Exploring the outskirts of the EAGLE disc galaxies

Autores
Varela Lavin, Silvio; Tissera, Patricia Beatriz; Gómez, Facundo Ariel; Bignone, Lucas Axel; del P. Lagos, Claudia
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Observations show that the surface brightness of disc galaxies can be well-described by a single exponential (TI), up-bending (TIII), or down-bending (TII) profiles in the outskirts. Here we characterize the mass surface densities of simulated late-type galaxies from the eagle project according to their distribution of mono-age stellar populations, the star formation activity, and angular momentum content. We find a clear correlation between the inner scale lengths and the stellar spin parameter, λ, for all three disc types with λ > 0.35. The outer scale lengths of TII and TIII discs show a positive trend with λ, albeit weaker for the latter. TII discs prefer fast rotating galaxies. With regards to the stellar age distribution, negative and U-shape age profiles are the most common for all disc types. Positive age profiles are determined by a more significant contribution of young stars in the central regions, which decrease rapidly in the outer parts. TII discs prefer relative higher contributions of old stars compared to other mono-age populations across the discs whereas TIII discs become progressively more dominated by intermediate age (2-6 Gyr) stars for increasing radius. The change in slope of the age profiles is located after the break of the mass surface density. We find evidence of larger flaring for the old stellar populations in TIII systems compared to TI and TII, which could indicate the action of other processes. Overall, the relative distributions of mono-age stellar populations and the dependence of the star formation activity on radius are found to shape the different disc types and age profiles.
Fil: Varela Lavin, Silvio. Universidad de La Serena; Chile
Fil: Tissera, Patricia Beatriz. Consejo Nacional de Investigaciones 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. Pontificia Universidad Católica de Chile; Chile. Universidad Católica de Chile; Chile
Fil: Gómez, Facundo Ariel. Universidad de La Serena; Chile
Fil: Bignone, Lucas Axel. Consejo Nacional de Investigaciones 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: del P. Lagos, Claudia. University of Western Australia; Australia
Materia
GALAXIES: EVOLUTION
GALAXIES: FORMATION
GALAXIES: STELLAR CONTENT
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:11336/217574
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Exploring the outskirts of the EAGLE disc galaxiesVarela Lavin, SilvioTissera, Patricia BeatrizGómez, Facundo ArielBignone, Lucas Axeldel P. Lagos, ClaudiaGALAXIES: EVOLUTIONGALAXIES: FORMATIONGALAXIES: STELLAR CONTENThttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Observations show that the surface brightness of disc galaxies can be well-described by a single exponential (TI), up-bending (TIII), or down-bending (TII) profiles in the outskirts. Here we characterize the mass surface densities of simulated late-type galaxies from the eagle project according to their distribution of mono-age stellar populations, the star formation activity, and angular momentum content. We find a clear correlation between the inner scale lengths and the stellar spin parameter, λ, for all three disc types with λ > 0.35. The outer scale lengths of TII and TIII discs show a positive trend with λ, albeit weaker for the latter. TII discs prefer fast rotating galaxies. With regards to the stellar age distribution, negative and U-shape age profiles are the most common for all disc types. Positive age profiles are determined by a more significant contribution of young stars in the central regions, which decrease rapidly in the outer parts. TII discs prefer relative higher contributions of old stars compared to other mono-age populations across the discs whereas TIII discs become progressively more dominated by intermediate age (2-6 Gyr) stars for increasing radius. The change in slope of the age profiles is located after the break of the mass surface density. We find evidence of larger flaring for the old stellar populations in TIII systems compared to TI and TII, which could indicate the action of other processes. Overall, the relative distributions of mono-age stellar populations and the dependence of the star formation activity on radius are found to shape the different disc types and age profiles.Fil: Varela Lavin, Silvio. Universidad de La Serena; ChileFil: Tissera, Patricia Beatriz. Consejo Nacional de Investigaciones 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. Pontificia Universidad Católica de Chile; Chile. Universidad Católica de Chile; ChileFil: Gómez, Facundo Ariel. Universidad de La Serena; ChileFil: Bignone, Lucas Axel. Consejo Nacional de Investigaciones 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: del P. Lagos, Claudia. University of Western Australia; AustraliaWiley Blackwell Publishing, Inc2022-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/217574Varela Lavin, Silvio; Tissera, Patricia Beatriz; Gómez, Facundo Ariel; Bignone, Lucas Axel; del P. Lagos, Claudia; Exploring the outskirts of the EAGLE disc galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 514; 4; 8-2022; 5340-53540035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stac1536info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/514/4/5340/6601451info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:34:59Zoai:ri.conicet.gov.ar:11336/217574instacron: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:34982025-10-15 15:35:00.002CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Exploring the outskirts of the EAGLE disc galaxies
title Exploring the outskirts of the EAGLE disc galaxies
spellingShingle Exploring the outskirts of the EAGLE disc galaxies
Varela Lavin, Silvio
GALAXIES: EVOLUTION
GALAXIES: FORMATION
GALAXIES: STELLAR CONTENT
title_short Exploring the outskirts of the EAGLE disc galaxies
title_full Exploring the outskirts of the EAGLE disc galaxies
title_fullStr Exploring the outskirts of the EAGLE disc galaxies
title_full_unstemmed Exploring the outskirts of the EAGLE disc galaxies
title_sort Exploring the outskirts of the EAGLE disc galaxies
dc.creator.none.fl_str_mv Varela Lavin, Silvio
Tissera, Patricia Beatriz
Gómez, Facundo Ariel
Bignone, Lucas Axel
del P. Lagos, Claudia
author Varela Lavin, Silvio
author_facet Varela Lavin, Silvio
Tissera, Patricia Beatriz
Gómez, Facundo Ariel
Bignone, Lucas Axel
del P. Lagos, Claudia
author_role author
author2 Tissera, Patricia Beatriz
Gómez, Facundo Ariel
Bignone, Lucas Axel
del P. Lagos, Claudia
author2_role author
author
author
author
dc.subject.none.fl_str_mv GALAXIES: EVOLUTION
GALAXIES: FORMATION
GALAXIES: STELLAR CONTENT
topic GALAXIES: EVOLUTION
GALAXIES: FORMATION
GALAXIES: STELLAR CONTENT
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Observations show that the surface brightness of disc galaxies can be well-described by a single exponential (TI), up-bending (TIII), or down-bending (TII) profiles in the outskirts. Here we characterize the mass surface densities of simulated late-type galaxies from the eagle project according to their distribution of mono-age stellar populations, the star formation activity, and angular momentum content. We find a clear correlation between the inner scale lengths and the stellar spin parameter, λ, for all three disc types with λ > 0.35. The outer scale lengths of TII and TIII discs show a positive trend with λ, albeit weaker for the latter. TII discs prefer fast rotating galaxies. With regards to the stellar age distribution, negative and U-shape age profiles are the most common for all disc types. Positive age profiles are determined by a more significant contribution of young stars in the central regions, which decrease rapidly in the outer parts. TII discs prefer relative higher contributions of old stars compared to other mono-age populations across the discs whereas TIII discs become progressively more dominated by intermediate age (2-6 Gyr) stars for increasing radius. The change in slope of the age profiles is located after the break of the mass surface density. We find evidence of larger flaring for the old stellar populations in TIII systems compared to TI and TII, which could indicate the action of other processes. Overall, the relative distributions of mono-age stellar populations and the dependence of the star formation activity on radius are found to shape the different disc types and age profiles.
Fil: Varela Lavin, Silvio. Universidad de La Serena; Chile
Fil: Tissera, Patricia Beatriz. Consejo Nacional de Investigaciones 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. Pontificia Universidad Católica de Chile; Chile. Universidad Católica de Chile; Chile
Fil: Gómez, Facundo Ariel. Universidad de La Serena; Chile
Fil: Bignone, Lucas Axel. Consejo Nacional de Investigaciones 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: del P. Lagos, Claudia. University of Western Australia; Australia
description Observations show that the surface brightness of disc galaxies can be well-described by a single exponential (TI), up-bending (TIII), or down-bending (TII) profiles in the outskirts. Here we characterize the mass surface densities of simulated late-type galaxies from the eagle project according to their distribution of mono-age stellar populations, the star formation activity, and angular momentum content. We find a clear correlation between the inner scale lengths and the stellar spin parameter, λ, for all three disc types with λ > 0.35. The outer scale lengths of TII and TIII discs show a positive trend with λ, albeit weaker for the latter. TII discs prefer fast rotating galaxies. With regards to the stellar age distribution, negative and U-shape age profiles are the most common for all disc types. Positive age profiles are determined by a more significant contribution of young stars in the central regions, which decrease rapidly in the outer parts. TII discs prefer relative higher contributions of old stars compared to other mono-age populations across the discs whereas TIII discs become progressively more dominated by intermediate age (2-6 Gyr) stars for increasing radius. The change in slope of the age profiles is located after the break of the mass surface density. We find evidence of larger flaring for the old stellar populations in TIII systems compared to TI and TII, which could indicate the action of other processes. Overall, the relative distributions of mono-age stellar populations and the dependence of the star formation activity on radius are found to shape the different disc types and age profiles.
publishDate 2022
dc.date.none.fl_str_mv 2022-08
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/11336/217574
Varela Lavin, Silvio; Tissera, Patricia Beatriz; Gómez, Facundo Ariel; Bignone, Lucas Axel; del P. Lagos, Claudia; Exploring the outskirts of the EAGLE disc galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 514; 4; 8-2022; 5340-5354
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/217574
identifier_str_mv Varela Lavin, Silvio; Tissera, Patricia Beatriz; Gómez, Facundo Ariel; Bignone, Lucas Axel; del P. Lagos, Claudia; Exploring the outskirts of the EAGLE disc galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 514; 4; 8-2022; 5340-5354
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/stac1536
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/514/4/5340/6601451
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 13.22299

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