Frequency Dependent Polarization in Blazars
It is argued that the observed properties of the intrinsically frequency-dependent polarization (FDP) in blazars suggest a one rather than a multi-component source model. Assuming a synchrotron origin of the emitted radiation, a well ordered magnetic field and a sharp break or cutoff in the electron distribution are both obligatory in such models; non-uniform pitch angle distribution or synchrotron losses enhance the resulting FDP. It is emphasized that the existence of such conditions in blazars finds observational support. Furthermore, a specific model is presented in order to illustrate the salient features of one-component models.
Unable to display preview. Download preview PDF.
- Impey, C.D., Brand, P.W.J.L., Wolstencroft, R.D. and Williams, P.M., M.N.R.A.S. 200, 19; 1984, M.N.R.A.S. 209, 245.Google Scholar