HD 93129A at different radio scales

Autores
Benaglia, Paula; Dougherty, S. M.; Phillips, C.; Koribalski, Bärbel; Tzioumis, T.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Recent observations toward the O2 If* star HD 93129A have revealed important non-thermal radio emission, and that it has an early O companion 140 AU away if at 2.5 kpc (FGS-HST data). These facts strongly support the possibility of a massive stars wind-collision region as the acceleration site of the synchrotron-emitting relativistic electrons. We have carried out LBA VLBI observations at 2.37 GHz to resolve the non-thermal source, and search for a bow-shock shape, typical of a wind-collision region. Preliminary results are presented here.
Fil: Benaglia, Paula. 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: Dougherty, S. M.. Dominion Radio Astrophysical Observatory; Canadá
Fil: Phillips, C.. Australia Telescope National Facility; Australia
Fil: Koribalski, Bärbel. Australia Telescope National Facility; Australia
Fil: Tzioumis, T.. Australia Telescope National Facility; Australia
The Interferometric View on Hot Stars
Viña del Mar
Chile
Universidad de Valparaíso
Materia
RADIATION MECHANISMS: NON THERMAL
STARS: INDIVIDUAL (HD93129A)
STARS: WINDS
OUTFLOWS
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:11336/227686
Acceder
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network_name_str CONICET Digital (CONICET)
spelling HD 93129A at different radio scalesBenaglia, PaulaDougherty, S. M.Phillips, C.Koribalski, BärbelTzioumis, T.RADIATION MECHANISMS: NON THERMALSTARS: INDIVIDUAL (HD93129A)STARS: WINDSOUTFLOWShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Recent observations toward the O2 If* star HD 93129A have revealed important non-thermal radio emission, and that it has an early O companion 140 AU away if at 2.5 kpc (FGS-HST data). These facts strongly support the possibility of a massive stars wind-collision region as the acceleration site of the synchrotron-emitting relativistic electrons. We have carried out LBA VLBI observations at 2.37 GHz to resolve the non-thermal source, and search for a bow-shock shape, typical of a wind-collision region. Preliminary results are presented here.Fil: Benaglia, Paula. 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: Dougherty, S. M.. Dominion Radio Astrophysical Observatory; CanadáFil: Phillips, C.. Australia Telescope National Facility; AustraliaFil: Koribalski, Bärbel. Australia Telescope National Facility; AustraliaFil: Tzioumis, T.. Australia Telescope National Facility; AustraliaThe Interferometric View on Hot StarsViña del MarChileUniversidad de ValparaísoUniversidad Autónoma de México2010info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectWorkshopJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/227686HD 93129A at different radio scales; The Interferometric View on Hot Stars; Viña del Mar; Chile; 2009; 41-430185-1101CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.astroscu.unam.mx/rmaa/RMxAC..38/PDF/RMxAC..38_pbenaglia.pdfinfo:eu-repo/semantics/altIdentifier/url/https://www.redalyc.org/articulo.oa?id=57115706015info:eu-repo/semantics/altIdentifier/url/https://www.eso.org/sci/publications/messenger/archive/no.133-sep08/messenger-no133-64-64.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:49:06Zoai:ri.conicet.gov.ar:11336/227686instacron: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:34982025-11-12 09:49:07.198CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv HD 93129A at different radio scales
title HD 93129A at different radio scales
spellingShingle HD 93129A at different radio scales
Benaglia, Paula
RADIATION MECHANISMS: NON THERMAL
STARS: INDIVIDUAL (HD93129A)
STARS: WINDS
OUTFLOWS
title_short HD 93129A at different radio scales
title_full HD 93129A at different radio scales
title_fullStr HD 93129A at different radio scales
title_full_unstemmed HD 93129A at different radio scales
title_sort HD 93129A at different radio scales
dc.creator.none.fl_str_mv Benaglia, Paula
Dougherty, S. M.
Phillips, C.
Koribalski, Bärbel
Tzioumis, T.
author Benaglia, Paula
author_facet Benaglia, Paula
Dougherty, S. M.
Phillips, C.
Koribalski, Bärbel
Tzioumis, T.
author_role author
author2 Dougherty, S. M.
Phillips, C.
Koribalski, Bärbel
Tzioumis, T.
author2_role author
author
author
author
dc.subject.none.fl_str_mv RADIATION MECHANISMS: NON THERMAL
STARS: INDIVIDUAL (HD93129A)
STARS: WINDS
OUTFLOWS
topic RADIATION MECHANISMS: NON THERMAL
STARS: INDIVIDUAL (HD93129A)
STARS: WINDS
OUTFLOWS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Recent observations toward the O2 If* star HD 93129A have revealed important non-thermal radio emission, and that it has an early O companion 140 AU away if at 2.5 kpc (FGS-HST data). These facts strongly support the possibility of a massive stars wind-collision region as the acceleration site of the synchrotron-emitting relativistic electrons. We have carried out LBA VLBI observations at 2.37 GHz to resolve the non-thermal source, and search for a bow-shock shape, typical of a wind-collision region. Preliminary results are presented here.
Fil: Benaglia, Paula. 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: Dougherty, S. M.. Dominion Radio Astrophysical Observatory; Canadá
Fil: Phillips, C.. Australia Telescope National Facility; Australia
Fil: Koribalski, Bärbel. Australia Telescope National Facility; Australia
Fil: Tzioumis, T.. Australia Telescope National Facility; Australia
The Interferometric View on Hot Stars
Viña del Mar
Chile
Universidad de Valparaíso
description Recent observations toward the O2 If* star HD 93129A have revealed important non-thermal radio emission, and that it has an early O companion 140 AU away if at 2.5 kpc (FGS-HST data). These facts strongly support the possibility of a massive stars wind-collision region as the acceleration site of the synchrotron-emitting relativistic electrons. We have carried out LBA VLBI observations at 2.37 GHz to resolve the non-thermal source, and search for a bow-shock shape, typical of a wind-collision region. Preliminary results are presented here.
publishDate 2010
dc.date.none.fl_str_mv 2010
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Workshop
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/227686
HD 93129A at different radio scales; The Interferometric View on Hot Stars; Viña del Mar; Chile; 2009; 41-43
0185-1101
CONICET Digital
CONICET
url http://hdl.handle.net/11336/227686
identifier_str_mv HD 93129A at different radio scales; The Interferometric View on Hot Stars; Viña del Mar; Chile; 2009; 41-43
0185-1101
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.astroscu.unam.mx/rmaa/RMxAC..38/PDF/RMxAC..38_pbenaglia.pdf
info:eu-repo/semantics/altIdentifier/url/https://www.redalyc.org/articulo.oa?id=57115706015
info:eu-repo/semantics/altIdentifier/url/https://www.eso.org/sci/publications/messenger/archive/no.133-sep08/messenger-no133-64-64.pdf
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.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Universidad Autónoma de México
publisher.none.fl_str_mv Universidad Autónoma de México
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 13.142177

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