Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011acasn..52..357k&link_type=abstract
Acta Astronomica Sinica, vol. 52, no. 5, p. 357-364
Astronomy and Astrophysics
Astronomy
Galaxies: Nuclei, Bl Lacertae Objects: Individual: Mark 421, Radiation Mechanisms: Non-Thermal
Scientific paper
Based on the logarithmic parabolic energy distribution of electrons and the homogeneous one-zone synchrotron self-Compton model, the multi-band spectral energy distribution of S5 0716+714 is reproduced. Compared with Paggi's results which are obtained with the method of the δ function approximation, we find our results are a little different. It is argued in this paper that the δ function approximation used in calculating the synchrotron radiation of a single electron leads electrons to partly lose their energies, thus affects the results of inverse Compton scattering radiation. The model is applied to the high, middle and low states of Mark 421 object, respectively. By changing the parameters, we find that the multi-band spectral energy distributions of Mark 421 can be well reproduced. It is considered that the variation of the distribution of the electrons in the jet probably induces the different observational states.
Huang B. R.
Kang Seok-Jin
Kang Ting-Ting
Liang J. H.
Zheng Yong-Gang
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