We present new results from the SCUBA Local Universe Galaxy Survey, the first
large statistical submillimetre survey of the local Universe. Following our
initial survey of a sample of 104 IRAS-selected galaxies we now present the
results of a sample of 80 Optically-selected galaxies. Since SCUBA is sensitive
to the large proportion of dust too cold to be detected by IRAS the addition of
this Optically-selected sample allows us for the first time to determine the
amount of cold dust in galaxies of different Hubble types. We detect 6
ellipticals in the sample and find them to have dust masses in excess of 10^7
solar masses. We derive local submillimetre Luminosity Functions and Dust Mass
functions, both directly for the Optically-Selected SLUGS sample and by
extrapolation from the IRAS PSCz survey, and find them to be well-fitted by
Schechter functions. We find excellent agreement between the two LFs and DMFs
and show that, whereas the slope of the IRAS-selected LF at lower luminosities
was steeper than -2 (a submm "Olbers' Paradox"), as expected the
PSCz-extrapolated LF flattens out at the low luminosity end.Comment: 2 pages, 4 figures. To be published in proceedings of the conference:
"The Dusty and Molecular Universe - A Prelude to HERSCHEL and ALMA", Paris,
October 2004 (ESA Publications