Study on the Energy Spectrum Variability of Blazar 3C 454.3
The single-zone homogeneous lepton model was used to fit the simultaneous SED data of the flat-spectrum radio quasar 3C 454.3 in 42 periods from 2010 to 2016.The distribution of various pa-rameters during the variability was given,and the acceleration mechanism and the location of the radia-tion region,peak luminosity and peak frequency,power of each component in the jet,and total power of the jet were analyzed.It is found that:(1)the electron spectral index p1 supports the acceleration mechanism of the shock acceleration during variability,(2)the radiation region is located outside the broad-line region and inside the dust tours,(3)PB＜Pr＜Pe＜Pp and Pp/Pjet=68.6％indicate that most of the energy of the jet is carried by cold protons,and(4)the proportion of parameters with an average value of ε greater than 1 is 93％,indicating that particles dominate the jet.
万方数据
维普
