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Abstract:

Different types of extragalactic objects are known to produce TeV gamma-rays. Some of these objects are the most probable candidates to accelerate cosmic rays up to 1020 eV. It is very well known that gamma-rays can be produced as a result of the cosmic ray propagation through the intergalactic medium. These gamma-rays contribute to the total flux observed in the direction of the source. In this paper we propose a new method to derive an upper limit on the cosmic-ray luminosity of an individual source based on the measured upper limit on the integral flux of GeV-TeV gamma-rays. We show how it is possible to calculate an upper limit on the cosmic-ray luminosity of a particular source and we explore the parameter space in which the current GeV-TeV gamma-ray measurements can offer a useful determination. We study in detail two particular sources, Pictor A and NGC 7469, and we calculate the upper limit on the proton luminosity of each source based on the upper limit on the integral gamma-ray flux measured by the H.E.S.S. telescopes. © 2013 IOP Publishing Ltd and Sissa Medialab srl.

Registro:

Documento: Artículo
Título:An upper limit on the cosmic-ray luminosity of individual sources from gamma-ray observations
Autor:Supanitsky, A.D.; De Souza, V.
Filiación:Instituto de Astronomía y Física Del Espacio (IAFE), CONICET-UBA, Argentina
Instituto de Física de São Carlos, Universidade de São Paulo, Brazil
Palabras clave:ultra high energy cosmic rays, gamma ray experiments, gamma ray theory
Año:2013
Volumen:2013
Número:12
DOI: http://dx.doi.org/10.1088/1475-7516/2013/12/023
Título revista:Journal of Cosmology and Astroparticle Physics
Título revista abreviado:J. Cosmol. Astroparticle Phys.
ISSN:14757516
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14757516_v2013_n12_p_Supanitsky

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Citas:

---------- APA ----------
Supanitsky, A.D. & De Souza, V. (2013) . An upper limit on the cosmic-ray luminosity of individual sources from gamma-ray observations. Journal of Cosmology and Astroparticle Physics, 2013(12).
http://dx.doi.org/10.1088/1475-7516/2013/12/023
---------- CHICAGO ----------
Supanitsky, A.D., De Souza, V. "An upper limit on the cosmic-ray luminosity of individual sources from gamma-ray observations" . Journal of Cosmology and Astroparticle Physics 2013, no. 12 (2013).
http://dx.doi.org/10.1088/1475-7516/2013/12/023
---------- MLA ----------
Supanitsky, A.D., De Souza, V. "An upper limit on the cosmic-ray luminosity of individual sources from gamma-ray observations" . Journal of Cosmology and Astroparticle Physics, vol. 2013, no. 12, 2013.
http://dx.doi.org/10.1088/1475-7516/2013/12/023
---------- VANCOUVER ----------
Supanitsky, A.D., De Souza, V. An upper limit on the cosmic-ray luminosity of individual sources from gamma-ray observations. J. Cosmol. Astroparticle Phys. 2013;2013(12).
http://dx.doi.org/10.1088/1475-7516/2013/12/023