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

H. Kirk; D. Johnstone; J. Di Francesco; J. Lane; J. Buckle; D. S. Berry; H. Broekhoven-Fiene; M. J. Currie; M. Fich; J. Hatchell; T. Jenness; J. C. Mottram; D. Nutter; K. Pattle; J. E. Pineda; C. Quinn; C. Salji; S. Tisi; M. R. Hogerheijde; D. Ward-Thompson

doi:10.3847/0004-637X/821/2/98

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

H. Kirk, D. Johnstone, J. Di Francesco, J. Lane, J. Buckle, D. S. Berry, H. Broekhoven-Fiene, M. J. Currie, M. Fich, J. Hatchell, T. Jenness, J. C. Mottram, D. Nutter, K. Pattle, J. E. Pineda, C. Quinn, C. Salji, S. Tisi, M. R. Hogerheijde, D. Ward-Thompson

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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.

Original language	English
Article number	98
Journal	Astrophysical Journal
Volume	821
Issue number	2
DOIs	https://doi.org/10.3847/0004-637X/821/2/98
Publication status	Published - 20 Apr 2016
Externally published	Yes

Keywords

stars: formation
submillimeter: ISM

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10.3847/0004-637X/821/2/98

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Kirk, H., Johnstone, D., Di Francesco, J., 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. (2016). THE JCMT GOULD BELT SURVEY: DENSE CORE CLUSTERS in ORION B. Astrophysical Journal, 821(2), Article 98. https://doi.org/10.3847/0004-637X/821/2/98

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title = "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, 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.",

keywords = "stars: formation, submillimeter: ISM",

author = "H. Kirk and D. Johnstone and {Di Francesco}, J. and J. Lane and J. Buckle and Berry, {D. S.} and H. Broekhoven-Fiene and Currie, {M. J.} and M. Fich and J. Hatchell and T. Jenness and Mottram, {J. C.} and D. Nutter and K. Pattle and Pineda, {J. E.} and C. Quinn and C. Salji and S. Tisi and Hogerheijde, {M. R.} and D. Ward-Thompson",

year = "2016",

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doi = "10.3847/0004-637X/821/2/98",

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Kirk, H, Johnstone, D, Di Francesco, J, Lane, J, Buckle, J, Berry, DS, Broekhoven-Fiene, H, Currie, MJ, Fich, M, Hatchell, J, Jenness, T, Mottram, JC, Nutter, D, Pattle, K, Pineda, JE, Quinn, C, Salji, C, Tisi, S, Hogerheijde, MR & Ward-Thompson, D 2016, 'THE JCMT GOULD BELT SURVEY: DENSE CORE CLUSTERS in ORION B', Astrophysical Journal, vol. 821, no. 2, 98. https://doi.org/10.3847/0004-637X/821/2/98

TY - JOUR

T1 - THE JCMT GOULD BELT SURVEY

T2 - DENSE CORE CLUSTERS in ORION B

AU - Kirk, H.

AU - Johnstone, D.

AU - Di Francesco, J.

AU - Lane, J.

AU - Buckle, J.

AU - Berry, D. S.

AU - Broekhoven-Fiene, H.

AU - Currie, M. J.

AU - Fich, M.

AU - Hatchell, J.

AU - Jenness, T.

AU - Mottram, J. C.

AU - Nutter, D.

AU - Pattle, K.

AU - Pineda, J. E.

AU - Quinn, C.

AU - Salji, C.

AU - Tisi, S.

AU - Hogerheijde, M. R.

AU - Ward-Thompson, D.

PY - 2016/4/20

Y1 - 2016/4/20

N2 - 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.

AB - 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.

KW - stars: formation

KW - submillimeter: ISM

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DO - 10.3847/0004-637X/821/2/98

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SN - 0004-637X

VL - 821

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 98

ER -

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

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