论文标题
RAM压力剥离高富富的星系将插入大量群集中
Ram pressure stripping of HI-rich galaxies infalling into massive clusters
论文作者
论文摘要
我们估计X射线检测到的簇中HI富的星系的RAM压力剥离（RPS）的强度。我们发现，与具有相似的恒星质量，恒星表面密度和整体恒星形成速率相比，更强的RP下的星系倾向于显示出更明显的总HI质量和增强的中央SFR。在最庞大的集群中，在强或弱的RPS下的星系占HI-FIL人群的40％，甚至超过R200。我们的结果表明，在星系到达集群核心区域之前，RPs作为环境处理的渠道的重要作用。
We estimate the strength of ram pressure stripping (RPS) for HI-rich galaxies in X-ray detected clusters. We find that galaxies under stronger RPS tend to show more significantly reduced total HI mass and enhanced central SFR, compared to control galaxies in the field which have similar stellar mass, stellar surface density and integral star formation rate. Galaxies under strong or weak RPS account for around 40% of the HI-rich population at R200, and even beyond R200 in the most massive clusters. Our results imply the important role of RPS as a channel of environmental processing far before the galaxies reach the core region of clusters.
