湖南师范大学自然科学学报
湖南師範大學自然科學學報
호남사범대학자연과학학보
ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS NORMALIS HUNANENSIS
2008年
1期
53-58
,共6页
河外射申源%谱指数%核主导系数
河外射申源%譜指數%覈主導繫數
하외사신원%보지수%핵주도계수
extragalactic radio sources%spectral index%core-dominance parameter
给出了一个含57个河外射电源样本,计算了其在6 cm波段的核主导系,以及各源总辐射、核辐射及延展元辐射的谱指数.分析了这些谱指数之间的相互关系,对所得结果用一个两部分辐射相对论喷流模型给出了合理的解释.
給齣瞭一箇含57箇河外射電源樣本,計算瞭其在6 cm波段的覈主導繫,以及各源總輻射、覈輻射及延展元輻射的譜指數.分析瞭這些譜指數之間的相互關繫,對所得結果用一箇兩部分輻射相對論噴流模型給齣瞭閤理的解釋.
급출료일개함57개하외사전원양본,계산료기재6 cm파단적핵주도계,이급각원총복사、핵복사급연전원복사적보지수.분석료저사보지수지간적상호관계,대소득결과용일개량부분복사상대론분류모형급출료합리적해석.
The total (αT), core αC and extended (αE) spectral indices and core-dominance param-eter (R) at 6 cm were calculated for a sample of 57 extragalactic radio sources. The correlations between R and αT and αC, and the mutual correlations between αT, αC and αE were investigated and explained using a two-component relativistic beaming model.
