The HI properties of galaxies in the Coma I cloud revisited
  Pre-processing within small groups has been proposed to explain several of
the properties of galaxies inhabiting rich clusters. The aim of the present
work is to see whether pre-processing is acting in the nearby universe, where
the structures that are merging to form rich clusters are rather large and
massive. We study the HI gas properties of a large sample of late-type galaxies
belonging to the Coma I cloud, an association of objects close to the Virgo
cluster. Contrary to what previously claimed, late-type galaxies in the Coma I
cloud are not deficient in HI gas (HI-def=0.06+-0.44). If the Coma I cloud is
representative of infalling groups in nearby clusters, this result suggests
that, in the local universe, the evolution of late-type galaxies belonging to
loose structures with high velocity dispersions (>= 300 km/s)associated to rich
clusters such as Virgo is not significantly perturbed by pre-processing.
