Can the removal of molecular cloud envelopes by external feedback affect the efficiency of star formation

The authors thank Paul Clark for his contribution towards the original concept of this paper and the anonymous referee for their helpful comments. Our column density plots were produced using Daniel Price’s SPLASH software (Price 2007). The authors gratefully acknowledge support from the ECOGAL project, grant agreement 291227, funded by the European Research Council under ERC-2011-ADG. This work used the compute resources of the St Andrews MHD Cluster. This work used the DiRAC Complexity system, operated by the University of Leicester IT Services, which forms part of the STFC DiRAC HPC Facility (www.dirac.ac.uk). This equipment is funded by BIS National E-Infrastructure capital grant ST/K000373/1 and STFC DiRAC Operations grant ST/K0003259/1. DiRAC is part of the National E-Infrastructure.