Giant HII regions in NGC7479 and NGC6070

Autores
Firpo, Verónica; Bosch, Guillermo Luis; Hägele, G. F.; Morrell, Nidia Irene
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present new results from our search for Giant H ii Regions in galaxies visible from the southern hemisphere. In this work we study two galaxies: NGC 7479 and NGC 6070. Using high-resolution spectra, obtained with different instruments at Las Campanas Observatory, we are able to resolve the emission-line profile widths and determine the intrinsic velocity dispersion of the ionised gas. We detect profile widths corresponding to supersonic velocity dispersions in the six observed H ii regions. We find that all of them show at least two distinct kinematical components: a relatively narrow feature (between 11 and 22 km s−1 ) and a broader (between 31 and 77 km s−1 ) component. Two of the regions show a complex narrow profile in all ion lines, which can be further split into two components with different radial velocities. Whereas the wing broadening of the overall profile can be fitted with a low intensity broad component for almost all profiles, in one region it was better reproduced by two separate shell-like wings. We have analysed the impact that the presence of multiple components has on the location of the Hii regions in the log(L) − log(σ) plane. Although the overall distribution confirms the presence of a regression, the precise location of the regions in the plane is strongly dependent on the components derived from the profile fitting.
Fil: Firpo, Verónica. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Bosch, Guillermo Luis. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Hägele, G. F.. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Universidad Autónoma de Madrid; España
Fil: Morrell, Nidia Irene. Carnegie Observatories. Las Campanas Observatory; Chile
Materia
HII regions
NGC 7479 (galaxia)
NGC 6070 (galaxia)
Starsbursts
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:11336/9403
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/9403
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Giant HII regions in NGC7479 and NGC6070Firpo, VerónicaBosch, Guillermo LuisHägele, G. F.Morrell, Nidia IreneHII regionsNGC 7479 (galaxia)NGC 6070 (galaxia)Starsburstshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present new results from our search for Giant H ii Regions in galaxies visible from the southern hemisphere. In this work we study two galaxies: NGC 7479 and NGC 6070. Using high-resolution spectra, obtained with different instruments at Las Campanas Observatory, we are able to resolve the emission-line profile widths and determine the intrinsic velocity dispersion of the ionised gas. We detect profile widths corresponding to supersonic velocity dispersions in the six observed H ii regions. We find that all of them show at least two distinct kinematical components: a relatively narrow feature (between 11 and 22 km s−1 ) and a broader (between 31 and 77 km s−1 ) component. Two of the regions show a complex narrow profile in all ion lines, which can be further split into two components with different radial velocities. Whereas the wing broadening of the overall profile can be fitted with a low intensity broad component for almost all profiles, in one region it was better reproduced by two separate shell-like wings. We have analysed the impact that the presence of multiple components has on the location of the Hii regions in the log(L) − log(σ) plane. Although the overall distribution confirms the presence of a regression, the precise location of the regions in the plane is strongly dependent on the components derived from the profile fitting.Fil: Firpo, Verónica. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Bosch, Guillermo Luis. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Hägele, G. F.. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Universidad Autónoma de Madrid; EspañaFil: Morrell, Nidia Irene. Carnegie Observatories. Las Campanas Observatory; ChileOxford University Press2010-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/9403Firpo, Verónica; Bosch, Guillermo Luis; Hägele, G. F.; Morrell, Nidia Irene; Giant HII regions in NGC7479 and NGC6070; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 406; 2; 8-2010; 1094-11070035-8711enginfo:eu-repo/semantics/altIdentifier/url/http://mnras.oxfordjournals.org/content/406/2/1094info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2010.16738.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:42:04Zoai:ri.conicet.gov.ar:11336/9403instacron: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:34982025-10-22 11:42:04.405CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Giant HII regions in NGC7479 and NGC6070
title Giant HII regions in NGC7479 and NGC6070
spellingShingle Giant HII regions in NGC7479 and NGC6070
Firpo, Verónica
HII regions
NGC 7479 (galaxia)
NGC 6070 (galaxia)
Starsbursts
title_short Giant HII regions in NGC7479 and NGC6070
title_full Giant HII regions in NGC7479 and NGC6070
title_fullStr Giant HII regions in NGC7479 and NGC6070
title_full_unstemmed Giant HII regions in NGC7479 and NGC6070
title_sort Giant HII regions in NGC7479 and NGC6070
dc.creator.none.fl_str_mv Firpo, Verónica
Bosch, Guillermo Luis
Hägele, G. F.
Morrell, Nidia Irene
author Firpo, Verónica
author_facet Firpo, Verónica
Bosch, Guillermo Luis
Hägele, G. F.
Morrell, Nidia Irene
author_role author
author2 Bosch, Guillermo Luis
Hägele, G. F.
Morrell, Nidia Irene
author2_role author
author
author
dc.subject.none.fl_str_mv HII regions
NGC 7479 (galaxia)
NGC 6070 (galaxia)
Starsbursts
topic HII regions
NGC 7479 (galaxia)
NGC 6070 (galaxia)
Starsbursts
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 present new results from our search for Giant H ii Regions in galaxies visible from the southern hemisphere. In this work we study two galaxies: NGC 7479 and NGC 6070. Using high-resolution spectra, obtained with different instruments at Las Campanas Observatory, we are able to resolve the emission-line profile widths and determine the intrinsic velocity dispersion of the ionised gas. We detect profile widths corresponding to supersonic velocity dispersions in the six observed H ii regions. We find that all of them show at least two distinct kinematical components: a relatively narrow feature (between 11 and 22 km s−1 ) and a broader (between 31 and 77 km s−1 ) component. Two of the regions show a complex narrow profile in all ion lines, which can be further split into two components with different radial velocities. Whereas the wing broadening of the overall profile can be fitted with a low intensity broad component for almost all profiles, in one region it was better reproduced by two separate shell-like wings. We have analysed the impact that the presence of multiple components has on the location of the Hii regions in the log(L) − log(σ) plane. Although the overall distribution confirms the presence of a regression, the precise location of the regions in the plane is strongly dependent on the components derived from the profile fitting.
Fil: Firpo, Verónica. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Bosch, Guillermo Luis. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Hägele, G. F.. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Universidad Autónoma de Madrid; España
Fil: Morrell, Nidia Irene. Carnegie Observatories. Las Campanas Observatory; Chile
description We present new results from our search for Giant H ii Regions in galaxies visible from the southern hemisphere. In this work we study two galaxies: NGC 7479 and NGC 6070. Using high-resolution spectra, obtained with different instruments at Las Campanas Observatory, we are able to resolve the emission-line profile widths and determine the intrinsic velocity dispersion of the ionised gas. We detect profile widths corresponding to supersonic velocity dispersions in the six observed H ii regions. We find that all of them show at least two distinct kinematical components: a relatively narrow feature (between 11 and 22 km s−1 ) and a broader (between 31 and 77 km s−1 ) component. Two of the regions show a complex narrow profile in all ion lines, which can be further split into two components with different radial velocities. Whereas the wing broadening of the overall profile can be fitted with a low intensity broad component for almost all profiles, in one region it was better reproduced by two separate shell-like wings. We have analysed the impact that the presence of multiple components has on the location of the Hii regions in the log(L) − log(σ) plane. Although the overall distribution confirms the presence of a regression, the precise location of the regions in the plane is strongly dependent on the components derived from the profile fitting.
publishDate 2010
dc.date.none.fl_str_mv 2010-08
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/11336/9403
Firpo, Verónica; Bosch, Guillermo Luis; Hägele, G. F.; Morrell, Nidia Irene; Giant HII regions in NGC7479 and NGC6070; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 406; 2; 8-2010; 1094-1107
0035-8711
url http://hdl.handle.net/11336/9403
identifier_str_mv Firpo, Verónica; Bosch, Guillermo Luis; Hägele, G. F.; Morrell, Nidia Irene; Giant HII regions in NGC7479 and NGC6070; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 406; 2; 8-2010; 1094-1107
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/406/2/1094
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2010.16738.x
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
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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