in good agreement with observations. The bulges follow a Sersic law with Sersic indexes that correlate with the bulge-to-total mass ratios. The structural-dynamical properties of the simulated galaxies are consistent with observed Faber-Jackson, fundamental plane, and Tully-Fisher relations. However, the simulated galaxies are bluer and with higher star formation rates (SFRs) than the observed isolated early-type galaxies. The archaeological mass growth histories show a slightly delayed formation and more prominent inside-out growth mode than observational inferences based on the fossil record method. Conclusions. The main structural and dynamical properties of the simulated spheroid-dominated galaxies are consistent with observations. This is remarkable since our simulation has not been calibrated to match them. However, the simulated galaxies are blue and star-forming, and with later stellar mass growth histories compared to observational inferences. This is mainly due to the persistence of extended discs in the simulations. The need for more efficient quenching mechanisms able to avoid further disc growth and SF is required in order to reproduce current observational trends.
publishDate 2018
dc.date.none.fl_str_mv 2018-06
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/11336/86340
Rosito, María Sol; Pedrosa, Susana Elizabeth; Tissera, Patricia Beatriz; Avila Reese, Vladimir; Lacerna, I.; et al.; Field spheroid-dominated galaxies in a Λ-CDM Universe; EDP Sciences; Astronomy and Astrophysics; 614; A85; 6-2018; 1-22
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/86340
identifier_str_mv Rosito, María Sol; Pedrosa, Susana Elizabeth; Tissera, Patricia Beatriz; Avila Reese, Vladimir; Lacerna, I.; et al.; Field spheroid-dominated galaxies in a Λ-CDM Universe; EDP Sciences; Astronomy and Astrophysics; 614; A85; 6-2018; 1-22
0004-6361
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://www.aanda.org/10.1051/0004-6361/201732302
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201732302
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
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
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score 13.13397

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