Emission line regions and stellar associations in extended extragalactic radio sources
Emission line regions and stellar associations in extended extragalactic radio sources
复制标题
扩展河外射电源中的发射线区域和恒星关联
DOI：
--
复制
发表时间：
1981
期刊：
影响因子：
--
通讯作者：
D. S. De Young
中科院分区：
文献类型：
--
作者：
D. S. De Young
最近对两个射电星系3C277.3和半人马座A的观测显示，发射线细丝和扩展的射电发射区域共存。在半人马座A中也发现了年轻恒星的巧合关联。这里提出了一个模型，可以解释发射线区域和年轻恒星的存在，因为它们是由为射电源提供动力的流出气体夹带的星际物质产生的。年轻恒星的晚期演化可能为射电源所需的原位能量注入提供了很大一部分。
Recent observations of two radio galaxies, 3C277.3 and Centaurus A, reveal the coexistence of emission line filaments and the extended radio-emitting regions. Coincident associations of young stars are also found in Cen A. A model is proposed here that can account for the presence of both emission line regions and young stars as arising from the entrainment of interstellar matter by the outflowing gas which powers the radio source. Late evolution of the young stars may provide a significant fraction of the in situ energy injection required for the radio sources.