Journal
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
Volume 53, Issue -, Pages 173-176Publisher
SCIENCE PRESS
DOI: 10.1007/s11433-010-0041-1
Keywords
GN; blazar; jet; SPB model; SSC
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Funding
- National Natural Science Foundation of China [10673028, 10778702]
- National Basic Research Program of China [2009CB824800]
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The spectral energy distribution (SED) of TeV blazars has a double-humped shape that is usually interpreted as a Synchrotron Self Compton (SSC) model. The one zone SSC model is used broadly but cannot fit the high energy tail of SED very well. It needs a bulk Lorentz factor which is in conflict with the observation. Furthermore, a one zone SSC model cannot explain the entire spectrum. We propose a new model where the high energy emission is produced by the accelerated protons in the blob with a small size and high magnetic field, and the low energy radiation comes from the electrons in the expanded blob. Because the high and low energy photons are not produced at the same time, the requirement of a large Doppler factor from pair production is relaxed. We present the fitting results of the SEDs for Mrk 501 during April 1997 and Mrk 421 during March 2001.
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