Y. X. Jane Yap (NTHU), K. Wu (UCL-MSSL), A.K.H Kong (NTHU)
This talk will focus on the high-energy emission mechanism of blazar, in which both the leptonic and hadronic model will be discussed. Traditionally, the one-zone leptonic synchrotron-self-Compton (SSC) is used to explain the high energy emission of blazar. On the other hand, the hadronic process receives less attention due to the complication in simulating the energy dependence of the cross section. The increased number of blazar spectrums poses a question about the origin of the high-energy emission since both models are able to reproduce most of the observations. We will discuss the radiation processes and their signatures in each model, for instance, synchrotron and SSC in the leptonic, and in the hadronic, proton-synchrotron, photo-pion process with different radiation fields, as well as gamma-ray induced pair cascades.