Non-thermal radiation from a runaway massive star

Autores
Romero, Gustavo Esteban; Benaglia, Paula; Peri, Cintia Soledad; Martí, Josep; Araudo, Anabella Teresa
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present a study of the radio emission from a massive runaway star. The star forms a bow shock that is clearly observed in the infrared. We have performed VLA observations under the assumption that the reverse shock in the stellar wind might accelerate charged particles up to relativistic energies. Non-thermal radio emission of synchrotron origin has been detected, confirming the hypothesis. We have then modeled the system and we predict a spectral energy distribution that extends up to gamma-rays. Under some simplifying assumptions, we find that the intensity at high energies is too low to be detected by current instruments, but the future Cherenkov Telescope Array might detect the source.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
Early-type stars
Cherenkov telescope array
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/99537
Acceder
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network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Non-thermal radiation from a runaway massive starRomero, Gustavo EstebanBenaglia, PaulaPeri, Cintia SoledadMartí, JosepAraudo, Anabella TeresaCiencias AstronómicasEarly-type starsCherenkov telescope arrayWe present a study of the radio emission from a massive runaway star. The star forms a bow shock that is clearly observed in the infrared. We have performed VLA observations under the assumption that the reverse shock in the stellar wind might accelerate charged particles up to relativistic energies. Non-thermal radio emission of synchrotron origin has been detected, confirming the hypothesis. We have then modeled the system and we predict a spectral energy distribution that extends up to gamma-rays. Under some simplifying assumptions, we find that the intensity at high energies is too low to be detected by current instruments, but the future Cherenkov Telescope Array might detect the source.Facultad de Ciencias Astronómicas y Geofísicas2011-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf420-424http://sedici.unlp.edu.ar/handle/10915/99537enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/5210info:eu-repo/semantics/altIdentifier/url/http://arxiv.org/abs/1011.2773v1info:eu-repo/semantics/altIdentifier/issn/0037-9565info:eu-repo/semantics/altIdentifier/arxiv/http://arxiv.org/abs/1011.2773v1info:eu-repo/semantics/altIdentifier/arxiv/1011.2773v1info:eu-repo/semantics/altIdentifier/hdl/11336/5210info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:20:06Zoai:sedici.unlp.edu.ar:10915/99537Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:20:07.027SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Non-thermal radiation from a runaway massive star
title Non-thermal radiation from a runaway massive star
spellingShingle Non-thermal radiation from a runaway massive star
Romero, Gustavo Esteban
Ciencias Astronómicas
Early-type stars
Cherenkov telescope array
title_short Non-thermal radiation from a runaway massive star
title_full Non-thermal radiation from a runaway massive star
title_fullStr Non-thermal radiation from a runaway massive star
title_full_unstemmed Non-thermal radiation from a runaway massive star
title_sort Non-thermal radiation from a runaway massive star
dc.creator.none.fl_str_mv Romero, Gustavo Esteban
Benaglia, Paula
Peri, Cintia Soledad
Martí, Josep
Araudo, Anabella Teresa
author Romero, Gustavo Esteban
author_facet Romero, Gustavo Esteban
Benaglia, Paula
Peri, Cintia Soledad
Martí, Josep
Araudo, Anabella Teresa
author_role author
author2 Benaglia, Paula
Peri, Cintia Soledad
Martí, Josep
Araudo, Anabella Teresa
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Early-type stars
Cherenkov telescope array
topic Ciencias Astronómicas
Early-type stars
Cherenkov telescope array
dc.description.none.fl_txt_mv We present a study of the radio emission from a massive runaway star. The star forms a bow shock that is clearly observed in the infrared. We have performed VLA observations under the assumption that the reverse shock in the stellar wind might accelerate charged particles up to relativistic energies. Non-thermal radio emission of synchrotron origin has been detected, confirming the hypothesis. We have then modeled the system and we predict a spectral energy distribution that extends up to gamma-rays. Under some simplifying assumptions, we find that the intensity at high energies is too low to be detected by current instruments, but the future Cherenkov Telescope Array might detect the source.
Facultad de Ciencias Astronómicas y Geofísicas
description We present a study of the radio emission from a massive runaway star. The star forms a bow shock that is clearly observed in the infrared. We have performed VLA observations under the assumption that the reverse shock in the stellar wind might accelerate charged particles up to relativistic energies. Non-thermal radio emission of synchrotron origin has been detected, confirming the hypothesis. We have then modeled the system and we predict a spectral energy distribution that extends up to gamma-rays. Under some simplifying assumptions, we find that the intensity at high energies is too low to be detected by current instruments, but the future Cherenkov Telescope Array might detect the source.
publishDate 2011
dc.date.none.fl_str_mv 2011-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/99537
url http://sedici.unlp.edu.ar/handle/10915/99537
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/5210
info:eu-repo/semantics/altIdentifier/url/http://arxiv.org/abs/1011.2773v1
info:eu-repo/semantics/altIdentifier/issn/0037-9565
info:eu-repo/semantics/altIdentifier/arxiv/http://arxiv.org/abs/1011.2773v1
info:eu-repo/semantics/altIdentifier/arxiv/1011.2773v1
info:eu-repo/semantics/altIdentifier/hdl/11336/5210
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
420-424
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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