Gamma-ray emission from massive star forming regions

Recent radio observations support a picture for star formation where there is accretion of matter onto a central protostar with the ejection of molecular outflows that can affect the surrounding medium. The impact of a supersonic outflow on the ambient gas can produce a strong shock that could accel...

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Autores: Araudo, Anabella Teresa, Romero, Gustavo Esteban, Bosch Ramon, Valentí, Paredes, Josep Maria
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/27816
Acceso en línea:http://hdl.handle.net/11336/27816
Access Level:acceso abierto
Palabra clave:Gamma-ray emission
Massive stars
Nonthermal radiation mechanisms
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
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repository_id_str
spelling Gamma-ray emission from massive star forming regionsAraudo, Anabella TeresaRomero, Gustavo EstebanBosch Ramon, ValentíParedes, Josep MariaGamma-ray emissionMassive starsNonthermal radiation mechanismshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Recent radio observations support a picture for star formation where there is accretion of matter onto a central protostar with the ejection of molecular outflows that can affect the surrounding medium. The impact of a supersonic outflow on the ambient gas can produce a strong shock that could accelerate particles up to relativistic energies. A strong evidence of this has been the detection of non-thermal radio emission coming from the jet termination region of some young massive stars. In the present contribution, we study the possible high-energy emission due to the interaction of relativistic particles, electrons and protons, with the magnetic, photon and matter fields inside a giant molecular cloud. Electrons lose energy via relativistic Bremsstrahlung, synchrotron radiation and inverse Compton interactions, and protons cool mainly through inelastic collisions with atoms in the cloud. We conclude that some massive young stellar objects might be detectable at gamma-rays by next generation instruments, both satellite-borne and ground based.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 Planck Institut für Kernphysik; AlemaniaFil: Paredes, Josep Maria. Universidad de Barcelona; EspañaWorld Scientific2008-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/27816Araudo, Anabella Teresa; Romero, Gustavo Esteban; Bosch Ramon, Valentí; Paredes, Josep Maria; Gamma-ray emission from massive star forming regions ; World Scientific; International Journal of Modern Physics D; 17; 10; 9-2008; 1889-18940218-27181793-6594CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1142/S0218271808013534info:eu-repo/semantics/altIdentifier/url/http://www.worldscientific.com/doi/abs/10.1142/S0218271808013534info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:58:19Zoai:ri.conicet.gov.ar:11336/27816instacron: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:34982024-05-08 13:58:19.605CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Gamma-ray emission from massive star forming regions
title Gamma-ray emission from massive star forming regions
spellingShingle Gamma-ray emission from massive star forming regions
Araudo, Anabella Teresa
Gamma-ray emission
Massive stars
Nonthermal radiation mechanisms
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
title_short Gamma-ray emission from massive star forming regions
title_full Gamma-ray emission from massive star forming regions
title_fullStr Gamma-ray emission from massive star forming regions
title_full_unstemmed Gamma-ray emission from massive star forming regions
title_sort Gamma-ray emission from massive star forming regions
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.subject.none.fl_str_mv Gamma-ray emission
Massive stars
Nonthermal radiation mechanisms
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
topic Gamma-ray emission
Massive stars
Nonthermal radiation mechanisms
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
description Recent radio observations support a picture for star formation where there is accretion of matter onto a central protostar with the ejection of molecular outflows that can affect the surrounding medium. The impact of a supersonic outflow on the ambient gas can produce a strong shock that could accelerate particles up to relativistic energies. A strong evidence of this has been the detection of non-thermal radio emission coming from the jet termination region of some young massive stars. In the present contribution, we study the possible high-energy emission due to the interaction of relativistic particles, electrons and protons, with the magnetic, photon and matter fields inside a giant molecular cloud. Electrons lose energy via relativistic Bremsstrahlung, synchrotron radiation and inverse Compton interactions, and protons cool mainly through inelastic collisions with atoms in the cloud. We conclude that some massive young stellar objects might be detectable at gamma-rays by next generation instruments, both satellite-borne and ground based.
publishDate 2008
dc.date.none.fl_str_mv 2008-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/27816
Araudo, Anabella Teresa; Romero, Gustavo Esteban; Bosch Ramon, Valentí; Paredes, Josep Maria; Gamma-ray emission from massive star forming regions ; World Scientific; International Journal of Modern Physics D; 17; 10; 9-2008; 1889-1894
0218-2718
1793-6594
CONICET Digital
CONICET
url http://hdl.handle.net/11336/27816
identifier_str_mv Araudo, Anabella Teresa; Romero, Gustavo Esteban; Bosch Ramon, Valentí; Paredes, Josep Maria; Gamma-ray emission from massive star forming regions ; World Scientific; International Journal of Modern Physics D; 17; 10; 9-2008; 1889-1894
0218-2718
1793-6594
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1142/S0218271808013534
info:eu-repo/semantics/altIdentifier/url/http://www.worldscientific.com/doi/abs/10.1142/S0218271808013534
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
application/pdf
dc.publisher.none.fl_str_mv World Scientific
publisher.none.fl_str_mv World Scientific
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15.812429

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