The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations
- Autores
- Tissera, Patricia Beatriz; Rosas Guevara, Yetli; Sillero Ros, Guillermo Emanuel; Pedrosa, Susana Elizabeth; Theuns, Tom; Bignone, Lucas Axel
- Año de publicación
- 2021
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We analyse the evolution of the oxygen abundance gradient of star-forming galaxies with stellar mass M*≥10 9 M ⊙in the EAGLE simulation o v er the redshift range z = [0, 2.5]. We find that the median metallicity gradient of the simulated galaxies is close to zero at all z, whereas the scatter around the median increases with z. The metallicity gradients of individual galaxies can evolve from strong to weak and vice versa, since mostly low-metallicity gas accretes on to the galaxy, resulting in enhanced star formation and ejection of metal-enriched gas by energy feedback. Such episodes of enhanced accretion, mainly dominated by major mergers, are more common at higher z and hence contribute to increasing the diversity of gradients. For galaxies with ne gativ e metallicity gradients, we find a redshift evolution of ∼-0 . 03 de x kpc -1 /δz. A positiv e mass dependence is found at z ≤0.5, which becomes slightly stronger for higher redshifts and, mainly, for M*< 10 9 . 5 M ⊙. Only galaxies with ne gativ e metallicity gradients define a correlation with galaxy size, consistent with an inside-out formation scenario. Our findings suggest that major mergers and/or significant gas accretion can drive strong ne gativ e or positiv e metallicity gradients. The first ones are preferentially associated with disc-dominated galaxies, and the second ones with dispersion-dominated systems. The comparison with forthcoming observations at high redshift will allow a better understanding of the potential role of metallicity gradients as a chemical probe of galaxy formation.
Fil: Tissera, Patricia Beatriz. Pontificia Universidad Católica de Chile; Chile. 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: Rosas Guevara, Yetli. Donostia International Physic Center (dipc);
Fil: Sillero Ros, Guillermo Emanuel. 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: Pedrosa, Susana Elizabeth. 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: Theuns, Tom. University Of Durham. Dep.of Physics; Reino Unido
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 - Materia
-
DARK MATTER
GALAXIES: ABUNDANCES
GALAXIES: EVOLUTION - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/181510
Ver los metadatos del registro completo
id |
CONICETDig_90edf989672da9a66839d364a05da70e |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/181510 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulationsTissera, Patricia BeatrizRosas Guevara, YetliSillero Ros, Guillermo EmanuelPedrosa, Susana ElizabethTheuns, TomBignone, Lucas AxelDARK MATTERGALAXIES: ABUNDANCESGALAXIES: EVOLUTIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyse the evolution of the oxygen abundance gradient of star-forming galaxies with stellar mass M*≥10 9 M ⊙in the EAGLE simulation o v er the redshift range z = [0, 2.5]. We find that the median metallicity gradient of the simulated galaxies is close to zero at all z, whereas the scatter around the median increases with z. The metallicity gradients of individual galaxies can evolve from strong to weak and vice versa, since mostly low-metallicity gas accretes on to the galaxy, resulting in enhanced star formation and ejection of metal-enriched gas by energy feedback. Such episodes of enhanced accretion, mainly dominated by major mergers, are more common at higher z and hence contribute to increasing the diversity of gradients. For galaxies with ne gativ e metallicity gradients, we find a redshift evolution of ∼-0 . 03 de x kpc -1 /δz. A positiv e mass dependence is found at z ≤0.5, which becomes slightly stronger for higher redshifts and, mainly, for M*< 10 9 . 5 M ⊙. Only galaxies with ne gativ e metallicity gradients define a correlation with galaxy size, consistent with an inside-out formation scenario. Our findings suggest that major mergers and/or significant gas accretion can drive strong ne gativ e or positiv e metallicity gradients. The first ones are preferentially associated with disc-dominated galaxies, and the second ones with dispersion-dominated systems. The comparison with forthcoming observations at high redshift will allow a better understanding of the potential role of metallicity gradients as a chemical probe of galaxy formation.Fil: Tissera, Patricia Beatriz. Pontificia Universidad Católica de Chile; Chile. 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: Rosas Guevara, Yetli. Donostia International Physic Center (dipc);Fil: Sillero Ros, Guillermo Emanuel. 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: Pedrosa, Susana Elizabeth. 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: Theuns, Tom. University Of Durham. Dep.of Physics; Reino UnidoFil: 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; ArgentinaOxford University Press2021-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/181510Tissera, Patricia Beatriz; Rosas Guevara, Yetli; Sillero Ros, Guillermo Emanuel; Pedrosa, Susana Elizabeth; Theuns, Tom; et al.; The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 511; 2; 12-2021; 1667-16840035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stab3644/6472260info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab3644info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:18Zoai:ri.conicet.gov.ar:11336/181510instacron: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 09:40:18.447CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations |
title |
The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations |
spellingShingle |
The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations Tissera, Patricia Beatriz DARK MATTER GALAXIES: ABUNDANCES GALAXIES: EVOLUTION |
title_short |
The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations |
title_full |
The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations |
title_fullStr |
The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations |
title_full_unstemmed |
The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations |
title_sort |
The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations |
dc.creator.none.fl_str_mv |
Tissera, Patricia Beatriz Rosas Guevara, Yetli Sillero Ros, Guillermo Emanuel Pedrosa, Susana Elizabeth Theuns, Tom Bignone, Lucas Axel |
author |
Tissera, Patricia Beatriz |
author_facet |
Tissera, Patricia Beatriz Rosas Guevara, Yetli Sillero Ros, Guillermo Emanuel Pedrosa, Susana Elizabeth Theuns, Tom Bignone, Lucas Axel |
author_role |
author |
author2 |
Rosas Guevara, Yetli Sillero Ros, Guillermo Emanuel Pedrosa, Susana Elizabeth Theuns, Tom Bignone, Lucas Axel |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
DARK MATTER GALAXIES: ABUNDANCES GALAXIES: EVOLUTION |
topic |
DARK MATTER GALAXIES: ABUNDANCES GALAXIES: EVOLUTION |
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 analyse the evolution of the oxygen abundance gradient of star-forming galaxies with stellar mass M*≥10 9 M ⊙in the EAGLE simulation o v er the redshift range z = [0, 2.5]. We find that the median metallicity gradient of the simulated galaxies is close to zero at all z, whereas the scatter around the median increases with z. The metallicity gradients of individual galaxies can evolve from strong to weak and vice versa, since mostly low-metallicity gas accretes on to the galaxy, resulting in enhanced star formation and ejection of metal-enriched gas by energy feedback. Such episodes of enhanced accretion, mainly dominated by major mergers, are more common at higher z and hence contribute to increasing the diversity of gradients. For galaxies with ne gativ e metallicity gradients, we find a redshift evolution of ∼-0 . 03 de x kpc -1 /δz. A positiv e mass dependence is found at z ≤0.5, which becomes slightly stronger for higher redshifts and, mainly, for M*< 10 9 . 5 M ⊙. Only galaxies with ne gativ e metallicity gradients define a correlation with galaxy size, consistent with an inside-out formation scenario. Our findings suggest that major mergers and/or significant gas accretion can drive strong ne gativ e or positiv e metallicity gradients. The first ones are preferentially associated with disc-dominated galaxies, and the second ones with dispersion-dominated systems. The comparison with forthcoming observations at high redshift will allow a better understanding of the potential role of metallicity gradients as a chemical probe of galaxy formation. Fil: Tissera, Patricia Beatriz. Pontificia Universidad Católica de Chile; Chile. 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: Rosas Guevara, Yetli. Donostia International Physic Center (dipc); Fil: Sillero Ros, Guillermo Emanuel. 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: Pedrosa, Susana Elizabeth. 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: Theuns, Tom. University Of Durham. Dep.of Physics; Reino Unido 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 |
description |
We analyse the evolution of the oxygen abundance gradient of star-forming galaxies with stellar mass M*≥10 9 M ⊙in the EAGLE simulation o v er the redshift range z = [0, 2.5]. We find that the median metallicity gradient of the simulated galaxies is close to zero at all z, whereas the scatter around the median increases with z. The metallicity gradients of individual galaxies can evolve from strong to weak and vice versa, since mostly low-metallicity gas accretes on to the galaxy, resulting in enhanced star formation and ejection of metal-enriched gas by energy feedback. Such episodes of enhanced accretion, mainly dominated by major mergers, are more common at higher z and hence contribute to increasing the diversity of gradients. For galaxies with ne gativ e metallicity gradients, we find a redshift evolution of ∼-0 . 03 de x kpc -1 /δz. A positiv e mass dependence is found at z ≤0.5, which becomes slightly stronger for higher redshifts and, mainly, for M*< 10 9 . 5 M ⊙. Only galaxies with ne gativ e metallicity gradients define a correlation with galaxy size, consistent with an inside-out formation scenario. Our findings suggest that major mergers and/or significant gas accretion can drive strong ne gativ e or positiv e metallicity gradients. The first ones are preferentially associated with disc-dominated galaxies, and the second ones with dispersion-dominated systems. The comparison with forthcoming observations at high redshift will allow a better understanding of the potential role of metallicity gradients as a chemical probe of galaxy formation. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12 |
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/11336/181510 Tissera, Patricia Beatriz; Rosas Guevara, Yetli; Sillero Ros, Guillermo Emanuel; Pedrosa, Susana Elizabeth; Theuns, Tom; et al.; The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 511; 2; 12-2021; 1667-1684 0035-8711 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/181510 |
identifier_str_mv |
Tissera, Patricia Beatriz; Rosas Guevara, Yetli; Sillero Ros, Guillermo Emanuel; Pedrosa, Susana Elizabeth; Theuns, Tom; et al.; The evolution of the oxygen abundance gradients in star-forming galaxies in the EAGLE simulations; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 511; 2; 12-2021; 1667-1684 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/url/https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stab3644/6472260 info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab3644 |
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 |
Oxford University Press |
publisher.none.fl_str_mv |
Oxford University Press |
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_ |
1844613275255308288 |
score |
13.070432 |