河外射电源核主导系数与流量密度的关系研究  

Research on the Relation Between Core-Dominant Parameters and Flux Density of Extragalactic Radio Sources

作　　者：李为虎[1] 

机构地区：[1]西藏大学农牧学院,西藏林芝860000

出　　处：《西藏大学学报（社会科学版）》2010年第3期86-89,共4页Journal of Tibet University

摘　　要：文章通过搜集河外射电源57个样本,研究样本的核主导系数与核心流量密度及延展元流量密度之间的关系。结果表明,当核主导系数较小时,核主导系数与核心流量密度有好的线性相关性,但核主导系数与延展元流量密度不存在线性相关性;在核主导系数较大时,核主导系数与核心流量密度没有线性相关性,而核主导系数与延展元流量密度存在良好的负线性相关性,所得结果支持了相对论喷流模型。57 extragalactic radio sources were collected.The correlations between Core-dominant parameter （R） with Core flux density （SC） and extended flux density （SE） were studied by using linear regression analysis.Results showed that the core flux density is linearly correlated with the core-dominant parameter,while the extended flux density is not correlated with Core-dominant parameter as the Core-dominant parameter is relatively low;the core flux density is not correlated with Core-dominant parameter,while the extended flux density is negatively correlated with Core-dominant parameter as the Core-dominant parameter is relatively high and the relativistic beaming model was supported by this study.

关 键 词：河外射电源 核主导系数 核心流量密度 延展元流量密度 

分 类 号：O413.1[理学—理论物理]