The JCMT Gould Belt Survey: A First Look at the Auriga-California Molecular Cloud with SCUBA-2

doi:10.3847/1538-4357/aa911f

	The JCMT Gould Belt Survey: A First Look at the Auriga-California Molecular Cloud with SCUBA-2
	Knee, L. B. G.3; Duarte-Cabral, A.11; Fiege, J.23; Friberg, P.5; Friesen, R.24; Fuller, G. A.16; Graves, S.5; Greaves, J.25; Gregson, J.1,26; Holland, W.27,28
刊名	ASTROPHYSICAL JOURNAL
	2018-01-10
卷号	852 期号:2
关键词	Ism: Clouds Stars: Formation Submillimeter: Ism
DOI	10.3847/1538-4357/aa911f
文献子类	Article
英文摘要	We present 850 and 450 mu m observations of the dense regions within the Auriga-California molecular cloud using SCUBA-2 as part of the JCMT Gould Belt Legacy Survey to identify candidate protostellar objects, measure the masses of their circumstellar material (disk and envelope), and compare the star formation to that in the Orion A molecular cloud. We identify 59 candidate protostars based on the presence of compact submillimeter emission, complementing these observations with existing Herschel/SPIRE maps. Of our candidate protostars, 24 are associated with young stellar objects (YSOs) in the Spitzer and Herschel/PACS catalogs of 166 and 60 YSOs, respectively (177 unique), confirming their protostellar nature. The remaining 35 candidate protostars are in regions, particularly around LkH alpha 101, where the background cloud emission is too bright to verify or rule out the presence of the compact 70 mu m emission that is expected for a protostellar source. We keep these candidate protostars in our sample but note that they may indeed be prestellar in nature. Our observations are sensitive to the high end of the mass distribution in Auriga-Cal. We find that the disparity between the richness of infrared star-forming objects in Orion A and the sparsity in Auriga-Cal extends to the submillimeter, suggesting that the relative star formation rates have not varied over the Class II lifetime and that Auriga-Cal will maintain a lower star formation efficiency.
WOS关键词	CLERK MAXWELL TELESCOPE ; CIRCUMSTELLAR DUST DISKS ; YOUNG STELLAR OBJECTS ; CLUSTER ; REDUCTION ; EMISSION ; NEARBY ; DISCS ; MASS
WOS研究方向	Astronomy & Astrophysics
语种	英语
WOS记录号	WOS:000419604300010
资助机构	Natural Science & Engineering Research Council (NSERC) of Canada ; Natural Science & Engineering Research Council (NSERC) of Canada ; Alfred Bader Scholarship in Memory of Jean Royce ; Alfred Bader Scholarship in Memory of Jean Royce ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; 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 ; Natural Science & Engineering Research Council (NSERC) of Canada ; Natural Science & Engineering Research Council (NSERC) of Canada ; Alfred Bader Scholarship in Memory of Jean Royce ; Alfred Bader Scholarship in Memory of Jean Royce ; Canada Foundation for Innovation ; Canada Foundation for Innovation ; 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
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/20321]
专题	国家天文台_射电天文研究部
作者单位	1.Rutherford Appleton Lab, Didcot OX11 0NL, Oxon, England 2.Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 1A1, Canada 3.NRC Herzberg Astron & Astrophys, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada 4.Univ Texas Austin, Dept Astron, 1 Univ Stn C1400, Austin, TX 78712 USA 5.Joint Astron Ctr, 660 N Aohoku Pl,Univ Pk, Hilo, HI 96720 USA 6.Univ Cent Lancashire, Jeremiah Horrocks Inst, Preston PR1 2HE, Lancs, England 7.Cavendish Lab, Astrophys Grp, JJ Thomson Ave, Cambridge CB3 0HE, England 8.Univ Cambridge, Inst Astron, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England 9.Imperial Coll London, Blackett Lab, Prince Consort Rd, London SW7 2BB, England 10.Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada
推荐引用方式 GB/T 7714	Knee, L. B. G.,Duarte-Cabral, A.,Fiege, J.,et al. The JCMT Gould Belt Survey: A First Look at the Auriga-California Molecular Cloud with SCUBA-2[J]. ASTROPHYSICAL JOURNAL,2018,852(2).
APA	Knee, L. B. G..,Duarte-Cabral, A..,Fiege, J..,Friberg, P..,Friesen, R..,...&Zhu, M..(2018).The JCMT Gould Belt Survey: A First Look at the Auriga-California Molecular Cloud with SCUBA-2.ASTROPHYSICAL JOURNAL,852(2).
MLA	Knee, L. B. G.,et al."The JCMT Gould Belt Survey: A First Look at the Auriga-California Molecular Cloud with SCUBA-2".ASTROPHYSICAL JOURNAL 852.2(2018).