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dc.contributor.author
del Palacio, Santiago
dc.contributor.author
Benaglia, Paula
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De Becker, M.
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Bosch Ramon, Valentí
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Romero, Gustavo Esteban
dc.date.available
2022-08-08T15:51:02Z
dc.date.issued
2022-01
dc.identifier.citation
del Palacio, Santiago; Benaglia, Paula; De Becker, M.; Bosch Ramon, Valentí; Romero, Gustavo Esteban; The non-thermal emission from the colliding-wind binary Apep; Csiro Publishing; Publications Of The Astronomical Society Of Australia; 39; 1-2022; 1-10
dc.identifier.issn
1323-3580
dc.identifier.uri
http://hdl.handle.net/11336/164581
dc.description.abstract
Therecently discovered massive binary system Apep is the most powerful synchrotron emitter among the known Galactic colliding-wind binaries. This makes this particular system of great interest to investigate stellar winds and the non-thermal processes associated with their shocks. This source was detected at various radio bands, and in addition the wind-collision region was resolved by means of very-long baseline interferometric observations. We use a non-thermal emission model for colliding-wind binaries to derive physical properties of this system. The observed morphology in the resolved maps allows us to estimate the system projection angle on the sky to be. The observed radio flux densities also allow us to characterise both the intrinsic synchrotron spectrum of the source and its modifications due to free-free absorption in the stellar winds at low frequencies; from this, we derive mass-loss rates of the stars of and. Finally, the broadband spectral energy distribution is calculated for different combinations of the remaining free parameters, namely the intensity of the magnetic field and the injected power in non-thermal particles. We show that the degeneracy of these two parameters can be solved with observations in the high-energy domain, most likely in the hard X-rays but also possibly in -rays under favourable conditions.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Csiro Publishing
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
OUTFLOWS
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RADIATION MECHANISMS: NON-THERMAL
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RELATIVISTIC PROCESSES
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STARS: MASSIVE
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STARS: WINDS
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
The non-thermal emission from the colliding-wind binary Apep
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-07-04T19:41:02Z
dc.journal.volume
39
dc.journal.pagination
1-10
dc.journal.pais
Australia
dc.description.fil
Fil: del Palacio, Santiago. 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: Benaglia, Paula. 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: De Becker, M.. Université de Liège; Bélgica
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Fil: Bosch Ramon, Valentí. Universidad de Barcelona; España
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.journal.title
Publications Of The Astronomical Society Of Australia
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1017/pasa.2021.60
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/ark/https://arxiv.org/pdf/2111.07442.pdf
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