Next: NGC 4945 Up: The Group of Nearby Previous: NGC 3079 . ... H I observations by Rots (1978) and Haynes, Giovanelli & Roberts (1979) reveal emission in all three galaxies as well as a plume and bridge between NGC 3627 and NGC 3628. ... Neutral hydrogen absorption in NGC 3628 was first reported by Dickey (1982); he quotes a line width of 93 kms -1 (although there is a hint of faint absorption over a much larger velocity range) centred at 882 kms -1 , close to the systemic velocity of the galaxy. ...