The high-energy emission from the massive colliding-wind binary HD 93129A near periastron
- Autores
- del Palacio, Santiago; García, Federico; Altamirano, D.; Corcoran, M; Hamaguchi, K
- Año de publicación
- 2021
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- We conducted an observational campaign towards one of the most massive and luminous colliding wind binaries in the Galaxy, HD 93129A, close to its periastron passage in 2018. During this time the source was predicted to be in its maximum of high-energy emission. We present the results from our observations with the X-ray satellites Chandra and NuSTAR and the γ-ray satellite AGILE. High-energy emission coincident with HD 93129A was detected in the X-ray band up to ∼18 keV, whereas in the γ-ray band only upper limits were obtained. We interpret the derived fluxes using a non-thermal radiative model for the wind-collision region. We estimate the fraction of the wind kinetic power that is converted into relativistic electron acceleration and the magnetic field in the wind-collision region. We conclude that multiwavelength, dedicated observing campaigns during carefully selected epochs are a powerful tool for characterizing the relativistic particle content and magnetic field intensity in colliding wind binaries.
Fil: del Palacio, Santiago. 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: García, Federico. Kapteyn Astronomical Institute; Países Bajos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Altamirano, D.. University of Southampton; Reino Unido
Fil: Corcoran, M. Nasa Goddard Space Flight Center; Estados Unidos
Fil: Hamaguchi, K. Nasa Goddard Space Flight Center; Estados Unidos
237th meeting of the American Astronomical Society
Washington
Estados Unidos
The American Astronomical Society - Materia
-
STARS: MASSIVE, WINDS
RADIATION MECHANISMS: NON-THERMAL
ACCELERATION OF PARTICLES
X-RAYS: STARS - 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:11336/140716
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The high-energy emission from the massive colliding-wind binary HD 93129A near periastrondel Palacio, SantiagoGarcía, FedericoAltamirano, D.Corcoran, MHamaguchi, KSTARS: MASSIVE, WINDSRADIATION MECHANISMS: NON-THERMALACCELERATION OF PARTICLESX-RAYS: STARShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We conducted an observational campaign towards one of the most massive and luminous colliding wind binaries in the Galaxy, HD 93129A, close to its periastron passage in 2018. During this time the source was predicted to be in its maximum of high-energy emission. We present the results from our observations with the X-ray satellites Chandra and NuSTAR and the γ-ray satellite AGILE. High-energy emission coincident with HD 93129A was detected in the X-ray band up to ∼18 keV, whereas in the γ-ray band only upper limits were obtained. We interpret the derived fluxes using a non-thermal radiative model for the wind-collision region. We estimate the fraction of the wind kinetic power that is converted into relativistic electron acceleration and the magnetic field in the wind-collision region. We conclude that multiwavelength, dedicated observing campaigns during carefully selected epochs are a powerful tool for characterizing the relativistic particle content and magnetic field intensity in colliding wind binaries.Fil: del Palacio, Santiago. 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: García, Federico. Kapteyn Astronomical Institute; Países Bajos. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Altamirano, D.. University of Southampton; Reino UnidoFil: Corcoran, M. Nasa Goddard Space Flight Center; Estados UnidosFil: Hamaguchi, K. Nasa Goddard Space Flight Center; Estados Unidos237th meeting of the American Astronomical SocietyWashingtonEstados UnidosThe American Astronomical SocietyThe American Astronomical Society2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/140716The high-energy emission from the massive colliding-wind binary HD 93129A near periastron; 237th meeting of the American Astronomical Society; Washington; Estados Unidos; 2021; 1-20002-7537CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://baas.aas.org/pub/2021n1i136p09/release/1info:eu-repo/semantics/altIdentifier/url/https://aas.org/meetings/aas237Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:39:04Zoai:ri.conicet.gov.ar:11336/140716instacron: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:34982025-10-15 14:39:04.898CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
The high-energy emission from the massive colliding-wind binary HD 93129A near periastron |
title |
The high-energy emission from the massive colliding-wind binary HD 93129A near periastron |
spellingShingle |
The high-energy emission from the massive colliding-wind binary HD 93129A near periastron del Palacio, Santiago STARS: MASSIVE, WINDS RADIATION MECHANISMS: NON-THERMAL ACCELERATION OF PARTICLES X-RAYS: STARS |
title_short |
The high-energy emission from the massive colliding-wind binary HD 93129A near periastron |
title_full |
The high-energy emission from the massive colliding-wind binary HD 93129A near periastron |
title_fullStr |
The high-energy emission from the massive colliding-wind binary HD 93129A near periastron |
title_full_unstemmed |
The high-energy emission from the massive colliding-wind binary HD 93129A near periastron |
title_sort |
The high-energy emission from the massive colliding-wind binary HD 93129A near periastron |
dc.creator.none.fl_str_mv |
del Palacio, Santiago García, Federico Altamirano, D. Corcoran, M Hamaguchi, K |
author |
del Palacio, Santiago |
author_facet |
del Palacio, Santiago García, Federico Altamirano, D. Corcoran, M Hamaguchi, K |
author_role |
author |
author2 |
García, Federico Altamirano, D. Corcoran, M Hamaguchi, K |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
STARS: MASSIVE, WINDS RADIATION MECHANISMS: NON-THERMAL ACCELERATION OF PARTICLES X-RAYS: STARS |
topic |
STARS: MASSIVE, WINDS RADIATION MECHANISMS: NON-THERMAL ACCELERATION OF PARTICLES X-RAYS: STARS |
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 conducted an observational campaign towards one of the most massive and luminous colliding wind binaries in the Galaxy, HD 93129A, close to its periastron passage in 2018. During this time the source was predicted to be in its maximum of high-energy emission. We present the results from our observations with the X-ray satellites Chandra and NuSTAR and the γ-ray satellite AGILE. High-energy emission coincident with HD 93129A was detected in the X-ray band up to ∼18 keV, whereas in the γ-ray band only upper limits were obtained. We interpret the derived fluxes using a non-thermal radiative model for the wind-collision region. We estimate the fraction of the wind kinetic power that is converted into relativistic electron acceleration and the magnetic field in the wind-collision region. We conclude that multiwavelength, dedicated observing campaigns during carefully selected epochs are a powerful tool for characterizing the relativistic particle content and magnetic field intensity in colliding wind binaries. Fil: del Palacio, Santiago. 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: García, Federico. Kapteyn Astronomical Institute; Países Bajos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Altamirano, D.. University of Southampton; Reino Unido Fil: Corcoran, M. Nasa Goddard Space Flight Center; Estados Unidos Fil: Hamaguchi, K. Nasa Goddard Space Flight Center; Estados Unidos 237th meeting of the American Astronomical Society Washington Estados Unidos The American Astronomical Society |
description |
We conducted an observational campaign towards one of the most massive and luminous colliding wind binaries in the Galaxy, HD 93129A, close to its periastron passage in 2018. During this time the source was predicted to be in its maximum of high-energy emission. We present the results from our observations with the X-ray satellites Chandra and NuSTAR and the γ-ray satellite AGILE. High-energy emission coincident with HD 93129A was detected in the X-ray band up to ∼18 keV, whereas in the γ-ray band only upper limits were obtained. We interpret the derived fluxes using a non-thermal radiative model for the wind-collision region. We estimate the fraction of the wind kinetic power that is converted into relativistic electron acceleration and the magnetic field in the wind-collision region. We conclude that multiwavelength, dedicated observing campaigns during carefully selected epochs are a powerful tool for characterizing the relativistic particle content and magnetic field intensity in colliding wind binaries. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Congreso 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/11336/140716 The high-energy emission from the massive colliding-wind binary HD 93129A near periastron; 237th meeting of the American Astronomical Society; Washington; Estados Unidos; 2021; 1-2 0002-7537 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/140716 |
identifier_str_mv |
The high-energy emission from the massive colliding-wind binary HD 93129A near periastron; 237th meeting of the American Astronomical Society; Washington; Estados Unidos; 2021; 1-2 0002-7537 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://baas.aas.org/pub/2021n1i136p09/release/1 info:eu-repo/semantics/altIdentifier/url/https://aas.org/meetings/aas237 |
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/ |
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application/pdf application/pdf |
dc.coverage.none.fl_str_mv |
Internacional |
dc.publisher.none.fl_str_mv |
The American Astronomical Society |
publisher.none.fl_str_mv |
The American Astronomical Society |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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