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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/29963

id CONICETDig_eb09cd8a742385229a447919c1b72b78
oai_identifier_str oai:ri.conicet.gov.ar:11336/29963
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling 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
_version_ 1844613429414854656
score 13.070432