Far‐Infrared Photometry of a Statistical Sample of Late‐Type Virgo Cluster Galaxies

We present deep diffraction-limited far-infrared (FIR) strip maps of a sampleof 63 galaxies later than S0 and brighter than B_T 16.8, selected from theVirgo Cluster Catalogue of Binggeli, Sandage & Tammann. The ISOPHOT instrumenton board the Infrared Space Observatory was used to achieve sensitivitiestypically an order of magnitude deeper than IRAS in the 60 and 100 micron bandsand to reach the confusion limit at 170 microns. The averaged 3 sigma upperlimits for integrated flux densities of point sources at 60, 100 and 170microns are 43, 33 and 58 mJy, respectively. 54 galaxies (85.7 percent) aredetected at least at one wavelength, and 40 galaxies (63.5 percent) aredetected at all three wavelengths. The highest detection rate (85.7 percent) isin the 170 micron band. In many cases the galaxies are resolved, allowing thescale length of the infrared disks to be derived from the oversampledbrightness profiles in addition to the spatially integrated emission. The datapresented should provide the basis for a variety of statistical investigationsof the FIR spectral energy distributions of gas rich galaxies in the localuniverse spanning a broad range in star-formation activity and morphologicaltypes, including dwarf systems and galaxies with rather quiescent starformation activity.Comment: 53 pages (Latex), Fig. 10 is only available for the journal paper, to be published in ApJS, v139, March 200