Broad-line radio galaxies: Old and feeble?
Broad-line radio galaxies: Old and feeble?
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宽线射电星系：又老又弱？
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
Peter Barthel
中科院分区：
文献类型：
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作者：
I. Bemmel;Peter Barthel
宽线射电星系的远红外测光表明，这类活动星系核包括许多热的和一些冷的红外发射器，其光谱能量分布的峰值约为25妈妈或longward的60妈妈，分别。定量分析表明，这种分布与冷尘埃成分强度的大量分散有关：宽线射电星系在大尺度尘埃中相对较差。可能它们经历了不同的合并演化，或者是相对较老的活动星系核。
Far-infrared photometry of broad-line radio galaxies shows this class of AGN to consist of many hot and some cool infrared emitters, with peaks in their spectral energy distributions around 25 mum or longward of 60 mum, respectively. Quantitative analysis indicates that this distribution relates to a substantial dispersion in the strength of the cool dust component: broad-line radio galaxies are relatively poor in large-scale dust. Possibly they have undergone a different merger evolution, or are relatively old AGN.