The JCMT Gould Belt Survey : constraints on prestellar core properties in Orion A

  title={The JCMT Gould Belt Survey : constraints on prestellar core properties in Orion A},
  author={C. J. Salji and John S. Richer and Jane V. Buckle and Jennifer Hatchell and Helen Kirk and Sylvie F. Beaulieu and David S. Berry and H. Broekhoven-Fiene and Malcolm J. Currie and Michel Fich and Tim Jenness and Dan Johnstone and Joseph C. Mottram and David Nutter and K. Pattle and J R Exequiel T Pineda and Conor Quinn and Silvia Tisi and S. Walker-Smith and James di Francesco and Michiel R. Hogerheijde and Derek Ward-Thompson and Pierre Bastien and Harold M. Butner and Mingshi Chen and Andreas K. Chrysostomou and Simon Coud{\'e} and Christopher J. Davis and E. Drabek-Maunder and A. Duarte-Cabral and Jason D. Fiege and Per Friberg and Rachel Friesen and Gary A. Fuller and S. Graves and Justin Greaves and Jon Gregson and Wesley Holland and Gilles Joncas and Jason M. Kirk and Lewis B. G. Knee and Steve Mairs and Ken Marsh and Brenda C. Matthews and Gerald H. Moriarty-Schieven and Jonathan M. C. Rawlings and Daniel Robertson and Erik Rosolowsky and Douglas Rumble and Sarah I. Sadavoy and H E Thomas and Nicholas F. H. Tothill and Serena Viti and Glenn J. White and Christine J. Wilson and J. G. A. Wouterloot and Jeremy Yates and Mingxuan Zhu},
We employ SCUBA-2 (Submillimetre Common-User Bolometer Array 2) observations of the Orion A North molecular cloud to derive column density and temperature maps. We apply a novel, Hessian-based structural identification algorithm for detection of prestellar cores to these data, allowing for automated generation of the prestellar mass function. The resulting mass function is observed to peak at 1.39+0.18 −0.19 M , indicating a star-forming efficiency lower limit of ∼14 per cent when compared with… CONTINUE READING