  We have statistically analyzed the spatially integrated far-infrared (FIR)
emissions of the complete volume- and luminosity-limited sample of late-type
(later than S0) Virgo cluster galaxies measured using the Infrared Space
Observatory (ISO) by Tuffs et al. (2002) in bands centered on 60, 100 and 170
microns. 30 out of 38 galaxies detected at all three wavelengths contain a cold
dust emission component, present within all morphological types of late-type
systems ranging from early giant spirals to Blue Compact Dwarfs (BCDs), and
which could not have been recognized by IRAS. The temperatures of the cold dust
were found to be broadly distributed, with a median of 18 K, some 8-10 K lower
than would have been predicted from IRAS. The derived total dust masses are
correspondingly increased by factors of typically 6 - 13. A particularly
significant result concerns the low dust temperatures (ranging down to less
than 10 K) and large dust masses associated with the Im and BCD galaxies in our
sample. We propose two scenarios to account for the FIR characteristics of
these systems.
