HCG HI-deficiency

We present HI observations of 54 Hickson Compact Groups (HCG) of which 41 have been detected in the 21-cm line of neutral hydrogen. For 13 objects upper limits have been...本研究呈现了54个希克森致密星系团（Hickson Compact Groups，HCG）的中性氢（HI）观测数据，其中41个星系团已在中性氢21厘米谱线中被探测到。针对其余13个目标，已给出探测上限……