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The JCMT Gould Belt Survey: first results from SCUBA-2 observations of the Cepheus Flare region
Pattle, K.1; Ward-Thompson, D.1; Kirk, J. M.1; Di Francesco, J.2,3; Kirk, H.2; Mottram, J. C.4,5; Keown, J.3; Buckle, J.6,7; Beaulieu, S. F.8; Berry, D. S.9; Broekhoven-Fiene, H.3; Currie, M. J.; Fich, M.8; Hatchell, J.10; Jenness, T.9,11; Johnstone, D.2,3,9; Nutter, D.12; Pineda, J. E.13,14,15; Quinn, C.; Salji, C.6,7; Tisi, S.8; Walker-Smith, S.6,7; Hogerheijde, M. R.4; Bastien, P.16,17; Bresnahan, D.; Butner, H.18; Chen, M.3; Chrysostomou, A.19; Coude, S.; Davis, C. J.20; Drabek-Maunder, E.21; Duarte-Cabral, A.; Fiege, J.22; Friberg, P.; Friesen, R.23; Fuller, G. A.; Graves, S.12; Greaves, J.9; Gregson, J.24,25; Holland, W.26,27; Joncas, G.28,29; Knee, L. B. G.2; Mairs, S.3; Marsh, K.12; Matthews, B. C.2,3; Moriarty-Schieven, G.2; Mowat, C.; Rawlings, J.30; Richer, J.6,7; Robertson, D.31; Rosolowsky, E.32; Rumble, D.10; Sadavoy, S.5; Thomas, H.9; Tothill, N.33; Viti, S.30; White, G. J.24,25; Wouterloot, J.9; Yates, J.30; Zhu, M.34
2017-02-01
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号464期号:4页码:4255-4281
摘要We present observations of the Cepheus Flare obtained as part of the James Clerk Maxwell Telescope (JCMT) Gould Belt Legacy Survey (GBLS) with the SCUBA-2 instrument. We produce a catalogue of sources found by SCUBA-2, and separate these into starless cores and protostars. We determine masses and densities for each of our sources, using source temperatures determined by the Herschel Gould Belt Survey. We compare the properties of starless cores in four different molecular clouds: L1147/58, L1172/74, L1251 and L1228. We find that the core mass functions for each region typically show shallower-than-Salpeter behaviour. We find that L1147/58 and L1228 have a high ratio of starless cores to Class II protostars, while L1251 and L1174 have a low ratio, consistent with the latter regions being more active sites of current star formation, while the former are forming stars less actively. We determine that if modelled as thermally supported Bonnor-Ebert spheres, most of our cores have stable configurations accessible to them. We estimate the external pressures on our cores using archival 13(CO) velocity dispersion measurements and find that our cores are typically pressure confined, rather than gravitationally bound. We perform a virial analysis on our cores, and find that they typically cannot be supported against collapse by internal thermal energy alone, due primarily to the measured external pressures. This suggests that the dominant mode of internal support in starless cores in the Cepheus Flare is either non-thermal motions or internal magnetic fields.
文章类型Article
关键词Stars: Formation Dust Extinction Submillimetre: Ism
WOS标题词Science & Technology ; Physical Sciences
资助者STFC(ST/K002023/1 ; STFC(ST/K002023/1 ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; East Asian Observatory ; East Asian Observatory ; CANARIE ; CANARIE ; Compute Canada ; Compute Canada ; University of Victoria ; University of Victoria ; National Research Council of Canada ; National Research Council of Canada ; Canadian Space Agency ; Canadian Space Agency ; ST/M000877/1 ; ST/M000877/1 ; ST/K501943/1) ; ST/K501943/1) ; STFC(ST/K002023/1 ; STFC(ST/K002023/1 ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; East Asian Observatory ; East Asian Observatory ; CANARIE ; CANARIE ; Compute Canada ; Compute Canada ; University of Victoria ; University of Victoria ; National Research Council of Canada ; National Research Council of Canada ; Canadian Space Agency ; Canadian Space Agency ; ST/M000877/1 ; ST/M000877/1 ; ST/K501943/1) ; ST/K501943/1)
DOI10.1093/mnras/stw2648
关键词[WOS]CLERK MAXWELL TELESCOPE ; YOUNG STELLAR OBJECTS ; INITIAL MASS FUNCTION ; OPHIUCHI MAIN CLOUD ; STAR-FORMATION ; DENSE CORES ; MOLECULAR CLOUDS ; SPITZER C2D ; INTERSTELLAR CLOUDS ; CASSIOPEIA REGION
收录类别SCI
语种英语
资助者STFC(ST/K002023/1 ; STFC(ST/K002023/1 ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; East Asian Observatory ; East Asian Observatory ; CANARIE ; CANARIE ; Compute Canada ; Compute Canada ; University of Victoria ; University of Victoria ; National Research Council of Canada ; National Research Council of Canada ; Canadian Space Agency ; Canadian Space Agency ; ST/M000877/1 ; ST/M000877/1 ; ST/K501943/1) ; ST/K501943/1) ; STFC(ST/K002023/1 ; STFC(ST/K002023/1 ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; East Asian Observatory ; East Asian Observatory ; CANARIE ; CANARIE ; Compute Canada ; Compute Canada ; University of Victoria ; University of Victoria ; National Research Council of Canada ; National Research Council of Canada ; Canadian Space Agency ; Canadian Space Agency ; ST/M000877/1 ; ST/M000877/1 ; ST/K501943/1) ; ST/K501943/1)
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000393780500034
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8240
专题射电天文研究部
作者单位1.Univ Cent Lancashire, Jeremiah Horrocks Inst, Preston PR1 2HE, Lancs, England
2.NRC Herzberg Astron & Astrophys, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada
3.Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 1A1, Canada
4.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands
5.Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany
6.Cavendish Lab, Astrophys Grp, J J Thomson Ave, Cambridge CB3 0HE, England
7.Univ Cambridge, Inst Astron, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England
8.Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada
9.Joint Astron Ctr, 660 N A Ohoku Pl,Univ Pk, Hilo, HI 96720 USA
10.Univ Exeter, Phys & Astron, Stocker Rd, Exeter EX4 4QL, Devon, England
11.LSST Project Off, 933 N Cherry Ave, Tucson, AZ 85719 USA
12.Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
13.ESO, D-85748 Garching, Germany
14.Univ Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys, Oxford Rd,Alan Turing Bldg, Manchester M13 9PL, Lancs, England
15.ETH, Inst Astron, Wolfgang Pauli Str 27, CH-8093 Zurich, Switzerland
16.Univ Montreal, Ctr Rech Astrophys Quebec, C P 6128,Succ Centre Ville, Montreal, PQ H3C 3J7, Canada
17.Univ Montreal, Dept Phys, C P 6128,Succ Centre Ville, Montreal, PQ H3C 3J7, Canada
18.James Madison Univ, Harrisonburg, VA 22807 USA
19.Univ Hertfordshire, Sch Phys Astron & Math, Coll Lane, Hatfield AL10 9AB, Herts, England
20.Liverpool John Moores Univ, Astrophys Res Inst, Birkenhead CH41 1LD, Merseyside, England
21.Imperial Coll London, Blackett Lab, Prince Consort Rd, London SW7 2BB, England
22.Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada
23.Univ Toronto, Dunlap Inst Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada
24.Open Univ, Dept Phys Sci, Milton Keynes MK7 6AA, Bucks, England
25.Rutherford Appleton Lab, Chilton OX11 0NL, Didcot, England
26.Royal Observ, UK Astron Technol Ctr, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland
27.Univ Edinburgh, Royal Observ, Inst Astron, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland
28.Univ Laval, Ctr Rech Astrophys Quebec, 1045 Ave Med, Quebec City, PQ G1V 0A6, Canada
29.Univ Laval, Dept Phys Genie Phys & Opt, 1045 Ave Med, Quebec City, PQ G1V 0A6, Canada
30.UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England
31.McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
32.Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada
33.Univ Western Sydney, Locked Bag 1797, Penrith, NSW 2751, Australia
34.Natl Astron Observ China, 20A Datun Rd, Beijing 100012, Peoples R China
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Pattle, K.,Ward-Thompson, D.,Kirk, J. M.,et al. The JCMT Gould Belt Survey: first results from SCUBA-2 observations of the Cepheus Flare region[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,464(4):4255-4281.
APA Pattle, K..,Ward-Thompson, D..,Kirk, J. M..,Di Francesco, J..,Kirk, H..,...&Zhu, M..(2017).The JCMT Gould Belt Survey: first results from SCUBA-2 observations of the Cepheus Flare region.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,464(4),4255-4281.
MLA Pattle, K.,et al."The JCMT Gould Belt Survey: first results from SCUBA-2 observations of the Cepheus Flare region".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 464.4(2017):4255-4281.
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