Investigating Particle Acceleration in Protostellar Jets: The Triple Radio Continuum Source in Serpens

While most protostellar jets present free-free emission at radio wavelengths, synchrotron emission has also been proposed to be present in a handful of these objects. The presence of nonthermal emission has been inferred by negative spectral indices at centimeter wavelengths. In one case (the HH 80-...

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Autores: Rodríguez-Kamenetzky, Adriana, Carrasco-González, Carlos, Araudo, Anabella, Torrelles, José M., Anglada Pons, Guillem Josep, Martí, Josep, Rodríguez, Luis F., Valotto, Carlos
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/381041
Acesso em linha:http://hdl.handle.net/10261/381041
Access Level:acceso abierto
Palavra-chave:Acceleration of particles
ISM: jets and outflows
ISM: kinematics and dynamics
ISM: magnetic fields
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spelling Investigating Particle Acceleration in Protostellar Jets: The Triple Radio Continuum Source in SerpensRodríguez-Kamenetzky, AdrianaCarrasco-González, CarlosAraudo, AnabellaTorrelles, José M.Anglada Pons, Guillem JosepMartí, JosepRodríguez, Luis F.Valotto, CarlosAcceleration of particlesISM: jets and outflowsISM: kinematics and dynamicsISM: magnetic fieldsWhile most protostellar jets present free-free emission at radio wavelengths, synchrotron emission has also been proposed to be present in a handful of these objects. The presence of nonthermal emission has been inferred by negative spectral indices at centimeter wavelengths. In one case (the HH 80-81 jet arising from a massive protostar), its synchrotron nature was confirmed by the detection of linearly polarized radio emission. One of the main consequences of these results is that synchrotron emission implies the presence of relativistic particles among the nonrelativistic material of these jets. Therefore, an acceleration mechanism should be taking place. The most probable scenario is that particles are accelerated when the jets strongly impact against the dense envelope surrounding the protostar. Here we present an analysis of radio observations obtained with the Very Large Array of the triple radio source in the Serpens star-forming region. This object is known to be a radio jet arising from an intermediate-mass protostar. It is also one of the first protostellar jets where the presence of nonthermal emission was proposed. We analyze the dynamics of the jet and the nature of the emission and discuss these issues in the context of the physical parameters of the jet and the particle acceleration phenomenon. © 2016. The American Astronomical Society. All rights reserved.A.R.-K. and C.C.-G. acknowledge support by UNAM-DGAPA-PAPIIT grant number IA101214 and financial support from the MINCyT-CONACyT ME/13/47 grant, corresponding to the Bilateral Cooperation Program. G.A. and J.M.T. acknowledge support from MICINN (Spain) AYA2011-3O228-CO3 and AYA2014-57369-C3 grants (co-funded with FEDER funds). A.T.A. acknowledges support from the UK Science and Technology Facilities Council under grant No. ST/K00106X/1.IOP PublishingUniversidad Nacional Autónoma de MéxicoConsejo Nacional de Ciencia y Tecnología (México)Ministerio de Ciencia e Innovación (España)European CommissionScience and Technology Facilities Council (UK)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2025202520162025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/381041reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MICINN//AYA2011-30228-C03info:eu-repo/grantAgreement/MINECO//AYA2014-57369-C3-3-Phttp://dx.doi.org/10.3847/0004-637X/818/1/27Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3810412026-05-22T06:33:51Z
dc.title.none.fl_str_mv Investigating Particle Acceleration in Protostellar Jets: The Triple Radio Continuum Source in Serpens
title Investigating Particle Acceleration in Protostellar Jets: The Triple Radio Continuum Source in Serpens
spellingShingle Investigating Particle Acceleration in Protostellar Jets: The Triple Radio Continuum Source in Serpens
Rodríguez-Kamenetzky, Adriana
Acceleration of particles
ISM: jets and outflows
ISM: kinematics and dynamics
ISM: magnetic fields
title_short Investigating Particle Acceleration in Protostellar Jets: The Triple Radio Continuum Source in Serpens
title_full Investigating Particle Acceleration in Protostellar Jets: The Triple Radio Continuum Source in Serpens
title_fullStr Investigating Particle Acceleration in Protostellar Jets: The Triple Radio Continuum Source in Serpens
title_full_unstemmed Investigating Particle Acceleration in Protostellar Jets: The Triple Radio Continuum Source in Serpens
title_sort Investigating Particle Acceleration in Protostellar Jets: The Triple Radio Continuum Source in Serpens
dc.creator.none.fl_str_mv Rodríguez-Kamenetzky, Adriana
Carrasco-González, Carlos
Araudo, Anabella
Torrelles, José M.
Anglada Pons, Guillem Josep
Martí, Josep
Rodríguez, Luis F.
Valotto, Carlos
author Rodríguez-Kamenetzky, Adriana
author_facet Rodríguez-Kamenetzky, Adriana
Carrasco-González, Carlos
Araudo, Anabella
Torrelles, José M.
Anglada Pons, Guillem Josep
Martí, Josep
Rodríguez, Luis F.
Valotto, Carlos
author_role author
author2 Carrasco-González, Carlos
Araudo, Anabella
Torrelles, José M.
Anglada Pons, Guillem Josep
Martí, Josep
Rodríguez, Luis F.
Valotto, Carlos
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Nacional Autónoma de México
Consejo Nacional de Ciencia y Tecnología (México)
Ministerio de Ciencia e Innovación (España)
European Commission
Science and Technology Facilities Council (UK)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Acceleration of particles
ISM: jets and outflows
ISM: kinematics and dynamics
ISM: magnetic fields
topic Acceleration of particles
ISM: jets and outflows
ISM: kinematics and dynamics
ISM: magnetic fields
description While most protostellar jets present free-free emission at radio wavelengths, synchrotron emission has also been proposed to be present in a handful of these objects. The presence of nonthermal emission has been inferred by negative spectral indices at centimeter wavelengths. In one case (the HH 80-81 jet arising from a massive protostar), its synchrotron nature was confirmed by the detection of linearly polarized radio emission. One of the main consequences of these results is that synchrotron emission implies the presence of relativistic particles among the nonrelativistic material of these jets. Therefore, an acceleration mechanism should be taking place. The most probable scenario is that particles are accelerated when the jets strongly impact against the dense envelope surrounding the protostar. Here we present an analysis of radio observations obtained with the Very Large Array of the triple radio source in the Serpens star-forming region. This object is known to be a radio jet arising from an intermediate-mass protostar. It is also one of the first protostellar jets where the presence of nonthermal emission was proposed. We analyze the dynamics of the jet and the nature of the emission and discuss these issues in the context of the physical parameters of the jet and the particle acceleration phenomenon. © 2016. The American Astronomical Society. All rights reserved.
publishDate 2016
dc.date.none.fl_str_mv 2016
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/381041
url http://hdl.handle.net/10261/381041
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MICINN//AYA2011-30228-C03
info:eu-repo/grantAgreement/MINECO//AYA2014-57369-C3-3-P
http://dx.doi.org/10.3847/0004-637X/818/1/27
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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