3C 129 at 90 Centimeters: Evidence for a Radio Relic?
3C 129 at 90 Centimeters: Evidence for a Radio Relic?
复制标题
90 厘米处的 3C 129：无线电遗迹的证据？
DOI：
10.1086/340359
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
R. Perley
中科院分区：
文献类型：
--
作者：
W. Lane;N. Kassim;T. Ensslin;D. Harris;R. Perley
我们给出了射电星系3C 129及其伴星系3C 129.1在λ = 90 cm处的新的宽视场图。我们在3C 129的头部附近看到了一个明显的陡谱特征，沿着垂直于射电尾部的方向延伸。我们建议，这个横档可能包括化石无线电等离子体，这已被重新激活的压缩的弓形激波的超音速移动星系3C 129。化石射电等离子体的一个可能来源可能是附近一个头尾射电星系的尾部。我们讨论的影响，并给出可测试的预测这种情况下。
We present a new wide-field map of the radio galaxy 3C 129 and its companion galaxy 3C 129.1 at λ = 90 cm. We see a distinct steep-spectrum feature near the head of 3C 129, extending in a direction perpendicular to the radio tails. We propose that this Crosspiece might consist of fossil radio plasma, which has been reenergized by the compression of the bow shock of the supersonically moving galaxy 3C 129. One possible origin of the fossil radio plasma could be the tail of a nearby head-tail radio galaxy. We discuss the implications of and give testable predictions for this scenario.