期刊信息

  • 刊名: 河北师范大学学报(自然科学版)Journal of Hebei Normal University (Natural Science)
  • 主办: 河北师范大学
  • ISSN: 1000-5854
  • CN: 13-1061/N
  • 中国科技核心期刊
  • 中国期刊方阵入选期刊
  • 中国高校优秀科技期刊
  • 华北优秀期刊
  • 河北省优秀科技期刊

0716+714的长期光变和色指数变化

  • 1. 山东大学 威海分校 空间科学与应用物理系, 山东 威海 264209;
    2. 中国科学院 国家天文台, 北京 100012;
    3. 河北师范大学 物理科学与信息工程学院, 河北 石家庄 050016;
    4. 哈尔滨工业大学 威海分校 计算机科学与工程学院, 山东 威海 264209
  • DOI:

Long Period Variability and Color Indices Variability of 0716+714

摘要/Abstract

摘要:

对收集的BL Lac天体0716+714长期大量的光学多波段数据进行了研究,得到了多波段光变曲线.对色指数的变化进行分析得出,0716+714的光变包括长期单色光变和短期有颜色变化的爆发2种成份.根据这种光变特性,对引起光变的物理机制进行了讨论,认为激波喷流模型加上几何效应的调制是目标光变的物理机制.

Abstract:

Lots of long period multi-band optical observations were collected.These data were studied extensively.The light curves were obtained.At the same time,the color indices were analyzed.It was concluded that the variability of 0716+714 contained the long term achromatic variability and chromatic short flares.The physical mechanism which induced variability was discussed.It was concluded that the shock-injet model modulated by geometrical effect might be the physical mechanism of the object's variability.