摘要: We present Giant Metrewave Radio Telescope and Very Large Array observations of HI 21-cm absorption in ten z 10^{21} cm^{-2} >10^{22} arise from mergers, respectively. The distribution N(HI) among the mergers is significantly different that found isolated systems, with giving rise to six times stronger on average. fraction redshifted components (with respect systemic velocity radio source obtained optical emission lines) be higher by two three compared for non-interacting systems. Follow-up spatially-resolved multi-wavelength spectroscopy essential understand exact connection between presence circumnuclear neutral gas AGN activity these mergers.
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