Integral field spectroscopy of HII region complexes: the outer disc of NGC6946

Autores
García Benito, Rubén; Díaz, A.; Hägele, Guillermo Federico; Pérez Montero, E.; López, Jesús; Vílchez, J. M.; Pérez, Enrique; Terlevich, Elena; Terlevich, Roberto; Rosa González, Daniel
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Integral field spectroscopy obtained with the Potsdam Multi-Aperture Spectrophotometer Fiber Package (PPak) and the 3.5-m telescope at the Calar Alto Observatory has been used to study an outer H II region complex in the well-studied galaxy NGC 6946. This technique provides detailed maps of the region in different emission lines, yielding spatially resolved information about the physical properties of the gas. The configuration was chosen to cover the whole spectrum from 3600 up to 10 000 Å, allowing the measurement of the near-infrared [S III] lines. We selected four luminous knots to perform a detailed integrated spectroscopic analysis of these structures and of the whole PPak field of view (FOV). For all the knots the electron density has been found to be very similar and below 100 cm−3. The [O III] electron temperature was measured in knots A, B, C and in the integrated PPak field, and was found to be around 8000 K. The temperatures of [O II] and [S III] were estimated in the four cases. The elemental abundances computed from the ‘direct method’ are typical of high-metallicity disc H II regions, with a mean value of 12+log(O/H) = 8.65, comparable to what has been found in this galaxy by other authors for regions at similar galactocentric distance. Therefore a remarkable abundance uniformity is found despite the different excitations found throughout the nebula. However, due to the quality of the data, the electron temperatures and metallicities obtained have associated errors comparable to the typical dispersion found in empirical calibrations.
Fil: García Benito, Rubén. Peking University. Kavli Institute of Astronomy and Astrophysics; China
Fil: Díaz, A.. Universidad Autónoma de Madrid. Departamento de Física Teorica; España
Fil: Hägele, Guillermo Federico. 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: Pérez Montero, E.. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
Fil: López, Jesús . INAOE; México
Fil: Vílchez, J. M.. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
Fil: Pérez, Enrique. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
Fil: Terlevich, Elena . INAOE; México
Fil: Terlevich, Roberto . INAOE; México
Fil: Rosa González, Daniel. INAOE; México
Materia
Abundances (ISM)
HII regions
Interstellar medium
Spectroscopic techniques
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:11336/9845
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/9845
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Integral field spectroscopy of HII region complexes: the outer disc of NGC6946García Benito, RubénDíaz, A.Hägele, Guillermo FedericoPérez Montero, E.López, Jesús Vílchez, J. M.Pérez, EnriqueTerlevich, Elena Terlevich, Roberto Rosa González, DanielAbundances (ISM)HII regionsInterstellar mediumSpectroscopic techniqueshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Integral field spectroscopy obtained with the Potsdam Multi-Aperture Spectrophotometer Fiber Package (PPak) and the 3.5-m telescope at the Calar Alto Observatory has been used to study an outer H II region complex in the well-studied galaxy NGC 6946. This technique provides detailed maps of the region in different emission lines, yielding spatially resolved information about the physical properties of the gas. The configuration was chosen to cover the whole spectrum from 3600 up to 10 000 Å, allowing the measurement of the near-infrared [S III] lines. We selected four luminous knots to perform a detailed integrated spectroscopic analysis of these structures and of the whole PPak field of view (FOV). For all the knots the electron density has been found to be very similar and below 100 cm−3. The [O III] electron temperature was measured in knots A, B, C and in the integrated PPak field, and was found to be around 8000 K. The temperatures of [O II] and [S III] were estimated in the four cases. The elemental abundances computed from the ‘direct method’ are typical of high-metallicity disc H II regions, with a mean value of 12+log(O/H) = 8.65, comparable to what has been found in this galaxy by other authors for regions at similar galactocentric distance. Therefore a remarkable abundance uniformity is found despite the different excitations found throughout the nebula. However, due to the quality of the data, the electron temperatures and metallicities obtained have associated errors comparable to the typical dispersion found in empirical calibrations.Fil: García Benito, Rubén. Peking University. Kavli Institute of Astronomy and Astrophysics; ChinaFil: Díaz, A.. Universidad Autónoma de Madrid. Departamento de Física Teorica; EspañaFil: Hägele, Guillermo Federico. 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: Pérez Montero, E.. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; EspañaFil: López, Jesús . INAOE; MéxicoFil: Vílchez, J. M.. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; EspañaFil: Pérez, Enrique. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; EspañaFil: Terlevich, Elena . INAOE; MéxicoFil: Terlevich, Roberto . INAOE; MéxicoFil: Rosa González, Daniel. INAOE; MéxicoOxford University Press2010-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/9845García Benito, Rubén; Díaz, A.; Hägele, Guillermo Federico; Pérez Montero, E.; López, Jesús ; et al.; Integral field spectroscopy of HII region complexes: the outer disc of NGC6946; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 408; 4; 11-2010; 2234-22550035-8711enginfo:eu-repo/semantics/altIdentifier/url/http://mnras.oxfordjournals.org/content/408/4/2234info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2010.17269.xinfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2010.17269.x/fullinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:32:37Zoai:ri.conicet.gov.ar:11336/9845instacron: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 09:32:37.543CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Integral field spectroscopy of HII region complexes: the outer disc of NGC6946
title Integral field spectroscopy of HII region complexes: the outer disc of NGC6946
spellingShingle Integral field spectroscopy of HII region complexes: the outer disc of NGC6946
García Benito, Rubén
Abundances (ISM)
HII regions
Interstellar medium
Spectroscopic techniques
title_short Integral field spectroscopy of HII region complexes: the outer disc of NGC6946
title_full Integral field spectroscopy of HII region complexes: the outer disc of NGC6946
title_fullStr Integral field spectroscopy of HII region complexes: the outer disc of NGC6946
title_full_unstemmed Integral field spectroscopy of HII region complexes: the outer disc of NGC6946
title_sort Integral field spectroscopy of HII region complexes: the outer disc of NGC6946
dc.creator.none.fl_str_mv García Benito, Rubén
Díaz, A.
Hägele, Guillermo Federico
Pérez Montero, E.
López, Jesús
Vílchez, J. M.
Pérez, Enrique
Terlevich, Elena
Terlevich, Roberto
Rosa González, Daniel
author García Benito, Rubén
author_facet García Benito, Rubén
Díaz, A.
Hägele, Guillermo Federico
Pérez Montero, E.
López, Jesús
Vílchez, J. M.
Pérez, Enrique
Terlevich, Elena
Terlevich, Roberto
Rosa González, Daniel
author_role author
author2 Díaz, A.
Hägele, Guillermo Federico
Pérez Montero, E.
López, Jesús
Vílchez, J. M.
Pérez, Enrique
Terlevich, Elena
Terlevich, Roberto
Rosa González, Daniel
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Abundances (ISM)
HII regions
Interstellar medium
Spectroscopic techniques
topic Abundances (ISM)
HII regions
Interstellar medium
Spectroscopic techniques
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Integral field spectroscopy obtained with the Potsdam Multi-Aperture Spectrophotometer Fiber Package (PPak) and the 3.5-m telescope at the Calar Alto Observatory has been used to study an outer H II region complex in the well-studied galaxy NGC 6946. This technique provides detailed maps of the region in different emission lines, yielding spatially resolved information about the physical properties of the gas. The configuration was chosen to cover the whole spectrum from 3600 up to 10 000 Å, allowing the measurement of the near-infrared [S III] lines. We selected four luminous knots to perform a detailed integrated spectroscopic analysis of these structures and of the whole PPak field of view (FOV). For all the knots the electron density has been found to be very similar and below 100 cm−3. The [O III] electron temperature was measured in knots A, B, C and in the integrated PPak field, and was found to be around 8000 K. The temperatures of [O II] and [S III] were estimated in the four cases. The elemental abundances computed from the ‘direct method’ are typical of high-metallicity disc H II regions, with a mean value of 12+log(O/H) = 8.65, comparable to what has been found in this galaxy by other authors for regions at similar galactocentric distance. Therefore a remarkable abundance uniformity is found despite the different excitations found throughout the nebula. However, due to the quality of the data, the electron temperatures and metallicities obtained have associated errors comparable to the typical dispersion found in empirical calibrations.
Fil: García Benito, Rubén. Peking University. Kavli Institute of Astronomy and Astrophysics; China
Fil: Díaz, A.. Universidad Autónoma de Madrid. Departamento de Física Teorica; España
Fil: Hägele, Guillermo Federico. 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: Pérez Montero, E.. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
Fil: López, Jesús . INAOE; México
Fil: Vílchez, J. M.. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
Fil: Pérez, Enrique. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
Fil: Terlevich, Elena . INAOE; México
Fil: Terlevich, Roberto . INAOE; México
Fil: Rosa González, Daniel. INAOE; México
description Integral field spectroscopy obtained with the Potsdam Multi-Aperture Spectrophotometer Fiber Package (PPak) and the 3.5-m telescope at the Calar Alto Observatory has been used to study an outer H II region complex in the well-studied galaxy NGC 6946. This technique provides detailed maps of the region in different emission lines, yielding spatially resolved information about the physical properties of the gas. The configuration was chosen to cover the whole spectrum from 3600 up to 10 000 Å, allowing the measurement of the near-infrared [S III] lines. We selected four luminous knots to perform a detailed integrated spectroscopic analysis of these structures and of the whole PPak field of view (FOV). For all the knots the electron density has been found to be very similar and below 100 cm−3. The [O III] electron temperature was measured in knots A, B, C and in the integrated PPak field, and was found to be around 8000 K. The temperatures of [O II] and [S III] were estimated in the four cases. The elemental abundances computed from the ‘direct method’ are typical of high-metallicity disc H II regions, with a mean value of 12+log(O/H) = 8.65, comparable to what has been found in this galaxy by other authors for regions at similar galactocentric distance. Therefore a remarkable abundance uniformity is found despite the different excitations found throughout the nebula. However, due to the quality of the data, the electron temperatures and metallicities obtained have associated errors comparable to the typical dispersion found in empirical calibrations.
publishDate 2010
dc.date.none.fl_str_mv 2010-11
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/11336/9845
García Benito, Rubén; Díaz, A.; Hägele, Guillermo Federico; Pérez Montero, E.; López, Jesús ; et al.; Integral field spectroscopy of HII region complexes: the outer disc of NGC6946; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 408; 4; 11-2010; 2234-2255
0035-8711
url http://hdl.handle.net/11336/9845
identifier_str_mv García Benito, Rubén; Díaz, A.; Hägele, Guillermo Federico; Pérez Montero, E.; López, Jesús ; et al.; Integral field spectroscopy of HII region complexes: the outer disc of NGC6946; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 408; 4; 11-2010; 2234-2255
0035-8711
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://mnras.oxfordjournals.org/content/408/4/2234
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2010.17269.x
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2010.17269.x/full
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
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score 13.070432

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