Desde Mayo 09, 2017 13:15 hasta Mayo 09, 2017 13:45
En Seminar Room
The broadband light curves of the flat spectrum radio quasar (FSRQ) 3C 273 obtained between September 2008 and August 2012, were analysed. The light curves covered a wide range of frequencies from radio to gamma-ray emission. We used the discrete correlation function (DCF) to search for correlation between light curves at different frequencies. We found a correlation between the gamma-ray emission and the radio mm-emission, as well as with the optical polarisation, indicating thus a non-thermal origin for the gamma-ray emission. From the time lags we calculated from the correlation results, we obtained the relative separation distance between the gamma-ray and the radio emission regions. We observed two componenets for the X-ray emission, coming from two different regions in the jet.