The JCMT Gould Belt Survey: Dense Core Clusters in Orion B
  The JCMT Gould Belt Legacy Survey obtained SCUBA-2 observations of dense
cores within three sub-regions of Orion B: LDN 1622, NGC 2023/2024, and NGC
2068/2071, all of which contain clusters of cores. We present an analysis of
the clustering properties of these cores, including the two-point correlation
function and Cartwright's Q parameter. We identify individual clusters of dense
cores across all three regions using a minimal spanning tree technique, and
find that in each cluster, the most massive cores tend to be centrally located.
We also apply the independent M-Sigma technique and find a strong correlation
between core mass and the local surface density of cores. These two lines of
evidence jointly suggest that some amount of mass segregation in clusters has
happened already at the dense core stage.
