The radio properties of radio-quiet quasars
The radio properties of radio-quiet quasars
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DOI：
10.1046/j.1365-8711.1998.01481.x
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发表时间：
1997-01
影响因子：
4.8
通讯作者：
M. Kukula;J. Dunlop;D. Hughes;S. Rawlings
中科院分区：
文献类型：
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作者：
M. Kukula;J. Dunlop;D. Hughes;S. Rawlings
虽然射电宁静类星体（RQQs），构成了大多数的光学识别类星体样本，绝不是无线电沉默的，他们的无线电发射的性质只是知之甚少。我们提出了一个多频VLA研究的27个低红移RQQs的结果。在一般情况下，我们发现，在RQQs的无线电源的属性是一致的，他们是弱，小规模（~ 1千秒差距）喷流类似于在附近的塞弗特星系中观察到的。我们的结论是，在RQQs的无线电发射的一个显着的部分是直接与中央引擎，是不是在周围星系的恒星过程的结果。在椭圆星系和盘星系中，RQQs的射电性质似乎没有区别，这意味着宿主星系和活动核的“射电响度”之间的关系并不简单。
Although radio-quiet quasars (RQQs), which constitute the majority of optically-identified quasar samples, are by no means radio silent the properties of their radio emission are only poorly understood. We present the results of a multi-frequency VLA study of 27 low-redshift RQQs. In general, we find that the properties of the radio sources in RQQs are consistent with them being weak, small-scale (~ 1 kpc) jets similar to those observed in nearby Seyfert galaxies. We conclude that a significant fraction of the radio emission in RQQs is directly associated with the central engine and is not a result of stellar processes in the surrounding galaxy. There appears to be no difference between the radio properties of RQQs in elliptical and disc galaxies, implying that the relationship between the host galaxy and the ‘radio loudness’ of the active nucleus is not straightforward.