The H I supershell GS 118+01-44 and its role in the interstellar medium
- Autores
- Suad, Laura Andrea; Cichowolski, Silvina; Noriega Crespo, A.; Arnal, Edmundo Marcelo; Testori, Juan Carlos; Flagey, N.
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Aims. We carry out a multiwavelength study to characterize the H I supershell designated GS118+01-44, and to analyse its possible origin. Methods. A multiwavelength study has been carried out to study the supershell and its environs. We performed an analysis of the H I, CO, radio continuum, and infrared emission distributions. Results. The Canadian Galactic Plane Survey (CGPS) H I data reveals that GS118+01-44 is centred at (l,b) = (117°.7, 1°.4) with a systemic velocity of -44.3 km s-1. According to Galactic rotation models this structure is located at 3.0 ± 0.6 kpc from the Sun. There are several H II regions and three supernova remnants (SNRs) catalogued in the region. On the other hand, the analysis of the temperature spectral index distribution shows that in the region there is a predominance of non-thermal emission. Infrared emission shows that cool temperatures dominate the area of the supershell. Concerning the origin of the structure, we found that even though several OB stars belonging to CasOB5 are located in the interior of GS118+01-44, an analysis of the energy injected by these stars through their stellar winds indicates that they do not have sufficient energy to create GS118+01-44. Therefore, an additional energy source is needed to explain the genesis of GS118+01-44. On the other hand, the presence of several H II regions and young stellar object candidates in the edges of GS118+01-44 shows that the region is still active in forming new stars.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto Argentino de Radioastronomía - Materia
-
Ciencias Astronómicas
H II regions
ISM: bubbles
ISM: kinematics and dynamics
stars: formation - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/86588
Ver los metadatos del registro completo
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The H I supershell GS 118+01-44 and its role in the interstellar mediumSuad, Laura AndreaCichowolski, SilvinaNoriega Crespo, A.Arnal, Edmundo MarceloTestori, Juan CarlosFlagey, N.Ciencias AstronómicasH II regionsISM: bubblesISM: kinematics and dynamicsstars: formationAims. We carry out a multiwavelength study to characterize the H I supershell designated GS118+01-44, and to analyse its possible origin. Methods. A multiwavelength study has been carried out to study the supershell and its environs. We performed an analysis of the H I, CO, radio continuum, and infrared emission distributions. Results. The Canadian Galactic Plane Survey (CGPS) H I data reveals that GS118+01-44 is centred at (l,b) = (117°.7, 1°.4) with a systemic velocity of -44.3 km s<SUP>-1</SUP>. According to Galactic rotation models this structure is located at 3.0 ± 0.6 kpc from the Sun. There are several H II regions and three supernova remnants (SNRs) catalogued in the region. On the other hand, the analysis of the temperature spectral index distribution shows that in the region there is a predominance of non-thermal emission. Infrared emission shows that cool temperatures dominate the area of the supershell. Concerning the origin of the structure, we found that even though several OB stars belonging to CasOB5 are located in the interior of GS118+01-44, an analysis of the energy injected by these stars through their stellar winds indicates that they do not have sufficient energy to create GS118+01-44. Therefore, an additional energy source is needed to explain the genesis of GS118+01-44. On the other hand, the presence of several H II regions and young stellar object candidates in the edges of GS118+01-44 shows that the region is still active in forming new stars.Facultad de Ciencias Astronómicas y GeofísicasInstituto Argentino de Radioastronomía2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/86588enginfo:eu-repo/semantics/altIdentifier/issn/0004-6361info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201425409info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:50Zoai:sedici.unlp.edu.ar:10915/86588Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:50.613SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
The H I supershell GS 118+01-44 and its role in the interstellar medium |
| title |
The H I supershell GS 118+01-44 and its role in the interstellar medium |
| spellingShingle |
The H I supershell GS 118+01-44 and its role in the interstellar medium Suad, Laura Andrea Ciencias Astronómicas H II regions ISM: bubbles ISM: kinematics and dynamics stars: formation |
| title_short |
The H I supershell GS 118+01-44 and its role in the interstellar medium |
| title_full |
The H I supershell GS 118+01-44 and its role in the interstellar medium |
| title_fullStr |
The H I supershell GS 118+01-44 and its role in the interstellar medium |
| title_full_unstemmed |
The H I supershell GS 118+01-44 and its role in the interstellar medium |
| title_sort |
The H I supershell GS 118+01-44 and its role in the interstellar medium |
| dc.creator.none.fl_str_mv |
Suad, Laura Andrea Cichowolski, Silvina Noriega Crespo, A. Arnal, Edmundo Marcelo Testori, Juan Carlos Flagey, N. |
| author |
Suad, Laura Andrea |
| author_facet |
Suad, Laura Andrea Cichowolski, Silvina Noriega Crespo, A. Arnal, Edmundo Marcelo Testori, Juan Carlos Flagey, N. |
| author_role |
author |
| author2 |
Cichowolski, Silvina Noriega Crespo, A. Arnal, Edmundo Marcelo Testori, Juan Carlos Flagey, N. |
| author2_role |
author author author author author |
| dc.subject.none.fl_str_mv |
Ciencias Astronómicas H II regions ISM: bubbles ISM: kinematics and dynamics stars: formation |
| topic |
Ciencias Astronómicas H II regions ISM: bubbles ISM: kinematics and dynamics stars: formation |
| dc.description.none.fl_txt_mv |
Aims. We carry out a multiwavelength study to characterize the H I supershell designated GS118+01-44, and to analyse its possible origin. Methods. A multiwavelength study has been carried out to study the supershell and its environs. We performed an analysis of the H I, CO, radio continuum, and infrared emission distributions. Results. The Canadian Galactic Plane Survey (CGPS) H I data reveals that GS118+01-44 is centred at (l,b) = (117°.7, 1°.4) with a systemic velocity of -44.3 km s<SUP>-1</SUP>. According to Galactic rotation models this structure is located at 3.0 ± 0.6 kpc from the Sun. There are several H II regions and three supernova remnants (SNRs) catalogued in the region. On the other hand, the analysis of the temperature spectral index distribution shows that in the region there is a predominance of non-thermal emission. Infrared emission shows that cool temperatures dominate the area of the supershell. Concerning the origin of the structure, we found that even though several OB stars belonging to CasOB5 are located in the interior of GS118+01-44, an analysis of the energy injected by these stars through their stellar winds indicates that they do not have sufficient energy to create GS118+01-44. Therefore, an additional energy source is needed to explain the genesis of GS118+01-44. On the other hand, the presence of several H II regions and young stellar object candidates in the edges of GS118+01-44 shows that the region is still active in forming new stars. Facultad de Ciencias Astronómicas y Geofísicas Instituto Argentino de Radioastronomía |
| description |
Aims. We carry out a multiwavelength study to characterize the H I supershell designated GS118+01-44, and to analyse its possible origin. Methods. A multiwavelength study has been carried out to study the supershell and its environs. We performed an analysis of the H I, CO, radio continuum, and infrared emission distributions. Results. The Canadian Galactic Plane Survey (CGPS) H I data reveals that GS118+01-44 is centred at (l,b) = (117°.7, 1°.4) with a systemic velocity of -44.3 km s<SUP>-1</SUP>. According to Galactic rotation models this structure is located at 3.0 ± 0.6 kpc from the Sun. There are several H II regions and three supernova remnants (SNRs) catalogued in the region. On the other hand, the analysis of the temperature spectral index distribution shows that in the region there is a predominance of non-thermal emission. Infrared emission shows that cool temperatures dominate the area of the supershell. Concerning the origin of the structure, we found that even though several OB stars belonging to CasOB5 are located in the interior of GS118+01-44, an analysis of the energy injected by these stars through their stellar winds indicates that they do not have sufficient energy to create GS118+01-44. Therefore, an additional energy source is needed to explain the genesis of GS118+01-44. On the other hand, the presence of several H II regions and young stellar object candidates in the edges of GS118+01-44 shows that the region is still active in forming new stars. |
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2016 |
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2016 |
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