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dc.contributor.author
del Palacio, Santiago  
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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  
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Fil: De Becker, M.. Université de Liège; Bélgica  
dc.description.fil
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  
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info:eu-repo/semantics/altIdentifier/ark/https://arxiv.org/pdf/2111.07442.pdf