Non-thermal radiation from a runaway early-type star

Autores
del Valle, Maria Victoria; Romero, Gustavo Esteban; De Becker, M.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
HD 195592 is an O-type supergiant star, known as a well-established runaway. Recently, a Fermi γ-ray source (2FGL J2030.7+4417) with a position compatible with that of HD 195592 has been reported. Our goal is to explore a scenario where HD 195592 is the counterpart of the Fermi γ-ray source. The high-energy emission would be inverse Compton radiation produced in the bowshock of the runaway star. We calculate relativistic particle energy losses and the resulting radiation from the bowshock of HD 195592 and show that the latter is compatible with the detected γ-ray emission. We conclude that the Fermi source 2FGL J2030.7+4417 might be produced, under some energetic assumptions, by inverse Compton up-scattering of infrared photons from locally heated dust. HD 195592 might therefore be the very first object detected belonging to the category of γ-ray emitting runaway massive stars, whose existence has been recently predicted.
Fil: del Valle, Maria Victoria. 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: Romero, Gustavo Esteban. 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: De Becker, M.. Université de Liège; Bélgica
High Energy Gamma-Ray Astronomy: 5th International Meeting on High Energy Gamma-Ray Astronomy
Heidelberg
Alemania
Max-Planck-Institut für Kernphysik
Materia
GAMMA-RAYS: THEORY
STARS: EARLY-TYPE
STARS: WINDS
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:11336/152211
Acceder
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spelling Non-thermal radiation from a runaway early-type stardel Valle, Maria VictoriaRomero, Gustavo EstebanDe Becker, M.GAMMA-RAYS: THEORYSTARS: EARLY-TYPESTARS: WINDShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1HD 195592 is an O-type supergiant star, known as a well-established runaway. Recently, a Fermi γ-ray source (2FGL J2030.7+4417) with a position compatible with that of HD 195592 has been reported. Our goal is to explore a scenario where HD 195592 is the counterpart of the Fermi γ-ray source. The high-energy emission would be inverse Compton radiation produced in the bowshock of the runaway star. We calculate relativistic particle energy losses and the resulting radiation from the bowshock of HD 195592 and show that the latter is compatible with the detected γ-ray emission. We conclude that the Fermi source 2FGL J2030.7+4417 might be produced, under some energetic assumptions, by inverse Compton up-scattering of infrared photons from locally heated dust. HD 195592 might therefore be the very first object detected belonging to the category of γ-ray emitting runaway massive stars, whose existence has been recently predicted.Fil: del Valle, Maria Victoria. 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: Romero, Gustavo Esteban. 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: De Becker, M.. Université de Liège; BélgicaHigh Energy Gamma-Ray Astronomy: 5th International Meeting on High Energy Gamma-Ray AstronomyHeidelbergAlemaniaMax-Planck-Institut für KernphysikAmerican Institute of PhysicsAharonian, Felix A.Hofmann, WernerRieger, Frank M.2012info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectConferenciaBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/152211Non-thermal radiation from a runaway early-type star; High Energy Gamma-Ray Astronomy: 5th International Meeting on High Energy Gamma-Ray Astronomy; Heidelberg; Alemania; 2012; 189-29297807354112340094-243XCONICET DigitalCONICETenghttps://ri.conicet.gov.ar/handle/11336/5210info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/abs/10.1063/1.4772254info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4772254info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/abs/10.1063/1.4772254Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:09Zoai:ri.conicet.gov.ar:11336/152211instacron: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 09:33:09.955CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Non-thermal radiation from a runaway early-type star
title Non-thermal radiation from a runaway early-type star
spellingShingle Non-thermal radiation from a runaway early-type star
del Valle, Maria Victoria
GAMMA-RAYS: THEORY
STARS: EARLY-TYPE
STARS: WINDS
title_short Non-thermal radiation from a runaway early-type star
title_full Non-thermal radiation from a runaway early-type star
title_fullStr Non-thermal radiation from a runaway early-type star
title_full_unstemmed Non-thermal radiation from a runaway early-type star
title_sort Non-thermal radiation from a runaway early-type star
dc.creator.none.fl_str_mv del Valle, Maria Victoria
Romero, Gustavo Esteban
De Becker, M.
author del Valle, Maria Victoria
author_facet del Valle, Maria Victoria
Romero, Gustavo Esteban
De Becker, M.
author_role author
author2 Romero, Gustavo Esteban
De Becker, M.
author2_role author
author
dc.contributor.none.fl_str_mv Aharonian, Felix A.
Hofmann, Werner
Rieger, Frank M.
dc.subject.none.fl_str_mv GAMMA-RAYS: THEORY
STARS: EARLY-TYPE
STARS: WINDS
topic GAMMA-RAYS: THEORY
STARS: EARLY-TYPE
STARS: WINDS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv HD 195592 is an O-type supergiant star, known as a well-established runaway. Recently, a Fermi γ-ray source (2FGL J2030.7+4417) with a position compatible with that of HD 195592 has been reported. Our goal is to explore a scenario where HD 195592 is the counterpart of the Fermi γ-ray source. The high-energy emission would be inverse Compton radiation produced in the bowshock of the runaway star. We calculate relativistic particle energy losses and the resulting radiation from the bowshock of HD 195592 and show that the latter is compatible with the detected γ-ray emission. We conclude that the Fermi source 2FGL J2030.7+4417 might be produced, under some energetic assumptions, by inverse Compton up-scattering of infrared photons from locally heated dust. HD 195592 might therefore be the very first object detected belonging to the category of γ-ray emitting runaway massive stars, whose existence has been recently predicted.
Fil: del Valle, Maria Victoria. 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: Romero, Gustavo Esteban. 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: De Becker, M.. Université de Liège; Bélgica
High Energy Gamma-Ray Astronomy: 5th International Meeting on High Energy Gamma-Ray Astronomy
Heidelberg
Alemania
Max-Planck-Institut für Kernphysik
description HD 195592 is an O-type supergiant star, known as a well-established runaway. Recently, a Fermi γ-ray source (2FGL J2030.7+4417) with a position compatible with that of HD 195592 has been reported. Our goal is to explore a scenario where HD 195592 is the counterpart of the Fermi γ-ray source. The high-energy emission would be inverse Compton radiation produced in the bowshock of the runaway star. We calculate relativistic particle energy losses and the resulting radiation from the bowshock of HD 195592 and show that the latter is compatible with the detected γ-ray emission. We conclude that the Fermi source 2FGL J2030.7+4417 might be produced, under some energetic assumptions, by inverse Compton up-scattering of infrared photons from locally heated dust. HD 195592 might therefore be the very first object detected belonging to the category of γ-ray emitting runaway massive stars, whose existence has been recently predicted.
publishDate 2012
dc.date.none.fl_str_mv 2012
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Conferencia
Book
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/11336/152211
Non-thermal radiation from a runaway early-type star; High Energy Gamma-Ray Astronomy: 5th International Meeting on High Energy Gamma-Ray Astronomy; Heidelberg; Alemania; 2012; 189-292
9780735411234
0094-243X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/152211
identifier_str_mv Non-thermal radiation from a runaway early-type star; High Energy Gamma-Ray Astronomy: 5th International Meeting on High Energy Gamma-Ray Astronomy; Heidelberg; Alemania; 2012; 189-292
9780735411234
0094-243X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ri.conicet.gov.ar/handle/11336/5210
info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/abs/10.1063/1.4772254
info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4772254
info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/abs/10.1063/1.4772254
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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 American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
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 13.070432

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