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The impact of the orientation on the lobe asymmetry in 3C328 radio galaxy

机译：3C328无线电银岩叶不对称对叶不对称的影响

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摘要

In the double-lobed Fanaroff-Riley type-II radio galaxy 3C328, one lobe is devoid of a hotspot. We carried out the VLBA observations of the central component of 3C328 and we found there a jet pointing towards the lobe without a hotspot. We suggest that this is because the nucleus of 3C328 remained in off-state for some time in the recent past. No jets were produced during that period so both hotspots faded out. However, under the assumption that one lobe is much farther from the observer than the other, the hotspot of the far-side lobe can be perceived as not decayed yet due to the light-travel lag. Since activity of the nucleus has been restored, we obtain a proof that it is recurrent. It follows that the orientation of the jet is not a paradox.
机译：在双裂式扇球道 - Riley-II无线电星系3C328中，一个叶片没有热点。我们执行了3C328的中央部件的VLBA观察，我们发现有一个喷射指向叶片而没有热点。我们建议这是因为近期3C328的核心仍处于非洲状态。在此期间没有产生喷射，因此两个热点都消失了。然而，在假设一个叶子远离观察者的观察者比另一个比观察者远离的假设中，远侧叶的热点可以被认为不是由于轻型行进滞后而腐烂。由于核心的活动已经恢复，因此我们获得了其经常性的证据。遵循射流的方向不是悖论。

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