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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/9403
Ver los metadatos del registro completo
id |
CONICETDig_ff59770997eb7fe14868527f4485415f |
---|---|
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 Técnicas2025-09-29T10:12:08Zoai: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:34982025-09-29 10:12:08.881CONICET 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 |
_version_ |
1844614025824960512 |
score |
13.070432 |