SPECTRAL VARIABILITY AND TRANSIENT INJECTION OF RELATIVISTIC ELECTRONS FOR BL LAC OBJECTS
Chen Luo-en (梅冬成)a, Mei Dong-cheng (谢光中)b, Xie Guang-zhong (陈洛恩)b
a Department of Physics, Yuxi Teachers College, Yuxi 653100, China; b 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.
Received: 06 March 2000
Revised: 09 June 2000
Accepted manuscript online:
(Active and peculiar galaxies and related systems (including BL Lacertae objects, blazars, Seyfert galaxies, Markarian galaxies, and active galactic nuclei))
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 19863001), and by the Natural Science Foundation of Yunnan Province, China (Grant No. 98A010M).
Cite this article:
Chen Luo-en (梅冬成), Mei Dong-cheng (谢光中), Xie Guang-zhong (陈洛恩) SPECTRAL VARIABILITY AND TRANSIENT INJECTION OF RELATIVISTIC ELECTRONS FOR BL LAC OBJECTS 2000 Chinese Physics 9 787
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