IAR 05382
INSTITUTO ARGENTINO DE RADIOASTRONOMIA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Spectral energy distribution, polarization, and synthetic radio maps of Cygnus X-1: a lepto-hadronic jet model
Autor/es:
PEPE CAROLINA; VILA GABRIELA S.; ROMERO GUSTAVO E.
Lugar:
La Plata
Reunión:
Congreso; Fifth Meeting on High-Energy Phenomena in Relativistic Outflows (HEPRO V); 2015
Institución organizadora:
Grupo de Astrofísica Relativista y Radioastronomía (GARRA, IAR-CONICET)
Resumen:
In this work we combine SEDs, radio maps and polarization observationsto understand the emission mechanisms in Cygnus X-1. Our radiative modelindicates that the MeV emission originates in the jet and that all the veryhigh-energy emission is from hadronic origin. We also performed a syntheticradio map that suggests that our description of the magnetic field should beimproved, since it leads to a very compact emission region. In order to choose the most suitable magnetic field geometry, we investigated the polarization in X-rays and we found that a very simple geometry can explain the high levelsof polarization reported by other authors.
