论文标题
3CR 196.1的腔：H $α$排放在空间上与X射线腔相关
The cavity of 3CR 196.1: H$α$ emission spatially associated with an X-ray cavity
论文作者
论文摘要
我们提出了射电星系3CR 196.1（$ z = 0.198 $）的多频分析，该分析与凉爽核心群集CIZAJ0815.4-0303的最明亮的星系有关。附近的射电星系显示了混合无线电形态和X射线腔，这都是湍流过去活动的签名，这可能是由于合并事件和AGN爆发引起的。我们以数十kpc的规模介绍了$ chandra $ $ chandra $和VLT/MUSE数据之间的比较结果。我们发现了H $α$ + [n ii] $ \ lambda6584 $发射在空间上与X射线腔（从星系核中$ \ sim $ 10 kpc），而不是与其边缘相关。该结果与以前在其他射电星系中围绕X射线腔的离子气体的发现不同，该射线星系中有带有星系簇的X射线腔，可能代表了第一个报道的电离气体填充X射线腔的病例，这是由于不同的AGN爆发或温暖的冷却（$ 10^4 <t \ leq10^7 $ K）Agn upflow。我们还发现，H $α$，[n ii] $λ\ lambda6548,6584 $和[s ii] $λ\ lambda6718,6733 $发射行显示了额外的重新零件，$ \ sim $ 1000 km $ \，$ s $ s $ s $^{$ s $^{$ s $^$^{$^$^$^$^$^{$^o. iii] $λ\ lambda4960,5008 $。我们认为，这种红色组件的最可能解释是存在背景气云，因为该组件和其余框架之间的速度似乎存在离散的差异。
We present a multifrequency analysis of the radio galaxy 3CR 196.1 ($z = 0.198$), associated with the brightest galaxy of the cool core cluster CIZAJ0815.4-0303. This nearby radio galaxy shows a hybrid radio morphology and an X-ray cavity, all signatures of a turbulent past activity, potentially due to merger events and AGN outbursts. We present results of the comparison between $Chandra$ and VLT/MUSE data for the inner region of the galaxy cluster, on a scale of tens of kpc. We discovered H$α$ + [N II]$\lambda6584$ emission spatially associated with the X-ray cavity (at $\sim$10 kpc from the galaxy nucleus) instead of with its rim. This result differs from previous discoveries of ionized gas surrounding X-ray cavities in other radio galaxies harbored in galaxy clusters and could represent the first reported case of ionized gas filling an X-ray cavity, either due to different AGN outbursts or to the cooling of warm ($10^4<T\leq10^7$ K) AGN outflows. We also found that the H$α$, [N II]$λ\lambda6548,6584$ and [S II]$λ\lambda6718,6733$ emission lines show an additional redward component, at $\sim$1000 km$\,$s$^{-1}$ from rest frame, with no detection in H$β$ or [O III]$λ\lambda4960,5008$. We believe the most likely explanation for this redward component is the presence of a background gas cloud since there appears to be a discrete difference in velocities between this component and the rest frame.
