Radio Sources and Elliptical Galaxies
Radio Sources and Elliptical Galaxies
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射电源和椭圆星系
DOI：
10.1086/150089
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发表时间：
1969
期刊：
影响因子：
--
通讯作者：
R. Ekers
中科院分区：
文献类型：
--
作者：
D. Rogstad;R. Ekers
翻译后摘要：191 E和SO非星系团星系已知的红移已被调查的无线电发射频率为2640 MHz。这些观测结果支持了一个假设，即椭圆星系必须有一个绝对的照相星等亮于-20才能成为强射电源。将这次调查的结果与观测到的丰富星系团中的射电星系的结果进行比较，表明星系团成员资格并没有增加椭圆星系成为射电发射体的可能性。除了强射电源外，还发现了几个E和SO星系有较弱的无线电发射，但它们的绝对射电光度仍然比探测到的螺旋星系大100倍。（作者）
Abstract : One hundred ninety-one E and SO non-cluster galaxies with known redshift have been surveyed for radio emission at a frequency of 2640 MHz. The observations support the hypothesis that an elliptical galaxy must have an absolute photographic magnitude brighter than -20 to be a strong radio source. A comparison of the results of this survey with observations of radio galaxies in rich clusters indicates that cluster membership does not enhance the probability of an elliptical galaxy being a radio emitter. In addition to the strong radio sources, several E and SO galaxies were found to have weaker radio emission associated with them, but their absolute radio luminosity was still on the order of 100 times larger than that for detected spiral galaxies. (Author)