EPoS Contribution
EPoS Contribution
Mopra observations of cold cores

Tracey Hill
University of Exeter, Exeter, UK
We have undertaken a largescale spectral line study of millimetre continuum cores identified with the SEST telescope. These mm-only cores are devoid of typical star formation identifiers such as methanol maser and UC HII regions. Spectral energy distribution analysis of these mm-only cores indicates that they are typically cooler than sources where star formation is known to be taking place - such as those identified with masers and UC HII regions. We have embarked upon a millimetre spectral line study of a sample of mm-only cores in order to ascertain their physical and chemial properties and ultimately to address whether they display evidence of massive star formation. Results from this Mopra study will be presented here.