High-resolution spectroscopy of the blue compact dwarf galaxy Haro 15 : I. Internal kinematics
- Autores
- Firpo, Verónica; Bosch, Guillermo Luis; Hägele, Guillermo Federico; Díaz, Ángeles I.; Morrell, Nidia Irene
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Using echelle spectroscopy, obtained at Las Campanas Observatory, we present a detailed study of the internal kinematics of the nebular material in multiple knots of the blue compact dwarf galaxy Haro15. A detailed analysis of the complex emission-line profiles shows the presence of an underlying broad component in almost all knots, and the brightest star-forming region shows unmistakable signs for the presence of two distinct narrow kinematical components. We also study the information that our analysis provides regarding the motion of the individual knots in the Haro15 galaxy potential, confirming that they follow galactic rotation. Finally, we examine the relation between their velocity dispersion and luminosity, finding that almost all knots follow the relation for virialized systems. This holds for the strong narrow components identified in complex fits and for single profile fits, although the latter show a flatter slope. In agreement with previous findings, in this paper we show that the existence of multiple kinematical components among massive starbursts cannot be overlooked, as it has a noticeable effect on any subsequent analysis that relies on basic parameters.
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Ciencias Astronómicas
Galaxies: individual: Haro15
Galaxies: starburst
Hii regions - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/84479
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High-resolution spectroscopy of the blue compact dwarf galaxy Haro 15 : I. Internal kinematicsFirpo, VerónicaBosch, Guillermo LuisHägele, Guillermo FedericoDíaz, Ángeles I.Morrell, Nidia IreneCiencias AstronómicasGalaxies: individual: Haro15Galaxies: starburstHii regionsUsing echelle spectroscopy, obtained at Las Campanas Observatory, we present a detailed study of the internal kinematics of the nebular material in multiple knots of the blue compact dwarf galaxy Haro15. A detailed analysis of the complex emission-line profiles shows the presence of an underlying broad component in almost all knots, and the brightest star-forming region shows unmistakable signs for the presence of two distinct narrow kinematical components. We also study the information that our analysis provides regarding the motion of the individual knots in the Haro15 galaxy potential, confirming that they follow galactic rotation. Finally, we examine the relation between their velocity dispersion and luminosity, finding that almost all knots follow the relation for virialized systems. This holds for the strong narrow components identified in complex fits and for single profile fits, although the latter show a flatter slope. In agreement with previous findings, in this paper we show that the existence of multiple kinematical components among massive starbursts cannot be overlooked, as it has a noticeable effect on any subsequent analysis that relies on basic parameters.Facultad de Ciencias Astronómicas y Geofísicas2011-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf3288-3297http://sedici.unlp.edu.ar/handle/10915/84479enginfo:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2011.18630.xinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:10Zoai:sedici.unlp.edu.ar:10915/84479Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:10.478SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
High-resolution spectroscopy of the blue compact dwarf galaxy Haro 15 : I. Internal kinematics |
title |
High-resolution spectroscopy of the blue compact dwarf galaxy Haro 15 : I. Internal kinematics |
spellingShingle |
High-resolution spectroscopy of the blue compact dwarf galaxy Haro 15 : I. Internal kinematics Firpo, Verónica Ciencias Astronómicas Galaxies: individual: Haro15 Galaxies: starburst Hii regions |
title_short |
High-resolution spectroscopy of the blue compact dwarf galaxy Haro 15 : I. Internal kinematics |
title_full |
High-resolution spectroscopy of the blue compact dwarf galaxy Haro 15 : I. Internal kinematics |
title_fullStr |
High-resolution spectroscopy of the blue compact dwarf galaxy Haro 15 : I. Internal kinematics |
title_full_unstemmed |
High-resolution spectroscopy of the blue compact dwarf galaxy Haro 15 : I. Internal kinematics |
title_sort |
High-resolution spectroscopy of the blue compact dwarf galaxy Haro 15 : I. Internal kinematics |
dc.creator.none.fl_str_mv |
Firpo, Verónica Bosch, Guillermo Luis Hägele, Guillermo Federico Díaz, Ángeles I. Morrell, Nidia Irene |
author |
Firpo, Verónica |
author_facet |
Firpo, Verónica Bosch, Guillermo Luis Hägele, Guillermo Federico Díaz, Ángeles I. Morrell, Nidia Irene |
author_role |
author |
author2 |
Bosch, Guillermo Luis Hägele, Guillermo Federico Díaz, Ángeles I. Morrell, Nidia Irene |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Ciencias Astronómicas Galaxies: individual: Haro15 Galaxies: starburst Hii regions |
topic |
Ciencias Astronómicas Galaxies: individual: Haro15 Galaxies: starburst Hii regions |
dc.description.none.fl_txt_mv |
Using echelle spectroscopy, obtained at Las Campanas Observatory, we present a detailed study of the internal kinematics of the nebular material in multiple knots of the blue compact dwarf galaxy Haro15. A detailed analysis of the complex emission-line profiles shows the presence of an underlying broad component in almost all knots, and the brightest star-forming region shows unmistakable signs for the presence of two distinct narrow kinematical components. We also study the information that our analysis provides regarding the motion of the individual knots in the Haro15 galaxy potential, confirming that they follow galactic rotation. Finally, we examine the relation between their velocity dispersion and luminosity, finding that almost all knots follow the relation for virialized systems. This holds for the strong narrow components identified in complex fits and for single profile fits, although the latter show a flatter slope. In agreement with previous findings, in this paper we show that the existence of multiple kinematical components among massive starbursts cannot be overlooked, as it has a noticeable effect on any subsequent analysis that relies on basic parameters. Facultad de Ciencias Astronómicas y Geofísicas |
description |
Using echelle spectroscopy, obtained at Las Campanas Observatory, we present a detailed study of the internal kinematics of the nebular material in multiple knots of the blue compact dwarf galaxy Haro15. A detailed analysis of the complex emission-line profiles shows the presence of an underlying broad component in almost all knots, and the brightest star-forming region shows unmistakable signs for the presence of two distinct narrow kinematical components. We also study the information that our analysis provides regarding the motion of the individual knots in the Haro15 galaxy potential, confirming that they follow galactic rotation. Finally, we examine the relation between their velocity dispersion and luminosity, finding that almost all knots follow the relation for virialized systems. This holds for the strong narrow components identified in complex fits and for single profile fits, although the latter show a flatter slope. In agreement with previous findings, in this paper we show that the existence of multiple kinematical components among massive starbursts cannot be overlooked, as it has a noticeable effect on any subsequent analysis that relies on basic parameters. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/84479 |
url |
http://sedici.unlp.edu.ar/handle/10915/84479 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0035-8711 info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2011.18630.x |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
dc.format.none.fl_str_mv |
application/pdf 3288-3297 |
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reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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