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Revista científica

A model for gamma-ray sources in the galactic halo

Vila, Gabriela Soledad et al · Asociación Argentina de Astronomía · 2007

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Author / responsible party
Vila, Gabriela Soledad et al
Publisher
Asociación Argentina de Astronomía
Year
2007
ISSN
0571-3285
ISSN
0571-3285
Language
English

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Among the galactic gamma-ray sources detected by the EGRET instrument there exists a group located at high galactic latitudes, distributed as a halo around the galactic centre. These sources are X-ray quiet with soft spectra at gamma-rays. Their variability on short timescales indicates the presence of a compact object. In this work we present a model for gamma-ray halo sources based on hadronic processes in the jet of a low-mass microquasar. Several interaction mechanisms between relativistic protons and local fields are taken into account. We also estimate the contribution to the spectrum of primary leptons. Finally, we compare our results with the general properties of the halo gamma-ray sources and make some predictions for the forthcoming satellite-borne gamma-ray telescopes. Fil: Vila, Gabriela Soledad. 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 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. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina

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APA 7

Vila, G. S. E. A. (2007). A model for gamma-ray sources in the galactic halo. http://hdl.handle.net/11336/230432

MLA

Vila, Gabriela Soledad et al. "A model for gamma-ray sources in the galactic halo." 2007. http://hdl.handle.net/11336/230432.

Chicago

Vila, Gabriela Soledad et al. 2007. "A model for gamma-ray sources in the galactic halo.". http://hdl.handle.net/11336/230432.

Harvard

Vila, G. S. E. A. 2007, A model for gamma-ray sources in the galactic halo, Asociación Argentina de Astronomía, available at: http://hdl.handle.net/11336/230432 [Accessed 10 Aug. 2026].

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Title
A model for gamma-ray sources in the galactic halo
Author / contributors
Vila, Gabriela Soledad et al
Publisher
Asociación Argentina de Astronomía
Publication year
2007
ISSN
0571-3285
ISSN
0571-3285
Language
English

Subjects

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Gamma-rays; Galactic halo; EGRET instrument; Microquasars; https://purl.org/becyt/ford/1.3; https://purl.org/becyt/ford/1
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