Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradients

Autores
Rosa, D. A.; Dors Jr., O. L.; Krabbe, A. C.; Hägele, Guillermo Federico; Cardaci, Monica Viviana; Pastoriza, M. G.; Rodrigues, I.; Winge, C.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this paper, we derive oxygen abundance gradients from HII regions located in 11 galaxies in eight systems of close pairs. Long-slit spectra in the range 4400?7300 Å were obtained with the Gemini Multi-Object Spectrograph at Gemini South (GMOS-S). Spatial profiles of oxygen abundance in the gaseous phase along galaxy discs were obtained using calibrations based on strong emission lines (N2 and O3N2).We found oxygen gradients to be significantly flatter for all the studied galaxies than those in typical isolated spiral galaxies. Four objects in our sample, AM 1219A, AM 1256B, AM 2030A and AM 2030B, show a clear break in the oxygen abundance at galactocentric radius R/R25 between 0.2 and 0.5. For AM 1219A and AM 1256B, we found negative slopes for the inner gradients, and for AM 2030B, we found a positive slope. All three cases show a flatter behaviour to the outskirts of the galaxies. For AM 2030A, we found a positive slope for the outer gradient, while the inner gradient is almost compatible with a flat behaviour. We found a decrease of star formation efficiency in the zone that corresponds to the oxygen abundance gradient break for AM 1219A and AM 2030B. For the former, a minimum in the estimated metallicities was found very close to the break zone, which could be associated with a corotation radius. However, AM 1256B and AM 2030A, present a star formation rate maximum but not an extreme oxygen abundance value. All four interacting systems that show oxygen gradient breaks have extreme SFR values located very close to break zones.The HII regions located in close pairs of galaxies follow the same relation between the ionization parameter and the oxygen abundance as those regions in isolated galaxies.
Fil: Rosa, D. A.. Universidade Do Vale Do Paraiba; Brasil
Fil: Dors Jr., O. L.. Universidade Do Vale Do Paraiba; Brasil
Fil: Krabbe, A. C.. Universidade Do Vale Do Paraiba; Brasil
Fil: Hägele, Guillermo Federico. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina
Fil: Cardaci, Monica Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Pastoriza, M. G.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Rodrigues, I.. Universidade Do Vale Do Paraiba; Brasil
Fil: Winge, C.. Gemini Observatory; Chile
Materia
Imaging Spectroscopy
Interstellar Abundances
Interstellar Medium
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:11336/10918
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/10918
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradientsRosa, D. A.Dors Jr., O. L.Krabbe, A. C.Hägele, Guillermo FedericoCardaci, Monica VivianaPastoriza, M. G.Rodrigues, I.Winge, C.Imaging SpectroscopyInterstellar AbundancesInterstellar Mediumhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this paper, we derive oxygen abundance gradients from HII regions located in 11 galaxies in eight systems of close pairs. Long-slit spectra in the range 4400?7300 Å were obtained with the Gemini Multi-Object Spectrograph at Gemini South (GMOS-S). Spatial profiles of oxygen abundance in the gaseous phase along galaxy discs were obtained using calibrations based on strong emission lines (N2 and O3N2).We found oxygen gradients to be significantly flatter for all the studied galaxies than those in typical isolated spiral galaxies. Four objects in our sample, AM 1219A, AM 1256B, AM 2030A and AM 2030B, show a clear break in the oxygen abundance at galactocentric radius R/R25 between 0.2 and 0.5. For AM 1219A and AM 1256B, we found negative slopes for the inner gradients, and for AM 2030B, we found a positive slope. All three cases show a flatter behaviour to the outskirts of the galaxies. For AM 2030A, we found a positive slope for the outer gradient, while the inner gradient is almost compatible with a flat behaviour. We found a decrease of star formation efficiency in the zone that corresponds to the oxygen abundance gradient break for AM 1219A and AM 2030B. For the former, a minimum in the estimated metallicities was found very close to the break zone, which could be associated with a corotation radius. However, AM 1256B and AM 2030A, present a star formation rate maximum but not an extreme oxygen abundance value. All four interacting systems that show oxygen gradient breaks have extreme SFR values located very close to break zones.The HII regions located in close pairs of galaxies follow the same relation between the ionization parameter and the oxygen abundance as those regions in isolated galaxies.Fil: Rosa, D. A.. Universidade Do Vale Do Paraiba; BrasilFil: Dors Jr., O. L.. Universidade Do Vale Do Paraiba; BrasilFil: Krabbe, A. C.. Universidade Do Vale Do Paraiba; BrasilFil: Hägele, Guillermo Federico. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; ArgentinaFil: Cardaci, Monica Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Pastoriza, M. G.. Universidade Federal do Rio Grande do Sul; BrasilFil: Rodrigues, I.. Universidade Do Vale Do Paraiba; BrasilFil: Winge, C.. Gemini Observatory; ChileWiley2014-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/10918Rosa, D. A. ; Dors Jr., O. L. ; Krabbe, A. C. ; Hägele, Guillermo Federico; Cardaci, Monica Viviana; et al.; Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradients; Wiley; Monthly Notices Of The Royal Astronomical Society; 444; 3; 9-2014; 2005-20210035-8711enginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stu1578info:eu-repo/semantics/altIdentifier/url/http://mnras.oxfordjournals.org/content/444/3/2005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:31:02Zoai:ri.conicet.gov.ar:11336/10918instacron: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 10:31:02.998CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradients
title Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradients
spellingShingle Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradients
Rosa, D. A.
Imaging Spectroscopy
Interstellar Abundances
Interstellar Medium
title_short Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradients
title_full Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradients
title_fullStr Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradients
title_full_unstemmed Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradients
title_sort Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradients
dc.creator.none.fl_str_mv Rosa, D. A.
Dors Jr., O. L.
Krabbe, A. C.
Hägele, Guillermo Federico
Cardaci, Monica Viviana
Pastoriza, M. G.
Rodrigues, I.
Winge, C.
author Rosa, D. A.
author_facet Rosa, D. A.
Dors Jr., O. L.
Krabbe, A. C.
Hägele, Guillermo Federico
Cardaci, Monica Viviana
Pastoriza, M. G.
Rodrigues, I.
Winge, C.
author_role author
author2 Dors Jr., O. L.
Krabbe, A. C.
Hägele, Guillermo Federico
Cardaci, Monica Viviana
Pastoriza, M. G.
Rodrigues, I.
Winge, C.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Imaging Spectroscopy
Interstellar Abundances
Interstellar Medium
topic Imaging Spectroscopy
Interstellar Abundances
Interstellar Medium
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this paper, we derive oxygen abundance gradients from HII regions located in 11 galaxies in eight systems of close pairs. Long-slit spectra in the range 4400?7300 Å were obtained with the Gemini Multi-Object Spectrograph at Gemini South (GMOS-S). Spatial profiles of oxygen abundance in the gaseous phase along galaxy discs were obtained using calibrations based on strong emission lines (N2 and O3N2).We found oxygen gradients to be significantly flatter for all the studied galaxies than those in typical isolated spiral galaxies. Four objects in our sample, AM 1219A, AM 1256B, AM 2030A and AM 2030B, show a clear break in the oxygen abundance at galactocentric radius R/R25 between 0.2 and 0.5. For AM 1219A and AM 1256B, we found negative slopes for the inner gradients, and for AM 2030B, we found a positive slope. All three cases show a flatter behaviour to the outskirts of the galaxies. For AM 2030A, we found a positive slope for the outer gradient, while the inner gradient is almost compatible with a flat behaviour. We found a decrease of star formation efficiency in the zone that corresponds to the oxygen abundance gradient break for AM 1219A and AM 2030B. For the former, a minimum in the estimated metallicities was found very close to the break zone, which could be associated with a corotation radius. However, AM 1256B and AM 2030A, present a star formation rate maximum but not an extreme oxygen abundance value. All four interacting systems that show oxygen gradient breaks have extreme SFR values located very close to break zones.The HII regions located in close pairs of galaxies follow the same relation between the ionization parameter and the oxygen abundance as those regions in isolated galaxies.
Fil: Rosa, D. A.. Universidade Do Vale Do Paraiba; Brasil
Fil: Dors Jr., O. L.. Universidade Do Vale Do Paraiba; Brasil
Fil: Krabbe, A. C.. Universidade Do Vale Do Paraiba; Brasil
Fil: Hägele, Guillermo Federico. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina
Fil: Cardaci, Monica Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Pastoriza, M. G.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Rodrigues, I.. Universidade Do Vale Do Paraiba; Brasil
Fil: Winge, C.. Gemini Observatory; Chile
description In this paper, we derive oxygen abundance gradients from HII regions located in 11 galaxies in eight systems of close pairs. Long-slit spectra in the range 4400?7300 Å were obtained with the Gemini Multi-Object Spectrograph at Gemini South (GMOS-S). Spatial profiles of oxygen abundance in the gaseous phase along galaxy discs were obtained using calibrations based on strong emission lines (N2 and O3N2).We found oxygen gradients to be significantly flatter for all the studied galaxies than those in typical isolated spiral galaxies. Four objects in our sample, AM 1219A, AM 1256B, AM 2030A and AM 2030B, show a clear break in the oxygen abundance at galactocentric radius R/R25 between 0.2 and 0.5. For AM 1219A and AM 1256B, we found negative slopes for the inner gradients, and for AM 2030B, we found a positive slope. All three cases show a flatter behaviour to the outskirts of the galaxies. For AM 2030A, we found a positive slope for the outer gradient, while the inner gradient is almost compatible with a flat behaviour. We found a decrease of star formation efficiency in the zone that corresponds to the oxygen abundance gradient break for AM 1219A and AM 2030B. For the former, a minimum in the estimated metallicities was found very close to the break zone, which could be associated with a corotation radius. However, AM 1256B and AM 2030A, present a star formation rate maximum but not an extreme oxygen abundance value. All four interacting systems that show oxygen gradient breaks have extreme SFR values located very close to break zones.The HII regions located in close pairs of galaxies follow the same relation between the ionization parameter and the oxygen abundance as those regions in isolated galaxies.
publishDate 2014
dc.date.none.fl_str_mv 2014-09
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/11336/10918
Rosa, D. A. ; Dors Jr., O. L. ; Krabbe, A. C. ; Hägele, Guillermo Federico; Cardaci, Monica Viviana; et al.; Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradients; Wiley; Monthly Notices Of The Royal Astronomical Society; 444; 3; 9-2014; 2005-2021
0035-8711
url http://hdl.handle.net/11336/10918
identifier_str_mv Rosa, D. A. ; Dors Jr., O. L. ; Krabbe, A. C. ; Hägele, Guillermo Federico; Cardaci, Monica Viviana; et al.; Interaction effects on galaxy pairs with Gemini/GMOS - II: oxygen abundance gradients; Wiley; Monthly Notices Of The Royal Astronomical Society; 444; 3; 9-2014; 2005-2021
0035-8711
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stu1578
info:eu-repo/semantics/altIdentifier/url/http://mnras.oxfordjournals.org/content/444/3/2005
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
publisher.none.fl_str_mv Wiley
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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