湖南文理学院学报(自然科学版)
湖南文理學院學報(自然科學版)
호남문이학원학보(자연과학판)
JOURNAL OF HUNAN UNIVERSITY OF ARTS AND SCIENCE(SCIENCE AND TECHNOLOGY)
2006年
2期
22-25
,共4页
射电源%核主导系数%流量密度%相对论束流模型
射電源%覈主導繫數%流量密度%相對論束流模型
사전원%핵주도계수%류량밀도%상대론속류모형
Radio sources%core-dominance parameter%Flux density%Relativistic Beaming Model
计算了2个河外射电源样本的核主导系数,并研究了核主导系数与核及延展元的流量密度的关系.结果显示:当核主导系数较小时,核主导系数与核流量密度线性相关;当核主导系数较大时,核流量密度与核主导系数没有相关,而与延展元流量有线性相关.因此,2个样本的这些关系依赖于流量密度与核主导系数,利用相对论喷流模型能解释用2个样本所得到的相关结果.
計算瞭2箇河外射電源樣本的覈主導繫數,併研究瞭覈主導繫數與覈及延展元的流量密度的關繫.結果顯示:噹覈主導繫數較小時,覈主導繫數與覈流量密度線性相關;噹覈主導繫數較大時,覈流量密度與覈主導繫數沒有相關,而與延展元流量有線性相關.因此,2箇樣本的這些關繫依賴于流量密度與覈主導繫數,利用相對論噴流模型能解釋用2箇樣本所得到的相關結果.
계산료2개하외사전원양본적핵주도계수,병연구료핵주도계수여핵급연전원적류량밀도적관계.결과현시:당핵주도계수교소시,핵주도계수여핵류량밀도선성상관;당핵주도계수교대시,핵류량밀도여핵주도계수몰유상관,이여연전원류량유선성상관.인차,2개양본적저사관계의뢰우류량밀도여핵주도계수,이용상대론분류모형능해석용2개양본소득도적상관결과.
The core-dominance parameter is calculated and investigated for the correlation with the core/extended flux density for two samples. But the two samples show different dependence of flux density on the core dominance parameter.Based on the relativistic beaming model, a relation between core-dominance parameter and the core/extended flux density is derived for extragalactic radio sources. The relations show that the core flux density is linearly correlated with the core-dominance parameter while the extended flux density is not correlated with core-dominance parameter when the core-dominance is lower than unity, and that the core flux density is not correlated with the core-dominance parameter while the extended flux density is linearly correlated with core-dominance parameter when the core-dominance is higher than unity. The relation obtained here can explain the different result obtained from two samples.