Non-thermal radiation associated with massive stars

Autores
Palacio, Santiago del; Bosch Ramón, V.; Romero, Gustavo Esteban
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Massive stars launch powerful, supersonic winds which carry a huge kinetic power. These can generate strong shocks capable of accelerating relativistic particles. Such particles can emit broadband nonthermal radiation. Here we present an overview of the investigations we carried out focused on the non-thermal emission produced in systems involving massive stars (stellar bubbles, stellar bow shocks, colliding-wind binaries, and microquasars). Our main goal is to determine the cosmic-ray acceleration efficiency in these systems, the conditions upon which they can become non-thermal emitters, and the characteristics of their magnetic fields. We highlight the importance of developing broadband radiation models and their virtuous feedback with multifrequency observational campaigns comprising from radio wavelengths up to high energies (X-rays and 7 rays).
Las estrellas de gran masa despiden vientos supersónicos con una enorme potencia cinética capaces de acelerar partículas relativistas. Dichas partículas pueden emitir radiación no térmica a lo largo de todo el espectro electromagnético. Aquí presentamos un resumen de nuestras investigaciones de la emisión no térmica producida en sistemas con estrellas de gran masa (burbujas estelares, bow shocks, binarias con colisión de vientos y microcuásares). Nuestro objetivo central es determinar la eficiencia de aceleración de rayos cósmicos en estos sistemas, bajo qué condiciones son capaces de ser emisores no térmicos y las características de sus campos magnéticos. Enfatizamos la relevancia del desarrollo de modelos radiativos y su retroalimentación positiva con campañas observacionales multi-frecuencia desde ondas de radio hasta altas energías (rayos X y rayos 7).
Asociación Argentina de Astronomía
Materia
Ciencias Astronómicas
stars: massive
acceleration of particles
radiation mechanisms: non-thermal
gamma rays: stars
X-rays: stars
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:10915/176394

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network_name_str SEDICI (UNLP)
spelling Non-thermal radiation associated with massive starsPalacio, Santiago delBosch Ramón, V.Romero, Gustavo EstebanCiencias Astronómicasstars: massiveacceleration of particlesradiation mechanisms: non-thermalgamma rays: starsX-rays: starsMassive stars launch powerful, supersonic winds which carry a huge kinetic power. These can generate strong shocks capable of accelerating relativistic particles. Such particles can emit broadband nonthermal radiation. Here we present an overview of the investigations we carried out focused on the non-thermal emission produced in systems involving massive stars (stellar bubbles, stellar bow shocks, colliding-wind binaries, and microquasars). Our main goal is to determine the cosmic-ray acceleration efficiency in these systems, the conditions upon which they can become non-thermal emitters, and the characteristics of their magnetic fields. We highlight the importance of developing broadband radiation models and their virtuous feedback with multifrequency observational campaigns comprising from radio wavelengths up to high energies (X-rays and 7 rays).Las estrellas de gran masa despiden vientos supersónicos con una enorme potencia cinética capaces de acelerar partículas relativistas. Dichas partículas pueden emitir radiación no térmica a lo largo de todo el espectro electromagnético. Aquí presentamos un resumen de nuestras investigaciones de la emisión no térmica producida en sistemas con estrellas de gran masa (burbujas estelares, bow shocks, binarias con colisión de vientos y microcuásares). Nuestro objetivo central es determinar la eficiencia de aceleración de rayos cósmicos en estos sistemas, bajo qué condiciones son capaces de ser emisores no térmicos y las características de sus campos magnéticos. Enfatizamos la relevancia del desarrollo de modelos radiativos y su retroalimentación positiva con campañas observacionales multi-frecuencia desde ondas de radio hasta altas energías (rayos X y rayos 7).Asociación Argentina de Astronomía2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf246-252http://sedici.unlp.edu.ar/handle/10915/176394enginfo:eu-repo/semantics/altIdentifier/issn/1669-9521info: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:UNLP2025-09-29T11:47:38Zoai:sedici.unlp.edu.ar:10915/176394Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:47:38.582SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Non-thermal radiation associated with massive stars
title Non-thermal radiation associated with massive stars
spellingShingle Non-thermal radiation associated with massive stars
Palacio, Santiago del
Ciencias Astronómicas
stars: massive
acceleration of particles
radiation mechanisms: non-thermal
gamma rays: stars
X-rays: stars
title_short Non-thermal radiation associated with massive stars
title_full Non-thermal radiation associated with massive stars
title_fullStr Non-thermal radiation associated with massive stars
title_full_unstemmed Non-thermal radiation associated with massive stars
title_sort Non-thermal radiation associated with massive stars
dc.creator.none.fl_str_mv Palacio, Santiago del
Bosch Ramón, V.
Romero, Gustavo Esteban
author Palacio, Santiago del
author_facet Palacio, Santiago del
Bosch Ramón, V.
Romero, Gustavo Esteban
author_role author
author2 Bosch Ramón, V.
Romero, Gustavo Esteban
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
stars: massive
acceleration of particles
radiation mechanisms: non-thermal
gamma rays: stars
X-rays: stars
topic Ciencias Astronómicas
stars: massive
acceleration of particles
radiation mechanisms: non-thermal
gamma rays: stars
X-rays: stars
dc.description.none.fl_txt_mv Massive stars launch powerful, supersonic winds which carry a huge kinetic power. These can generate strong shocks capable of accelerating relativistic particles. Such particles can emit broadband nonthermal radiation. Here we present an overview of the investigations we carried out focused on the non-thermal emission produced in systems involving massive stars (stellar bubbles, stellar bow shocks, colliding-wind binaries, and microquasars). Our main goal is to determine the cosmic-ray acceleration efficiency in these systems, the conditions upon which they can become non-thermal emitters, and the characteristics of their magnetic fields. We highlight the importance of developing broadband radiation models and their virtuous feedback with multifrequency observational campaigns comprising from radio wavelengths up to high energies (X-rays and 7 rays).
Las estrellas de gran masa despiden vientos supersónicos con una enorme potencia cinética capaces de acelerar partículas relativistas. Dichas partículas pueden emitir radiación no térmica a lo largo de todo el espectro electromagnético. Aquí presentamos un resumen de nuestras investigaciones de la emisión no térmica producida en sistemas con estrellas de gran masa (burbujas estelares, bow shocks, binarias con colisión de vientos y microcuásares). Nuestro objetivo central es determinar la eficiencia de aceleración de rayos cósmicos en estos sistemas, bajo qué condiciones son capaces de ser emisores no térmicos y las características de sus campos magnéticos. Enfatizamos la relevancia del desarrollo de modelos radiativos y su retroalimentación positiva con campañas observacionales multi-frecuencia desde ondas de radio hasta altas energías (rayos X y rayos 7).
Asociación Argentina de Astronomía
description Massive stars launch powerful, supersonic winds which carry a huge kinetic power. These can generate strong shocks capable of accelerating relativistic particles. Such particles can emit broadband nonthermal radiation. Here we present an overview of the investigations we carried out focused on the non-thermal emission produced in systems involving massive stars (stellar bubbles, stellar bow shocks, colliding-wind binaries, and microquasars). Our main goal is to determine the cosmic-ray acceleration efficiency in these systems, the conditions upon which they can become non-thermal emitters, and the characteristics of their magnetic fields. We highlight the importance of developing broadband radiation models and their virtuous feedback with multifrequency observational campaigns comprising from radio wavelengths up to high energies (X-rays and 7 rays).
publishDate 2021
dc.date.none.fl_str_mv 2021
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
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format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/176394
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dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1669-9521
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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)
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246-252
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instname:Universidad Nacional de La Plata
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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