摘要
从已有文献中收集了一定数量的有关Blazar天体的数据,分析光变、偏振度以及核优参数之间的相关性,结果表明光变和偏振及核优参数之间有一定的关系,这可能暗示Blazar天体存在着聚束效应.
Blazar is an extreme subset of AGNs,constituting less than a few percent of the known AGN population. While Blazar have some properties in common with other AGNs,they have some characteristics that set them apart. The observation properties are probably the cause of strong beaming effect,and these properties would be mutually correlated. The relationship between the polarization and the magnitude variation in brightness,as well as the core-dominance parameter are derived and used statistically to compare with the observational data of Blazar smaples. The result suggests that the polarization, variation and the core-dominance parameters are possible indications of the beaming effect.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第9期5558-5563,共6页
Acta Physica Sinica
基金
国家自然科学基金项目(批准号:10363002)
教育部科学技术研究重点项目(批准号:02142)
云南省自然科学基金(批准号:2004A0027M)资助的课题.~~