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SPECTRAL VARIABILITY AND TRANSIENT INJECTION OF RELATIVISTIC ELECTRONS FOR BL LAC OBJECTS |
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| Authors: | Mei Dong-cheng Xie Guang-zhong Chen Luo-en |
| Affiliation: | Department of Physics, Yuxi Teachers College, Yuxi 653100, China; Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011, China; National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100080, China; Yunnan Astrophysics Center, Yunnan University, Kunming 650091, China |
| Abstract: | The spectral hardening with increasing intensity in optical range for four BL Lac objects have been found by analyzing our observed data. Making use of the synchrotron loss of transient injection of relativistic electrons, we succeeded in explaining the phenomenon of the spectral hardening in the outburst phase. The value of magnetic intensity and the limit condition of the transient injection of relativistic electrons seem to be reasonable. |
| Keywords: | BL Lac objects spectrum radiation mechanism |
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