中国物理B ›› 2000, Vol. 9 ›› Issue (10): 787-790.doi: 10.1088/1009-1963/9/10/014

• GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS • 上一篇    

SPECTRAL VARIABILITY AND TRANSIENT INJECTION OF RELATIVISTIC ELECTRONS FOR BL LAC OBJECTS

陈洛恩1, 梅冬成2, 谢光中2   

  1. (1)Department of Physics, Yuxi Teachers College, Yuxi 653100, China; (2)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
  • 收稿日期:2000-03-06 修回日期:2000-06-09 出版日期:2005-06-10 发布日期:2005-06-10
  • 基金资助:
    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).

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   

  1. 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
  • Received:2000-03-06 Revised:2000-06-09 Online:2005-06-10 Published:2005-06-10
  • Supported by:
    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).

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摘要： 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.

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.

Key words: BL Lac objects, spectrum, radiation mechanism

中图分类号:  (Radiation mechanisms; polarization)

  • 95.30.Gv
98.54.Cm (Active and peculiar galaxies and related systems (including BL Lacertae objects, blazars, Seyfert galaxies, Markarian galaxies, and active galactic nuclei))