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SCOPE: SCUBA-2 Continuum Observations of Pre-protostellar Evolution – survey description and compact source catalogue

2019; Oxford University Press; Volume: 485; Issue: 2 Linguagem: Inglês

10.1093/mnras/stz574

1365-2966

David Eden, Tie Liu, Kee-Tae Kim, M. Juvela, Sheng‐Yuan Liu, Ken’ichi Tatematsu, J. Di Francesco, Ke Wang, Y Wu, M. A. Thompson, G. A. Fuller, Di Li, I. Ristorcelli, Sung-Ju Kang, Naomi Hirano, Doug Johnstone, Y. Lin, Jinghan He, Patrick M. Koch, Patricio Sanhueza, S-L Qin, Qizhou Zhang, P. F. Goldsmith, N J Evans, Jiajie Yuan, C-P Zhang, G. J. White, Minho Choi, Chang Won Lee, L. V. Tóth, Steve Mairs, H-W Yi, M Tang, Archana Soam, N. Peretto, M. R. Samal, M. Fich, Harriet Parsons, J. Malinen, G. J. Bendo, A Rivera-Ingraham, H-L Liu, J Wouterloot, P S Li, Lei Qian, Jonathan Rawlings, Mark G. Rawlings, Siyi Feng, B. Wang, Dalei Li, Ming Liu, Gan Luo, A. P. Marston, Kate Pattle, V.-M. Pelkonen, A. J. Rigby, Sarolta Zahorecz, G Zhang, Rebeka Bögner, Y Aikawa, S Akhter, D. Alina, Graham Bell, JP Bernard, A. W. Blain, L Bronfman, D-Y. Byun, S. Chapman, H-R Chen, M Chen, W-P Chen, X Chen, Xuepeng Chen, A. Chrysostomou, You‐Hua Chu, Eun Jung Chung, David Cornu, Giuliana Cosentino, Maria Cunningham, K. Demyk, E. Drabek-Maunder, Yasuo Doi, C Eswaraiah, E. Falgarone, O. Feher, H. J. Fraser, Per Friberg, G. Garay, Jixing Ge, W. K. Gear, J Greaves, X. Guan, L. Harvey‐Smith, Tetsuo Hasegawa, Yuxin He, C. Henkel, Tomoya Hirota, W Holland, A Hughes, E. Jarken, Tae-Geun Ji, I. Jiménez-Serra, Miju Kang, Koji S. Kawabata, Gwanjeong Kim, Jungha Kim, Jongsoo Kim, Shinyoung Kim, B-C Koo, Woojin Kwon, Y-J Kuan, Kevin Lacaille, S. Lai, Chin‐Fei Lee, Jeong‐Eun Lee, Y-U Lee, H. Li, N. Lo, John Lopez, Xing Lu, A-R Lyo, D. Mardones, P. McGehee, Fanyi Meng, L. Montier, J. Montillaud, T. J. T. Moore, Ó. Morata, G. H. Moriarty‐Schieven, Satoshi Ohashi, Soojong Pak, Geumsook Park, R. Paladini, Gerardo Pech, Keqiang Qiu, Z-Y Ren, John Richer, Takeshi Sakai, Hsien Shang, Hiroko Shinnaga, Dimitris Stamatellos, Ya‐Wen Tang, A. Traficante, C. Vastel, S. Viti, Andrew Walsh, Hao Wang, Junfeng Wang, D. Ward‐Thompson, A. P. Whitworth, C. D. Wilson, Yan Xu, Ji Yang, Y-L Yuan, Liping Yuan, A. Zavagno, Chao Zhang, G Zhang, Huawei Zhang, Chenlin Zhou, Jianwen Zhou, Lei Zhu, Peng Zuo,

Atmospheric Ozone and Climate

We present the first release of the data and compact-source catalogue for the JCMT Large Program SCUBA-2 Continuum Observations of Pre-protostellar Evolution (SCOPE). SCOPE consists of 850-um continuum observations of 1235 Planck Galactic Cold Clumps (PGCCs) made with the Submillimetre Common-User Bolometer Array 2 on the James Clerk Maxwell Telescope. These data are at an angular resolution of 14.4 arcsec, significantly improving upon the 353-GHz resolution of Planck at 5 arcmin, and allowing for a catalogue of 3528 compact sources in 558 PGCCs. We find that the detected PGCCs have significant sub-structure, with 61 per cent of detected PGCCs having 3 or more compact sources, with filamentary structure also prevalent within the sample. A detection rate of 45 per cent is found across the survey, which is 95 per cent complete to Planck column densities of $N_{H_{2}}$ $>$ 5 $\times$ 10$^{21}$ cm$^{-2}$. By positionally associating the SCOPE compact sources with YSOs, the star formation efficiency, as measured by the ratio of luminosity to mass, in nearby clouds is found to be similar to that in the more distant Galactic Plane, with the column density distributions also indistinguishable from each other.