HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52

Autores
Cappa, Cristina Elisabeth; Niemela, Virpi S.; Martin, Maria Cristina; McClure Griffiths, Naomi M.
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyze the interstellar medium in the environs of two hot and massive stars, HD 92809 (= WR 23, WC6) and LSS 1887 (O8V), which ionize the optical ring nebulae Anon(WR 23) and RCW 52, respectively. Our analysis is based on neutral hydrogen (Hi) 21cm line data, which reveal interstellar bubbles surrounding the massive stars and their optical ring nebulae. The Hi bubble related to WR 23 is 13.3 pc in radius and is expanding at 10 km s −1 . The associated atomic neutral mass amounts to 830 M . The Hi structure related to LSS 1887 is about 6.3 pc in radius, has an expansion velocity of 7 km s −1 and an associated atomic neutral mass of 100 M . These Hi features are the neutral counterparts of the optical ring nebulae and were mainly created by the action of the stellar winds of the massive stars on their environs. The dynamical age of the Hi bubble around WR 23 (7×105 yr) suggests that it was created during the WR phase of stellar evolution. However, the large tangential motions of WR 23 and LSS 1887 suggest that part of the observed optical and Hi structures may be due to a bow shock. The analysis of the distribution of emission in the far infrared and in the CO(1-0) molecular line in the environs of WR 23 and LSS 1887, reveals that there are also infrared and molecular counterparts of the detected Hi bubbles.
Fil: Cappa, Cristina Elisabeth. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Niemela, Virpi S.. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Martin, Maria Cristina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: McClure Griffiths, Naomi M.. Australia Telescope National Facility; Australia
Materia
Interstellar bubbles
HII regions
Ring nebulae
Anon (WR 23)
RCW52 (estrella)
Early-type stars
Wolf-Rayet stars
WR 23 (estrella)
LSS 1887 (estrella)
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:11336/29551
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/29551
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52Cappa, Cristina ElisabethNiemela, Virpi S.Martin, Maria CristinaMcClure Griffiths, Naomi M.Interstellar bubblesHII regionsRing nebulaeAnon (WR 23)RCW52 (estrella)Early-type starsWolf-Rayet starsWR 23 (estrella)LSS 1887 (estrella)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyze the interstellar medium in the environs of two hot and massive stars, HD 92809 (= WR 23, WC6) and LSS 1887 (O8V), which ionize the optical ring nebulae Anon(WR 23) and RCW 52, respectively. Our analysis is based on neutral hydrogen (Hi) 21cm line data, which reveal interstellar bubbles surrounding the massive stars and their optical ring nebulae. The Hi bubble related to WR 23 is 13.3 pc in radius and is expanding at 10 km s −1 . The associated atomic neutral mass amounts to 830 M . The Hi structure related to LSS 1887 is about 6.3 pc in radius, has an expansion velocity of 7 km s −1 and an associated atomic neutral mass of 100 M . These Hi features are the neutral counterparts of the optical ring nebulae and were mainly created by the action of the stellar winds of the massive stars on their environs. The dynamical age of the Hi bubble around WR 23 (7×105 yr) suggests that it was created during the WR phase of stellar evolution. However, the large tangential motions of WR 23 and LSS 1887 suggest that part of the observed optical and Hi structures may be due to a bow shock. The analysis of the distribution of emission in the far infrared and in the CO(1-0) molecular line in the environs of WR 23 and LSS 1887, reveals that there are also infrared and molecular counterparts of the detected Hi bubbles.Fil: Cappa, Cristina Elisabeth. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; ArgentinaFil: Niemela, Virpi S.. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Martin, Maria Cristina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; ArgentinaFil: McClure Griffiths, Naomi M.. Australia Telescope National Facility; AustraliaEDP Sciences2005-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/29551Cappa, Cristina Elisabeth; Niemela, Virpi S.; Martin, Maria Cristina; McClure Griffiths, Naomi M.; HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52; EDP Sciences; Astronomy and Astrophysics; 436; 12-2005; 155-1630004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20042344info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2005/22/aa2344-04/aa2344-04.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:46:13Zoai:ri.conicet.gov.ar:11336/29551instacron: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 10:46:13.331CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52
title HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52
spellingShingle HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52
Cappa, Cristina Elisabeth
Interstellar bubbles
HII regions
Ring nebulae
Anon (WR 23)
RCW52 (estrella)
Early-type stars
Wolf-Rayet stars
WR 23 (estrella)
LSS 1887 (estrella)
title_short HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52
title_full HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52
title_fullStr HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52
title_full_unstemmed HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52
title_sort HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52
dc.creator.none.fl_str_mv Cappa, Cristina Elisabeth
Niemela, Virpi S.
Martin, Maria Cristina
McClure Griffiths, Naomi M.
author Cappa, Cristina Elisabeth
author_facet Cappa, Cristina Elisabeth
Niemela, Virpi S.
Martin, Maria Cristina
McClure Griffiths, Naomi M.
author_role author
author2 Niemela, Virpi S.
Martin, Maria Cristina
McClure Griffiths, Naomi M.
author2_role author
author
author
dc.subject.none.fl_str_mv Interstellar bubbles
HII regions
Ring nebulae
Anon (WR 23)
RCW52 (estrella)
Early-type stars
Wolf-Rayet stars
WR 23 (estrella)
LSS 1887 (estrella)
topic Interstellar bubbles
HII regions
Ring nebulae
Anon (WR 23)
RCW52 (estrella)
Early-type stars
Wolf-Rayet stars
WR 23 (estrella)
LSS 1887 (estrella)
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 analyze the interstellar medium in the environs of two hot and massive stars, HD 92809 (= WR 23, WC6) and LSS 1887 (O8V), which ionize the optical ring nebulae Anon(WR 23) and RCW 52, respectively. Our analysis is based on neutral hydrogen (Hi) 21cm line data, which reveal interstellar bubbles surrounding the massive stars and their optical ring nebulae. The Hi bubble related to WR 23 is 13.3 pc in radius and is expanding at 10 km s −1 . The associated atomic neutral mass amounts to 830 M . The Hi structure related to LSS 1887 is about 6.3 pc in radius, has an expansion velocity of 7 km s −1 and an associated atomic neutral mass of 100 M . These Hi features are the neutral counterparts of the optical ring nebulae and were mainly created by the action of the stellar winds of the massive stars on their environs. The dynamical age of the Hi bubble around WR 23 (7×105 yr) suggests that it was created during the WR phase of stellar evolution. However, the large tangential motions of WR 23 and LSS 1887 suggest that part of the observed optical and Hi structures may be due to a bow shock. The analysis of the distribution of emission in the far infrared and in the CO(1-0) molecular line in the environs of WR 23 and LSS 1887, reveals that there are also infrared and molecular counterparts of the detected Hi bubbles.
Fil: Cappa, Cristina Elisabeth. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Niemela, Virpi S.. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Martin, Maria Cristina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: McClure Griffiths, Naomi M.. Australia Telescope National Facility; Australia
description We analyze the interstellar medium in the environs of two hot and massive stars, HD 92809 (= WR 23, WC6) and LSS 1887 (O8V), which ionize the optical ring nebulae Anon(WR 23) and RCW 52, respectively. Our analysis is based on neutral hydrogen (Hi) 21cm line data, which reveal interstellar bubbles surrounding the massive stars and their optical ring nebulae. The Hi bubble related to WR 23 is 13.3 pc in radius and is expanding at 10 km s −1 . The associated atomic neutral mass amounts to 830 M . The Hi structure related to LSS 1887 is about 6.3 pc in radius, has an expansion velocity of 7 km s −1 and an associated atomic neutral mass of 100 M . These Hi features are the neutral counterparts of the optical ring nebulae and were mainly created by the action of the stellar winds of the massive stars on their environs. The dynamical age of the Hi bubble around WR 23 (7×105 yr) suggests that it was created during the WR phase of stellar evolution. However, the large tangential motions of WR 23 and LSS 1887 suggest that part of the observed optical and Hi structures may be due to a bow shock. The analysis of the distribution of emission in the far infrared and in the CO(1-0) molecular line in the environs of WR 23 and LSS 1887, reveals that there are also infrared and molecular counterparts of the detected Hi bubbles.
publishDate 2005
dc.date.none.fl_str_mv 2005-12
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/11336/29551
Cappa, Cristina Elisabeth; Niemela, Virpi S.; Martin, Maria Cristina; McClure Griffiths, Naomi M.; HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52; EDP Sciences; Astronomy and Astrophysics; 436; 12-2005; 155-163
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/29551
identifier_str_mv Cappa, Cristina Elisabeth; Niemela, Virpi S.; Martin, Maria Cristina; McClure Griffiths, Naomi M.; HI bubbles surrounding southern optical ring nebulae: Anon(WR 23) and RCW 52; EDP Sciences; Astronomy and Astrophysics; 436; 12-2005; 155-163
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20042344
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2005/22/aa2344-04/aa2344-04.html
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
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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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score 13.070432

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