首页> 美国卫生研究院文献>Proceedings of the National Academy of Sciences of the United States of America >Very-long-baseline radio interferometry observations of low power radio galaxies.
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Very-long-baseline radio interferometry observations of low power radio galaxies.

机译:低功率射电星系的超长基线射电干涉观测。

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摘要

The parsec scale properties of low power radio galaxies are reviewed here, using the available data on 12 Fanaroff-Riley type I galaxies. The most frequent radio structure is an asymmetric parsec-scale morphology--i.e., core and one-sided jet. It is shared by 9 (possibly 10) of the 12 mapped radio galaxies. One (possibly 2) of the other galaxies has a two-sided jet emission. Two sources are known from published data to show a proper motion; we present here evidence for proper motion in two more galaxies. Therefore, in the present sample we have 4 radio galaxies with a measured proper motion. One of these has a very symmetric structure and therefore should be in the plane of the sky. The results discussed here are in agreement with the predictions of the unified scheme models. Moreover, the present data indicate that the parsec scale structure in low and high power radio galaxies is essentially the same.
机译:本文使用12个Fanaroff-Riley I型星系的可用数据,对低功率射电星系的视差尺度特性进行了回顾。最常见的无线电结构是不对称的parsec尺度形态-即核心和单边射流。它由12个映射的无线电星系中的9个(可能为10个)共享。其他星系中的一个(可能是2个)具有双向射流发射。从已发布的数据中可知有两个来源可以显示出正确的运动。我们在此提供另外两个星系中适当运动的证据。因此,在本样本中,我们有4个射电星系,它们的运动被测得适当。其中之一具有非常对称的结构,因此应位于天空平面中。这里讨论的结果与统一方案模型的预测一致。而且,本数据表明,低功率和高功率射电星系中的视差尺度结构基本相同。

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