Searching for evidence of interaction between the of star HD 229196 and the interstellar medium
- Autores
- Pineault, Serge; Arnal, Edmundo Marcelo; Cappa, Cristina Elisabet; Cichowolski, Silvina; Normandeau, M.; St-Louis, N.
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Massive stars with strong stellar winds are expected to have a huge impact on their interstellar surroundings, an effect which, in a surprisingly large number of cases, is not observed. This work is part of a concerted effort to obtain a better and more homogeneous observational data base with which to test the predictions of theoretical models. Analysis of the interstellar medium around the Of star HD 229196 shows that it coincides (in projection) with a region of lower radio continuum emission. This suggests that the star has shaped the surrounding interstellar medium via its ionizing flux and stellar wind. However, we find no clear evidence of the star's action in atomic hydrogen images. The radio continuum morphology and absence of a clear expanding H i shell are consistent with the possibility that the star, which is travelling supersonically at ∼30 km s-1 with respect to its local interstellar medium, is creating a weak bow shock. We cannot however rule out the possibility that the observed asymmetry is due to an inhomogeneous interstellar density distribution. We use data from the Canadian Galactic Plane Survey to carry out this study.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto Argentino de Radioastronomía - Materia
-
Ciencias Astronómicas
ISM: bubbles
ISM: structure
Stars: individual: HD 229196
Stars: mass-loss
Stars: winds, outflows - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/84284
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Searching for evidence of interaction between the of star HD 229196 and the interstellar mediumPineault, SergeArnal, Edmundo MarceloCappa, Cristina ElisabetCichowolski, SilvinaNormandeau, M.St-Louis, N.Ciencias AstronómicasISM: bubblesISM: structureStars: individual: HD 229196Stars: mass-lossStars: winds, outflowsMassive stars with strong stellar winds are expected to have a huge impact on their interstellar surroundings, an effect which, in a surprisingly large number of cases, is not observed. This work is part of a concerted effort to obtain a better and more homogeneous observational data base with which to test the predictions of theoretical models. Analysis of the interstellar medium around the Of star HD 229196 shows that it coincides (in projection) with a region of lower radio continuum emission. This suggests that the star has shaped the surrounding interstellar medium via its ionizing flux and stellar wind. However, we find no clear evidence of the star's action in atomic hydrogen images. The radio continuum morphology and absence of a clear expanding H i shell are consistent with the possibility that the star, which is travelling supersonically at ∼30 km s<SUP>-1</SUP> with respect to its local interstellar medium, is creating a weak bow shock. We cannot however rule out the possibility that the observed asymmetry is due to an inhomogeneous interstellar density distribution. We use data from the Canadian Galactic Plane Survey to carry out this study.Facultad de Ciencias Astronómicas y GeofísicasInstituto Argentino de Radioastronomía2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1739-1749http://sedici.unlp.edu.ar/handle/10915/84284enginfo:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2008.13164.xinfo: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:UNLP2025-09-29T11:16:14Zoai:sedici.unlp.edu.ar:10915/84284Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:15.161SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Searching for evidence of interaction between the of star HD 229196 and the interstellar medium |
title |
Searching for evidence of interaction between the of star HD 229196 and the interstellar medium |
spellingShingle |
Searching for evidence of interaction between the of star HD 229196 and the interstellar medium Pineault, Serge Ciencias Astronómicas ISM: bubbles ISM: structure Stars: individual: HD 229196 Stars: mass-loss Stars: winds, outflows |
title_short |
Searching for evidence of interaction between the of star HD 229196 and the interstellar medium |
title_full |
Searching for evidence of interaction between the of star HD 229196 and the interstellar medium |
title_fullStr |
Searching for evidence of interaction between the of star HD 229196 and the interstellar medium |
title_full_unstemmed |
Searching for evidence of interaction between the of star HD 229196 and the interstellar medium |
title_sort |
Searching for evidence of interaction between the of star HD 229196 and the interstellar medium |
dc.creator.none.fl_str_mv |
Pineault, Serge Arnal, Edmundo Marcelo Cappa, Cristina Elisabet Cichowolski, Silvina Normandeau, M. St-Louis, N. |
author |
Pineault, Serge |
author_facet |
Pineault, Serge Arnal, Edmundo Marcelo Cappa, Cristina Elisabet Cichowolski, Silvina Normandeau, M. St-Louis, N. |
author_role |
author |
author2 |
Arnal, Edmundo Marcelo Cappa, Cristina Elisabet Cichowolski, Silvina Normandeau, M. St-Louis, N. |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Ciencias Astronómicas ISM: bubbles ISM: structure Stars: individual: HD 229196 Stars: mass-loss Stars: winds, outflows |
topic |
Ciencias Astronómicas ISM: bubbles ISM: structure Stars: individual: HD 229196 Stars: mass-loss Stars: winds, outflows |
dc.description.none.fl_txt_mv |
Massive stars with strong stellar winds are expected to have a huge impact on their interstellar surroundings, an effect which, in a surprisingly large number of cases, is not observed. This work is part of a concerted effort to obtain a better and more homogeneous observational data base with which to test the predictions of theoretical models. Analysis of the interstellar medium around the Of star HD 229196 shows that it coincides (in projection) with a region of lower radio continuum emission. This suggests that the star has shaped the surrounding interstellar medium via its ionizing flux and stellar wind. However, we find no clear evidence of the star's action in atomic hydrogen images. The radio continuum morphology and absence of a clear expanding H i shell are consistent with the possibility that the star, which is travelling supersonically at ∼30 km s<SUP>-1</SUP> with respect to its local interstellar medium, is creating a weak bow shock. We cannot however rule out the possibility that the observed asymmetry is due to an inhomogeneous interstellar density distribution. We use data from the Canadian Galactic Plane Survey to carry out this study. Facultad de Ciencias Astronómicas y Geofísicas Instituto Argentino de Radioastronomía |
description |
Massive stars with strong stellar winds are expected to have a huge impact on their interstellar surroundings, an effect which, in a surprisingly large number of cases, is not observed. This work is part of a concerted effort to obtain a better and more homogeneous observational data base with which to test the predictions of theoretical models. Analysis of the interstellar medium around the Of star HD 229196 shows that it coincides (in projection) with a region of lower radio continuum emission. This suggests that the star has shaped the surrounding interstellar medium via its ionizing flux and stellar wind. However, we find no clear evidence of the star's action in atomic hydrogen images. The radio continuum morphology and absence of a clear expanding H i shell are consistent with the possibility that the star, which is travelling supersonically at ∼30 km s<SUP>-1</SUP> with respect to its local interstellar medium, is creating a weak bow shock. We cannot however rule out the possibility that the observed asymmetry is due to an inhomogeneous interstellar density distribution. We use data from the Canadian Galactic Plane Survey to carry out this study. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008 |
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/10915/84284 |
url |
http://sedici.unlp.edu.ar/handle/10915/84284 |
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.1365-2966.2008.13164.x |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
application/pdf 1739-1749 |
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