Mapping the Extended HI Distribution of Three Dwarf Galaxies
  We present large field HI-line emission maps obtained with the single-dish
Green Bank Telescope centered on the dwarf irregular galaxies Sextans A, NGC
2366, and WLM. We do not detect the extended skirts of emission associated with
the galaxies that were reported from Effelsberg observations (Huchtmeier et al.
1981). The ratio of HI at 10^19 atoms cm^-2 to optical extents of these
galaxies are instead 2--3, which is normal for this type of galaxy. There is no
evidence for a truncation in the HI distribution >/=10^19 atoms cm^-2.
