THE JCMT GOULD BELT SURVEY: DENSE CORE CLUSTERS IN ORION B

ABSTRACT The James Clerk Maxwell Telescope 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...

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Bibliographic Details
Published in:	The Astrophysical journal 2016-04, Vol.821 (2), p.98-98
Main Authors:	Kirk, H., Johnstone, D., Francesco, J. Di, Lane, J., Buckle, J., Berry, D. S., Broekhoven-Fiene, H., Currie, M. J., Fich, M., Hatchell, J., Jenness, T., Mottram, J. C., Nutter, D., Pattle, K., Pineda, J. E., Quinn, C., Salji, C., Tisi, S., Hogerheijde, M. R., Ward-Thompson, D.
Format:	Article
Language:	eng
Subjects:	Belts Clusters Correlation Density Graph theory Legacy Segregations stars: formation submillimeter: ISM Telescopes
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Summary:	ABSTRACT The James Clerk Maxwell Telescope 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- 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.
ISSN:	0004-637X 1538-4357