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Título: High-energy gamma-ray emission from the inner jet of LS I +61 303: the hadronic contribution revisited
Autor: Orellana, Mariana D.
Romero, Gustavo E.
Fecha de publicación: abr-2007
Citación: Orellana, Mariana D. & Romero, Gustavo E. (2007). High-energy gamma-ray emission from the inner jet of LS I +61 303: the hadronic contribution revisited. Springer; Astrophysics And Space Science; 309; 1-4; 333-338
Revista: Astrophysics And Space Science
Resumen: LS I +61 303 has been detected by the Cherenkov telescope MAGIC at very high energies, presenting a variable flux along the orbital motion with a maximum clearly separated from the periastron passage. In the light of the new observational constraints, we revisit the discussion of the production of high-energy gamma rays from particle interactions in the inner jet of this system. The hadronic contribution could represent a major fraction of the TeV emission detected from this source. The spectral energy distribution resulting from pp interactions is recalculated. Opacity effects introduced by the photon fields of the primary star and the stellar decretion disk are shown to be essential in shaping the high-energy gamma-ray light curve at energies close to 200 GeV. We also present results of Monte Carlo simulations of the electromagnetic cascades developed very close to the periastron passage. We conclude that a hadronic microquasar model for the gamma-ray emission in LS I +61 303 can reproduce the main features of its observed highenergy γ -ray flux.
Identificador DOI: http://dx.doi.org/10.1007/s10509-007-9460-5
URI: http://hdl.handle.net/11336/26937
https://link.springer.com/article/10.1007%2Fs10509-007-9460-5
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2825
ISSN: 0004-640X
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Este documento es resultado del financiamiento otorgado por el Estado Nacional, por lo tanto queda sujeto al cumplimiento de la Ley N° 26.899