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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/140716

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spelling 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/
dc.format.none.fl_str_mv 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
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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