A far infrared view of low mass star formation in the Cederblad 110 nebulaof Chamaeleon I

The Cederblad 110 reflection nebula contains several young stellar objects previously discovered by IRAS and sub-mm observations. This cluster was rev isited with ISO's FIR cameras and mapped with higher spatial resolution. Al l sources were also mapped for the first time near the maximum of their spe ctral energy distribution at 200 mum. In addition, two new FIR-sources were discovered. The new data enabled parameters of the young objects to be det ermined, such as their luminosity, temperature and mass of the circumstella r dust. These parameters were related to the YSO classes of the various obj ects ranging from the pure protostar Class O to Class III. Cederblad 110 ca n be viewed as a compact volume of active low mass star formation in a dens e ridge of molecular gas of the Chamaeleon I cloud detected e.g. in (HNC)-C -13 and (CO)-O-18 lines. The star formation efficiency in the 0.001 pc(3) c luster volume is high; about 20% of the gas is now bound into stars.