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dc.contributor.author
Rodríguez Kamenetzky, Adriana Raquel
dc.contributor.author
Carrasco Gonzalez, Carlos Eugenio
dc.contributor.author
Araudo, Anabella Teresa
dc.contributor.author
Romero, Gustavo Esteban
dc.contributor.author
Torrelles, José M.
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Rodríguez, Luis F.
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Anglada, Guillem
dc.contributor.author
Martí, Josep
dc.contributor.author
Perucho, Manel
dc.contributor.author
Valotto, Carlos Alberto
dc.date.available
2018-11-21T17:03:18Z
dc.date.issued
2017-12
dc.identifier.citation
Rodríguez Kamenetzky, Adriana Raquel; Carrasco Gonzalez, Carlos Eugenio; Araudo, Anabella Teresa; Romero, Gustavo Esteban; Torrelles, José M.; et al.; The Highly Collimated Radio Jet of HH 80-81: Structure and Nonthermal Emission; IOP Publishing; Astrophysical Journal; 851; 1; 12-2017; 1-16
dc.identifier.issn
0004-637X
dc.identifier.uri
http://hdl.handle.net/11336/64850
dc.description.abstract
Radio emission from protostellar jets is usually dominated by free-free emission from thermal electrons. However, in some cases, it has been proposed that nonthermal emission could also be present. This additional contribution from nonthermal emission has been inferred through negative spectral indices at centimeter wavelengths in some regions of the radio jets. In the case of HH 80-81, one of the most powerful protostellar jets known, linearly polarized emission has also been detected, revealing that the nonthermal emission is of synchrotron nature from a population of relativistic particles in the jet. This result implies that an acceleration mechanism should be taking place in some parts of the jet. Here, we present new high sensitivity and high angular resolution radio observations at several wavelengths (in the 3-20 cm range) of the HH 80-81 radio jet. These new observations represent an improvement in sensitivity and angular resolution by a factor of ∼10 with respect to previous observations. This allows us to resolve the morphology of the radio jet and to study the different emission mechanisms involved through spectral index maps. We conclude that synchrotron emission in this jet arises from an extended component detected at low frequencies and from the termination points of the jet, where strong shocks against the ambient medium can produce efficient particle acceleration.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Acceleration of Particles
dc.subject
Ism: Jets And Outflows
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Stars: Formation
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
The Highly Collimated Radio Jet of HH 80-81: Structure and Nonthermal Emission
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-10-29T17:01:20Z
dc.journal.volume
851
dc.journal.number
1
dc.journal.pagination
1-16
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Rodríguez Kamenetzky, Adriana Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Instituto de Radioastronomía y Astrofísica; México
dc.description.fil
Fil: Carrasco Gonzalez, Carlos Eugenio. Instituto de Radioastronomía y Astrofísica; México
dc.description.fil
Fil: Araudo, Anabella Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Astronomical Institute of the Academy of Sciences; República Checa
dc.description.fil
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
dc.description.fil
Fil: Torrelles, José M.. Consejo Superior de Investigaciones Científicas; España
dc.description.fil
Fil: Rodríguez, Luis F.. Instituto de Radioastronomía y Astrofísica; México
dc.description.fil
Fil: Anglada, Guillem. Consejo Superior de Investigaciones Científicas; España
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Fil: Martí, Josep. Universidad de Jaén; España
dc.description.fil
Fil: Perucho, Manel. Universidad de Valencia; España
dc.description.fil
Fil: Valotto, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
dc.journal.title
Astrophysical Journal
dc.relation.isreferencedin
info:eu-repo/semantics/reference/doi/10.3847/1538-4357/aa9895
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.3847/1538-4357/aa9895
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1711.02554
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.3847/1538-4357/aa9895
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