HI in elliptical galaxies
  Neutral hydrogen is an important component of the interstellar medium in elliptical galaxies as well as a potentially valuable mass tracer. Until recently, HI surveys of early-type galaxies have been sparse and inhomogeneous but this has changed with the advent of the HI Parkes All-Sky Survey (HIPASS; Barnes et al. 2001). We discuss HIPASS observations of a sample of ~2500 nearby E/S0 galaxies, as well as detailed HI imaging of a range of individual objects. 
Elaine M. Sadler (1), Tom Oosterloo (2), Raffaella Morganti (2)((1)   School of Physics, University of Sydney, Australia, (2...