论文标题
$ z \ sim0 $ shock诱导的卫星ISM/CGM的剥离式ISM/CGM
Shock-induced stripping of satellite ISM/CGM in IllustrisTNG clusters at $z\sim0$
论文作者
论文摘要
使用Illustristng模拟，我们研究了星系簇中的星形成（SF）卫星星系的大规模冲击与串联培养基（CGM）和星际培养基（ISM）的相互作用。这些冲击通常由合并和大量积聚产生。我们的视觉检查表明，大约一半的SF卫星以$ z \ leq0.11 $遇到了主机簇的冲击。卫星越过冲击战线并进入后震动区域后，其上的RAM压力显着升高。 CGM和ISM都可以通过条纹或压缩来严重影响。 ISM的剥离对于具有$ \ log（m _ {*}/m _ {\ odot}）<10 $的低质量星系尤其重要，即使在星系群的郊区也可能发生。相比之下，不与冲击相互作用的卫星仅在集群的内部区域失去ISM。横跨冲击战线后，大约一半的ISM在约0.6 Gyr中被剥离。我们的结果表明，冲击引起的剥离在淬火簇中的卫星星系中起着重要作用。
Using the IllustrisTNG simulation, we study the interaction of large-scale shocks with the circumgalactic medium (CGM) and interstellar medium (ISM) of star-forming (SF) satellite galaxies in galaxy clusters. These shocks are usually produced by mergers and massive accretion. Our visual inspection shows that approximately half of SF satellites have encountered shocks in their host clusters at $z\leq0.11$. After a satellite crosses a shock front and enters the postshock region, the ram pressure on it is boosted significantly. Both the CGM and ISM can be severely impacted, either by striping or compression. The stripping of the ISM is particularly important for low-mass galaxies with $\log (M_{*}/M_{\odot})<10$ and can occur even in the outskirts of galaxy clusters. In comparison, satellites that do not interact with shocks lose their ISM only in the inner regions of clusters. About half of the ISM is stripped within about 0.6 Gyr after it crosses the shock front. Our results show that shock-induced stripping plays an important role in quenching satellite galaxies in clusters.
