INVESTIGADORES
ORELLANA Mariana Dominga
congresos y reuniones científicas
Título:
A hadronic model for the high-energy gamma-ray emission of LS I +61 303
Autor/es:
MARIANA ORELLANA; GUSTAVO E. ROMERO
Lugar:
La Plata - Argentina
Reunión:
Congreso; 48 Reunión Anual de la Asociación Argentina de Astronomía; 2005
Institución organizadora:
Asociación Argentina de Astronomía
Resumen:
Accreting X-ray binary systems that eject collimated relativistic outflows or jets are called microquasars. Recently microquasars had been confirmed to be high energy gamma-ray sources, though the origin of this high energy emission is still debated. We present a hadronic model for gamma-ray production in the microquasar LS I +61 303. The system is formed by a neutron star that acrettes matter from the dense and slow equatorial wind of the Be primary star. We calculate the gamma-ray emission originated in pp interactions between relativistic protons in the jet and cold protons from the wind. After taking into account opacity effects on the gamma-rays introduced by the different photons fields, we present high-energy spectral predictions that can be tested with the new generation Cherenkov telescope MAGIC.
