Non-thermal emission from massive YSOs: exploring the spectrum at high energies

Autores
Araudo, Anabella Teresa; Romero, Gustavo Esteban; Bosch Ramon, Valentí; Paredes, Josep Maria
Año de publicación
2009
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Thermal radio and X-ray emission has been traditionally associated with the formation of stars. However, in recent years, non-thermal radiation from massive star forming regions has been detected. Synchrotron radio emission and non-thermal X-rays from the outflows of massive young stellar objects (YSOs) provide evidence of the presence of relativistic particles in these sources. In YSOs, the acceleration of particles is likely produced where the thermal jet impacts on the surrounding medium and a shock wave is formed. Thus, particles might be accelerated up to relativistic energies through a Fermi-I type mechanism. Relativistic electrons and protons can interact with thermal particles and photons, producing then gamma-rays. These energetic photons could be detected by the new generation of instruments, making massive YSOs a new population of gamma-ray surces. In the present contribution we briefly describe some massive star forming regions from which non-thermal radio emission has been detected. In addition, we present a general model for high-energy radiation from the massive YSOs embedded in these regions. We take into account both leptonic and hadronic interactions of particles accelerated at the termination points of the collimated outflows ejected from the protostar.
Fil: Araudo, Anabella Teresa. 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: Bosch Ramon, Valentí. Max Plank Institut für Kernphysik; Alemania
Fil: Paredes, Josep Maria. Universidad de Barcelona; España
First International School on Astronomy and Geophysics: Compact Objects and their Emission
La Plata
Argentina
Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas
Instituto Argentino de Radioastronomía
Materia
X-ray emission
Synchrotron radio emission
Massive 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:11336/231480
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Non-thermal emission from massive YSOs: exploring the spectrum at high energiesAraudo, Anabella TeresaRomero, Gustavo EstebanBosch Ramon, ValentíParedes, Josep MariaX-ray emissionSynchrotron radio emissionMassive starshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Thermal radio and X-ray emission has been traditionally associated with the formation of stars. However, in recent years, non-thermal radiation from massive star forming regions has been detected. Synchrotron radio emission and non-thermal X-rays from the outflows of massive young stellar objects (YSOs) provide evidence of the presence of relativistic particles in these sources. In YSOs, the acceleration of particles is likely produced where the thermal jet impacts on the surrounding medium and a shock wave is formed. Thus, particles might be accelerated up to relativistic energies through a Fermi-I type mechanism. Relativistic electrons and protons can interact with thermal particles and photons, producing then gamma-rays. These energetic photons could be detected by the new generation of instruments, making massive YSOs a new population of gamma-ray surces. In the present contribution we briefly describe some massive star forming regions from which non-thermal radio emission has been detected. In addition, we present a general model for high-energy radiation from the massive YSOs embedded in these regions. We take into account both leptonic and hadronic interactions of particles accelerated at the termination points of the collimated outflows ejected from the protostar.Fil: Araudo, Anabella Teresa. 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: Bosch Ramon, Valentí. Max Plank Institut für Kernphysik; AlemaniaFil: Paredes, Josep Maria. Universidad de Barcelona; EspañaFirst International School on Astronomy and Geophysics: Compact Objects and their EmissionLa PlataArgentinaUniversidad Nacional de La Plata. Facultad de Ciencias Astronómicas y GeofísicasInstituto Argentino de RadioastronomíaPaideiaAndruchow, IleanaRomero, Gustavo Esteban2009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/231480Non-thermal emission from massive YSOs: exploring the spectrum at high energies; First International School on Astronomy and Geophysics: Compact Objects and their Emission; La Plata; Argentina; 2008; 1-79789503405550CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.iar.unlp.edu.ar/biblio/cgi-bin/opacmarc/wxis?IsisScript=opac/xis/opac.xis&task=BIB-RECORD&db=astro&cn=000574info:eu-repo/semantics/altIdentifier/url/https://bibpublicaunlp.wordpress.com/2012/09/28/first-la-plata-international-school/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:53:05Zoai:ri.conicet.gov.ar:11336/231480instacron: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 14:53:06.032CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Non-thermal emission from massive YSOs: exploring the spectrum at high energies
title Non-thermal emission from massive YSOs: exploring the spectrum at high energies
spellingShingle Non-thermal emission from massive YSOs: exploring the spectrum at high energies
Araudo, Anabella Teresa
X-ray emission
Synchrotron radio emission
Massive stars
title_short Non-thermal emission from massive YSOs: exploring the spectrum at high energies
title_full Non-thermal emission from massive YSOs: exploring the spectrum at high energies
title_fullStr Non-thermal emission from massive YSOs: exploring the spectrum at high energies
title_full_unstemmed Non-thermal emission from massive YSOs: exploring the spectrum at high energies
title_sort Non-thermal emission from massive YSOs: exploring the spectrum at high energies
dc.creator.none.fl_str_mv Araudo, Anabella Teresa
Romero, Gustavo Esteban
Bosch Ramon, Valentí
Paredes, Josep Maria
author Araudo, Anabella Teresa
author_facet Araudo, Anabella Teresa
Romero, Gustavo Esteban
Bosch Ramon, Valentí
Paredes, Josep Maria
author_role author
author2 Romero, Gustavo Esteban
Bosch Ramon, Valentí
Paredes, Josep Maria
author2_role author
author
author
dc.contributor.none.fl_str_mv Andruchow, Ileana
Romero, Gustavo Esteban
dc.subject.none.fl_str_mv X-ray emission
Synchrotron radio emission
Massive stars
topic X-ray emission
Synchrotron radio emission
Massive 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 Thermal radio and X-ray emission has been traditionally associated with the formation of stars. However, in recent years, non-thermal radiation from massive star forming regions has been detected. Synchrotron radio emission and non-thermal X-rays from the outflows of massive young stellar objects (YSOs) provide evidence of the presence of relativistic particles in these sources. In YSOs, the acceleration of particles is likely produced where the thermal jet impacts on the surrounding medium and a shock wave is formed. Thus, particles might be accelerated up to relativistic energies through a Fermi-I type mechanism. Relativistic electrons and protons can interact with thermal particles and photons, producing then gamma-rays. These energetic photons could be detected by the new generation of instruments, making massive YSOs a new population of gamma-ray surces. In the present contribution we briefly describe some massive star forming regions from which non-thermal radio emission has been detected. In addition, we present a general model for high-energy radiation from the massive YSOs embedded in these regions. We take into account both leptonic and hadronic interactions of particles accelerated at the termination points of the collimated outflows ejected from the protostar.
Fil: Araudo, Anabella Teresa. 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: Bosch Ramon, Valentí. Max Plank Institut für Kernphysik; Alemania
Fil: Paredes, Josep Maria. Universidad de Barcelona; España
First International School on Astronomy and Geophysics: Compact Objects and their Emission
La Plata
Argentina
Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas
Instituto Argentino de Radioastronomía
description Thermal radio and X-ray emission has been traditionally associated with the formation of stars. However, in recent years, non-thermal radiation from massive star forming regions has been detected. Synchrotron radio emission and non-thermal X-rays from the outflows of massive young stellar objects (YSOs) provide evidence of the presence of relativistic particles in these sources. In YSOs, the acceleration of particles is likely produced where the thermal jet impacts on the surrounding medium and a shock wave is formed. Thus, particles might be accelerated up to relativistic energies through a Fermi-I type mechanism. Relativistic electrons and protons can interact with thermal particles and photons, producing then gamma-rays. These energetic photons could be detected by the new generation of instruments, making massive YSOs a new population of gamma-ray surces. In the present contribution we briefly describe some massive star forming regions from which non-thermal radio emission has been detected. In addition, we present a general model for high-energy radiation from the massive YSOs embedded in these regions. We take into account both leptonic and hadronic interactions of particles accelerated at the termination points of the collimated outflows ejected from the protostar.
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Congreso
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/11336/231480
Non-thermal emission from massive YSOs: exploring the spectrum at high energies; First International School on Astronomy and Geophysics: Compact Objects and their Emission; La Plata; Argentina; 2008; 1-7
9789503405550
CONICET Digital
CONICET
url http://hdl.handle.net/11336/231480
identifier_str_mv Non-thermal emission from massive YSOs: exploring the spectrum at high energies; First International School on Astronomy and Geophysics: Compact Objects and their Emission; La Plata; Argentina; 2008; 1-7
9789503405550
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/url/https://bibpublicaunlp.wordpress.com/2012/09/28/first-la-plata-international-school/
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.publisher.none.fl_str_mv Paideia
publisher.none.fl_str_mv Paideia
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instname:Consejo Nacional de Investigaciones Científicas y Técnicas
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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 12.891075

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