Establishing a particle distribution for multi-wavelength emission from BL Lac objects

Equipartition of the magnetic field and the electron energy in BL Lac jets

“…The other is in the radiation region, where the particles release a large amount of energy, the radiation energy spectrum of BL Lac objects contains two peaks (e.g., Zheng et al 2018), it is believed that the first low energy peak is generated by relativistic electron synchrotron radiation (e.g., Urry 1998). Two formation mechanisms explain the second high energy peak: the lepton and hadron models (e.g., Konigl 1981;Fossati et al 1998;Costamante et al 2001;Xie et al 2020). Due to the different sources of the seed photons, the lepton model can be divided into the External Compton (EC) (e.g., Böttcher and Dermer 1998;Kataoka et al 1999;B lażejowski et al 2000;Diltz and Böttcher 2014;Zheng et al 2017) and Synchrotron Self-Compton (SSC) models (e.g., Maraschi et al 1992;Bloom and Marscher 1996;Mastichiadis and Kirk 1997;Konopelko et al 2003;Kang et al 2016;Zheng et al 2017).…”