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| The TOP-SCOPE Survey of PGCCs: PMO and SCUBA-2 Observations of 64 PGCCs in the Second Galactic Quadrant | |
Zhang,Chuan-Peng1,2,3; Liu,Tie4,5; Yuan,Jinghua1; Sanhueza,Patricio6; Traficante,Alessio7; Li,Guang-Xing8; Li,Di1,3,9; Tatematsu,Ken’ichi6; Wang,Ke10; Lee,Chang Won4,11; Samal,Manash R.12; Eden,David13; Marston,Anthony14; Liu,Xiao-Lan1; Zhou,Jian-Jun15 ; Li,Pak Shing16; Koch,Patrick M.17; Xu,Jin-Long1; Wu,Yuefang18; Juvela,Mika19; Zhang,Tianwei18; Alina,Dana20; Goldsmith,Paul F.21; Tóth,L. V.22,23; Wang,Jun-Jie1; Kim,Kee-Tae4
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| 2018-06-20 | |
| Source Publication | The Astrophysical Journal Supplement Series
 |
| ISSN | 0067-0049 |
| Volume | 236Issue:2Pages:49 |
| Contribution Rank | 15 |
| Abstract | Abstract In order to understand the initial conditions and early evolution of star formation in a wide range of Galactic environments, we carried out an investigation of 64 Planck Galactic cold clumps (PGCCs) in the second quadrant of the Milky Way. Using the 13CO and C18O J?=?1–0 lines and 850 μm continuum observations, we investigated cloud fragmentation and evolution associated with star formation. We extracted 468 clumps and 117 cores from the 13CO line and 850 μm continuum maps, respectively. We made use of the Bayesian distance calculator and derived the distances of all 64 PGCCs. We found that in general, the mass–size plane follows a relation of m?～?r1.67. At a given scale, the masses of our objects are around 1/10 of that of typical Galactic massive star-forming regions. Analysis of the clump and core masses, virial parameters, densities, and mass–size relation suggests that the PGCCs in our sample have a low core formation efficiency (～3.0%), and most PGCCs are likely low-mass star-forming candidates. Statistical study indicates that the 850 μm cores are more turbulent, more optically thick, and denser than the 13CO clumps for star formation candidates, suggesting that the 850 μm cores are likely more appropriate future star formation candidates than the 13CO clumps. |
| Keyword | dust, extinction ISM: clouds ISM: structure stars: formation |
| DOI | 10.3847/1538-4365/aac513 |
| Language | 英语 |
| WOS ID | IOP:0067-0049-236-2-aac513 |
| Publisher | The American Astronomical Society |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/1933 |
| Collection | 射电天文研究室_恒星形成与演化研究团组 110米口径全可动射电望远镜（QTT）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题1：大样本射电天体的观测和前沿问题研究 |
| Affiliation | 1.National Astronomical Observatories, Chinese Academy of Sciences, 100012 Beijing, People’s Republic of China; cpzhang@nao.cas.cn 2.Max-Planck-Institut für Astronomie, K?nigstuhl 17, D-69117 Heidelberg, Germany 3.CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, 100012 Beijing, People’s Republic of China 4.Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea 5.East Asian Observatory, 660 N. A’ohōkū Place, Hilo, HI 96720-2700, USA 6.National Astronomical Observatory of Japan, National Institutes of Natural Sciences, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan 7.IAPS—INAF, via Fosso del Cavaliere, 100, I-00133 Roma, Italy 8.University Observatory Munich, Scheinerstrasse 1, D-81679 Munich, Germany 9.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 10.European Southern Observatory, Karl-Schwarzschild-Str.2, D-85748 Garching bei München, Germany 11.Korea University of Science & Technology, 176 Gajeong-dong, Yuseong-gu, Daejeon, Republic of Korea 12.Graduate Institute of Astronomy, National Central University 300, Jhongli City, Taoyuan County 32001, Taiwan 13.Astrophysics Research Institute, Liverpool John Moores University, IC2, Liverpool Science Park, 146 Brownlow Hill, Liverpool, L3 5RF, UK 14.ESA/STScI, 3700 San Martin Dr., Baltimore, MD 21218, USA 15.Xinjiang Astronomical Observatory, CAS, 150, Science 1-street, 830011 Urumqi, People’s Republic of China 16.Astronomy Department, University of California, Berkeley, CA 94720, USA 17.Academia Sinica, Institute of Astronomy and Astrophysics, P.O. Box 23-141, Taipei 106, Taiwan 18.Department of Astronomy, Peking University, 100871 Beijing, People’s Republic of China 19.Department of Physics, P.O.Box 64, FI-00014, University of Helsinki, Finland 20.Physics Department, Nazarbayev University, Kabanbay batyr avenue 53, 010000 Astana, Kazakhstan 21.Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA 22.Loránd E?tv?s University, Department of Astronomy, Pázmány P.s. 1/a, H-1117 Budapest, Hungary 23.Konkoly Observatory of the Hungarian Academy of Sciences, H-1121 Budapest, Konkoly Thege Miklós út 15–17, Hungary |
| Recommended Citation GB/T 7714 | Zhang,Chuan-Peng,Liu,Tie,Yuan,Jinghua,et al. The TOP-SCOPE Survey of PGCCs: PMO and SCUBA-2 Observations of 64 PGCCs in the Second Galactic Quadrant[J]. The Astrophysical Journal Supplement Series,2018,236(2):49. |
| APA | Zhang,Chuan-Peng.,Liu,Tie.,Yuan,Jinghua.,Sanhueza,Patricio.,Traficante,Alessio.,...&Kim,Kee-Tae.(2018).The TOP-SCOPE Survey of PGCCs: PMO and SCUBA-2 Observations of 64 PGCCs in the Second Galactic Quadrant.The Astrophysical Journal Supplement Series,236(2),49. |
| MLA | Zhang,Chuan-Peng,et al."The TOP-SCOPE Survey of PGCCs: PMO and SCUBA-2 Observations of 64 PGCCs in the Second Galactic Quadrant".The Astrophysical Journal Supplement Series 236.2(2018):49. |
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| Zhang-2018-The TOP-S（6908KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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