耀变体的多波段性质研究

Blazar是活动星系核的特殊子类，具有极端的观测性质。本项目将利用伽玛噪Blazar的多波段观测资料研究它们的多波段辐射关系及光变性质。主要研究内容为：① 对有代表性的Blazar进行光学观测，结合其它波段的历史资料研究多波段光变行为。通过研究各波段光变的时标和幅度、各波段光变之间的相关、不同波段光变之间的时延等问题，获得光变机，制探讨、黑洞质量和喷流因子等参数、Blazar序列和Blazar演化信息。② 结合我们的观测数据与多波段历史数据，研究Blazar能谱分布，从统计上研究Blazar的各个子类(平谱射电源-FSRQ、低峰频BL天体-LBL、中峰频ＢＬ天体-IBL和高峰频BL天体-HBL)的关系和辐射机制。

Blazars is an extreme subclass of active galactic nucleis (AGNs) with some extreme observational characteristics. In the project, we will study the multiwavelength properties using their multiwavelength data. The study mainly includes: 1, To do optical observations for some selected blazars, combine the observations with the historical data in other bands so as to investigate their multiwavelength variability behavior. By studying their variability time scale and the variability amplitude, the multiwavelength relationship of variability, the time lag between different bands, we will investigate the variability mechanism, the parameters such as black hole masses and the beaming factor, the blazar sequence, and evolution for blazars. 2, Combined our own observations with the mutiwavelength historic data, we will study their spectral energy distribution (SED), and discuss their relationship amongst different subclasses of blazars (flat spectrum radio quasars—FSRQs, the lowly-frequency-peaked BL Lacertae objects-LBLs, the intermediately-frequency-peaked BL Lacertae objects-IBLs, and the highly-frequency-peaked BL Lacertae objects-HBLs), and the emission mechanism.