Multiwavelength Doppler factors for Fermi-detected gamma-ray loud blazars |
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Authors: | Hou-Dun Zeng Li Zhang |
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Institution: | Hou-Dun Zeng and Li Zhang Department of Physics,Yunnan University,Kunming 650091,China |
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Abstract: | We collect a sample of 51 Fermi-detected gamma-ray loud blazars with known radio Doppler factors and study properties of the Doppler factors of blazars at optical,X-ray and gamma-ray bands.A basic assumption is that the emission from the radio to gamma-ray bands of the blazars are produced by the nonthermal radiation of accelerated particles in a jet.Our results show that (1) the Doppler factors of blazars are a function of frequency,with the Doppler factor decreasing with frequency from the radio to X-ray ... |
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