VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113
- Autores
- Cappa, Cristina Elisabeth; Goss, William Miller; Pineault, Serge
- Año de publicación
- 2002
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We report radio continuum observations at 1465 MHz obtained with the Very Large Array (VLA) in the DnC configuration toward the ring nebulae associated with the stars WR 101 and WR 113, with resolutions of 3800 and 3000, respectively. IRAS images of the nebulae with resolutions of about 20 (90 M, 40 cm3) are also analyzed. A remarkable resemblance among the optical, infrared, and radio images of these ring nebulae is observed. The VLA data indicate that Anon. WR 101 is thermal in nature. An ionized mass of 230 40 M and electron densities in the range 40–55 cm3 were estimated for Anon. WR 101. The derived ionized masses and electron densities in the inner and outer shells of the nebula related to WR 113 are 20 10 M, 180–500 cm3 and 90 M 40 cm3, respectively. Based on infrared data at 60 and 100 lm, the derived masses and temperatures for the dust component in the ring nebula around WR 101 are 0.3–1 M and 40 K. The associated masses suggest that the ring nebula related to WR 101 and the outer arc associated with WR 113 consist of swept-up interstellar matter, while the relatively low ionized mass associated with the inner shell of the nebula around WR 113 may contain a nonnegligible contribution of expelled ejecta material. The derived electron densities for the nebula around WR 101 and the inner shell around WR 113 are comparable to electron densities for other W-R ring nebulae. Low filling factors are inferred for both nebulae. The nebulae probably originated during the current W-R phase of the stars.
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: Goss, William Miller. National Radio Astronomy Observatory; Estados Unidos
Fil: Pineault, Serge. Laval University; Canadá - Materia
-
Ring nebulae
Stellar winds
Radio continuum
Wolf rayet stars
Anon WR 101 (estrella)
Anon WR 113 (estrella) - 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:11336/29963
Ver los metadatos del registro completo
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VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113Cappa, Cristina ElisabethGoss, William MillerPineault, SergeRing nebulaeStellar windsRadio continuumWolf rayet starsAnon WR 101 (estrella)Anon WR 113 (estrella)We report radio continuum observations at 1465 MHz obtained with the Very Large Array (VLA) in the DnC configuration toward the ring nebulae associated with the stars WR 101 and WR 113, with resolutions of 3800 and 3000, respectively. IRAS images of the nebulae with resolutions of about 20 (90 M, 40 cm3) are also analyzed. A remarkable resemblance among the optical, infrared, and radio images of these ring nebulae is observed. The VLA data indicate that Anon. WR 101 is thermal in nature. An ionized mass of 230 40 M and electron densities in the range 40–55 cm3 were estimated for Anon. WR 101. The derived ionized masses and electron densities in the inner and outer shells of the nebula related to WR 113 are 20 10 M, 180–500 cm3 and 90 M 40 cm3, respectively. Based on infrared data at 60 and 100 lm, the derived masses and temperatures for the dust component in the ring nebula around WR 101 are 0.3–1 M and 40 K. The associated masses suggest that the ring nebula related to WR 101 and the outer arc associated with WR 113 consist of swept-up interstellar matter, while the relatively low ionized mass associated with the inner shell of the nebula around WR 113 may contain a nonnegligible contribution of expelled ejecta material. The derived electron densities for the nebula around WR 101 and the inner shell around WR 113 are comparable to electron densities for other W-R ring nebulae. Low filling factors are inferred for both nebulae. The nebulae probably originated during the current W-R phase of the stars.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: Goss, William Miller. National Radio Astronomy Observatory; Estados UnidosFil: Pineault, Serge. Laval University; CanadáIOP Publishing2002-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/29963Cappa, Cristina Elisabeth; Goss, William Miller; Pineault, Serge; VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113; IOP Publishing; Astronomical Journal; 123; 6-2002; 3348-33550004-6256CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1086/340725info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/340725/metainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:45:38Zoai:ri.conicet.gov.ar:11336/29963instacron: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 09:45:39.115CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113 |
title |
VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113 |
spellingShingle |
VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113 Cappa, Cristina Elisabeth Ring nebulae Stellar winds Radio continuum Wolf rayet stars Anon WR 101 (estrella) Anon WR 113 (estrella) |
title_short |
VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113 |
title_full |
VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113 |
title_fullStr |
VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113 |
title_full_unstemmed |
VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113 |
title_sort |
VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113 |
dc.creator.none.fl_str_mv |
Cappa, Cristina Elisabeth Goss, William Miller Pineault, Serge |
author |
Cappa, Cristina Elisabeth |
author_facet |
Cappa, Cristina Elisabeth Goss, William Miller Pineault, Serge |
author_role |
author |
author2 |
Goss, William Miller Pineault, Serge |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Ring nebulae Stellar winds Radio continuum Wolf rayet stars Anon WR 101 (estrella) Anon WR 113 (estrella) |
topic |
Ring nebulae Stellar winds Radio continuum Wolf rayet stars Anon WR 101 (estrella) Anon WR 113 (estrella) |
dc.description.none.fl_txt_mv |
We report radio continuum observations at 1465 MHz obtained with the Very Large Array (VLA) in the DnC configuration toward the ring nebulae associated with the stars WR 101 and WR 113, with resolutions of 3800 and 3000, respectively. IRAS images of the nebulae with resolutions of about 20 (90 M, 40 cm3) are also analyzed. A remarkable resemblance among the optical, infrared, and radio images of these ring nebulae is observed. The VLA data indicate that Anon. WR 101 is thermal in nature. An ionized mass of 230 40 M and electron densities in the range 40–55 cm3 were estimated for Anon. WR 101. The derived ionized masses and electron densities in the inner and outer shells of the nebula related to WR 113 are 20 10 M, 180–500 cm3 and 90 M 40 cm3, respectively. Based on infrared data at 60 and 100 lm, the derived masses and temperatures for the dust component in the ring nebula around WR 101 are 0.3–1 M and 40 K. The associated masses suggest that the ring nebula related to WR 101 and the outer arc associated with WR 113 consist of swept-up interstellar matter, while the relatively low ionized mass associated with the inner shell of the nebula around WR 113 may contain a nonnegligible contribution of expelled ejecta material. The derived electron densities for the nebula around WR 101 and the inner shell around WR 113 are comparable to electron densities for other W-R ring nebulae. Low filling factors are inferred for both nebulae. The nebulae probably originated during the current W-R phase of the stars. 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: Goss, William Miller. National Radio Astronomy Observatory; Estados Unidos Fil: Pineault, Serge. Laval University; Canadá |
description |
We report radio continuum observations at 1465 MHz obtained with the Very Large Array (VLA) in the DnC configuration toward the ring nebulae associated with the stars WR 101 and WR 113, with resolutions of 3800 and 3000, respectively. IRAS images of the nebulae with resolutions of about 20 (90 M, 40 cm3) are also analyzed. A remarkable resemblance among the optical, infrared, and radio images of these ring nebulae is observed. The VLA data indicate that Anon. WR 101 is thermal in nature. An ionized mass of 230 40 M and electron densities in the range 40–55 cm3 were estimated for Anon. WR 101. The derived ionized masses and electron densities in the inner and outer shells of the nebula related to WR 113 are 20 10 M, 180–500 cm3 and 90 M 40 cm3, respectively. Based on infrared data at 60 and 100 lm, the derived masses and temperatures for the dust component in the ring nebula around WR 101 are 0.3–1 M and 40 K. The associated masses suggest that the ring nebula related to WR 101 and the outer arc associated with WR 113 consist of swept-up interstellar matter, while the relatively low ionized mass associated with the inner shell of the nebula around WR 113 may contain a nonnegligible contribution of expelled ejecta material. The derived electron densities for the nebula around WR 101 and the inner shell around WR 113 are comparable to electron densities for other W-R ring nebulae. Low filling factors are inferred for both nebulae. The nebulae probably originated during the current W-R phase of the stars. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-06 |
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/11336/29963 Cappa, Cristina Elisabeth; Goss, William Miller; Pineault, Serge; VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113; IOP Publishing; Astronomical Journal; 123; 6-2002; 3348-3355 0004-6256 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/29963 |
identifier_str_mv |
Cappa, Cristina Elisabeth; Goss, William Miller; Pineault, Serge; VLA radio continuum and IRAS observing of the ring nebulae around W 101 and W 113; IOP Publishing; Astronomical Journal; 123; 6-2002; 3348-3355 0004-6256 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1086/340725 info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/340725/meta |
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 |
IOP Publishing |
publisher.none.fl_str_mv |
IOP Publishing |
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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1844613429414854656 |
score |
13.070432 |