Characterization of dense Planck clumps observed with Herschel and SCUBA-2 | |
Mannfors, E.1; Juvela, M.1; Bronfman, L.2; Eden, D. J.3; He JH(何金华)2,4,5; Kim, G.6; Kim, K.-T.7,8; Kirppu, H.1; Liu, T.9; Montillaud, J.10; Parsons, H.11; Sanhueza, P.12; Shang, H.14; Soam, A.15; Tatematsu, K.6,13; Traficante, A.16; Väisälä, M. S.14; Lee, C. W.7,8 | |
发表期刊 | ASTRONOMY & ASTROPHYSICS |
2021-10-22 | |
卷号 | 654 |
DOI | 10.1051/0004-6361/202037791 |
产权排序 | 第4完成单位 |
收录类别 | SCI ; EI |
关键词 | methods: observational stars: formation ISM: clouds dust, extinction infrared: ISM ISM: general |
摘要 | Context. Although the basic processes of star formation (SF) are known, more research is needed on SF across multiple scales and environments. The Planck all-sky survey provided a large catalog of Galactic cold clouds and clumps that have been the target of several follow-up surveys. Aims. We aim to characterize a diverse selection of dense, potentially star-forming cores, clumps, and clouds within the Milky Way in terms of their dust emission and SF activity. Methods. We studied 53 fields that have been observed in the JCMT SCUBA-2 continuum survey SCOPE and have been mapped with Herschel. We estimated dust properties by fitting Herschel observations with modified blackbody functions, studied the relationship between dust temperature and dust opacity spectral index beta, and estimated column densities. We extracted clumps from the SCUBA-2 850 mu m maps with the FellWalker algorithm and examined their masses and sizes. Clumps are associated with young stellar objects found in several catalogs. We estimated the gravitational stability of the clumps with virial analysis. The clumps are categorized as unbound starless, prestellar, or protostellar. Results. We find 529 dense clumps, typically with high column densities from (0.3-4.8) x 10(22) cm(-2), with a mean of (1.5 +/- 0.04) x10(22) cm(-2), low temperatures (T similar to 10-20 K), and estimated submillimeter beta = 1.7 +/- 0.1. We detect a slight increase in opacity spectral index toward millimeter wavelengths. Masses of the sources range from 0.04 M-circle dot to 4259 M-circle dot. Mass, linear size, and temperature are correlated with distance. Furthermore, the estimated gravitational stability is dependent on distance, and more distant clumps appear more virially bound. Finally, we present a catalog of properties of the clumps. Conclusions. Our sources present a large array of SF regions, from high-latitude, nearby diffuse clouds to large SF complexes near the Galactic center. Analysis of these regions will continue with the addition of molecular line data, which will allow us to study the densest regions of the clumps in more detail. |
资助项目 | Academy of FinlandAcademy of FinlandEuropean Commission[285769] ; University of Helsinki doctoral school in particle physics and universe sciences (PAPU) ; CONICYT project Basal[AFB-170002] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11873086] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[U1631237] ; Yunnan Province of China[2017HC018] ; Chinese Academy of Sciences (CAS)Chinese Academy of Sciences ; Japan Society for the Promotion of Science (JSPS)Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of Science[18H01259] ; National Science FoundationNational Science Foundation (NSF)[AST-1715876] ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[NRF-2019R1A2C1010851] ; international partnership program of Chinese academy of sciences[114231KYSB20200009] ; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[12073061] ; National Key R&D Program of China[2017YFA0402700] ; Science and Technology Facilities Council of the United KingdomUK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC) ; Canada Foundation for InnovationCanada Foundation for InnovationCGIAR ; Canadian Space AgencyCanadian Space Agency ; [M16AL003] ; [M15AI05] |
项目资助者 | Academy of FinlandAcademy of FinlandEuropean Commission[285769] ; University of Helsinki doctoral school in particle physics and universe sciences (PAPU) ; CONICYT project Basal[AFB-170002] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC)[11873086, U1631237] ; Yunnan Province of China[2017HC018] ; Chinese Academy of Sciences (CAS)Chinese Academy of Sciences ; Japan Society for the Promotion of Science (JSPS)Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of Science[18H01259] ; National Science FoundationNational Science Foundation (NSF)[AST-1715876] ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[NRF-2019R1A2C1010851] ; international partnership program of Chinese academy of sciences[114231KYSB20200009] ; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[12073061] ; National Key R&D Program of China[2017YFA0402700] ; Science and Technology Facilities Council of the United KingdomUK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC) ; Canada Foundation for InnovationCanada Foundation for InnovationCGIAR ; Canadian Space AgencyCanadian Space Agency ; [M16AL003] ; [M15AI05] |
语种 | 英语 |
学科领域 | 天文学 ; 恒星与银河系 ; 恒星形成与演化 |
文章类型 | Article |
出版者 | EDP SCIENCES S A |
出版地 | 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE |
ISSN | 0004-6361 |
URL | 查看原文 |
WOS记录号 | WOS:000709943900005 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
关键词[WOS] | GOULD BELT SURVEY ; STAR-FORMING REGIONS ; PIXEL BOLOMETER CAMERA ; GALACTIC COLD CLUMPS ; OPHIUCHI MAIN CLOUD ; PHYSICAL-PROPERTIES ; MOLECULAR CLOUD ; HI-GAL ; MU-M ; MAGNETIC-FIELDS |
EI入藏号 | 20214411100975 |
EI主题词 | Dust |
EI分类号 | 451.1 Air Pollution Sources - 657.2 Extraterrestrial Physics and Stellar Phenomena - 711 Electromagnetic Waves - 741.1 Light/Optics |
引用统计 | |
文献类型 | 期刊论文 |
版本 | 出版稿 |
条目标识符 | http://ir.ynao.ac.cn/handle/114a53/24639 |
专题 | 大样本恒星演化研究组 |
通讯作者 | Mannfors, E. |
作者单位 | 1.Department of Physics, PO box 64, 00014 University of Helsinki, Finland; 2.Astronomy Department, Universidad de Chile, Camino el Observatorio 1515, Las Condes, Santiago de Chile, Chile; 3.Astrophysics Research Institute, Liverpool John Moores University, IC2, Liverpool Science Park, 146 Brownlow Hill, Liverpool L3 5RF, UK; 4.Yunnan Observatories, Chinese Academy of Sciences, Phoenix Mountain, East Suburb of Kunming, 650216 Yunnan, PR China; 5.Chinese Academy of Sciences South America Center for Astronomy, National Astronomical Observatories, CAS, Beijing 100101, PR China; 6.Nobeyama Radio Observatory, National Astronomical Observatory of Japan, National Institutes of Natural Sciences, Nobeyama, Minamimaki, Minamisaku, Nagano 384-1305, Japan; 7.Korea Astronomy and Space Science Institute, 776 Daedeokdae-ro, Yuseong-gu, Daejon 34055, Republic of Korea; 8.University of Science & Technology, 176 Gajeong-dong, Yuseong-gu, Daejeon, Republic of Korea; 9.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, PR China; 10.Institut UTINAM – UMR 6213 – CNRS – Univ. Bourgogne Franche Comté, OSU THETA, 41bis avenue de l’Observatoire, 25000 Besançon, France; 11.East Asian Observatory, 660 N. A’ohōkū Place, University Park, Hilo, HI 96720, USA; 12.National Astronomical Observatory of Japan, National Institutes of Natural Sciences, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; 13.Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; 14.Institute of Astronomy and Astrophysics, Academia Sinica. 11F of Astronomy-Mathematics Building, AS/NTU No.1, Section 4, Roosevelt Rd, Taipei 10617, Taiwan; 15.SOFIA Science Center, Universities Space Research Association, NASA Ames Research Center, Moffett Field, CA 94035, USA; 16.IAPS-INAF, via Fosso del Cavaliere 100, 00133 Rome, Italy |
推荐引用方式 GB/T 7714 | Mannfors, E.,Juvela, M.,Bronfman, L.,et al. Characterization of dense Planck clumps observed with Herschel and SCUBA-2[J]. ASTRONOMY & ASTROPHYSICS,2021,654. |
APA | Mannfors, E..,Juvela, M..,Bronfman, L..,Eden, D. J..,He JH.,...&Lee, C. W..(2021).Characterization of dense Planck clumps observed with Herschel and SCUBA-2.ASTRONOMY & ASTROPHYSICS,654. |
MLA | Mannfors, E.,et al."Characterization of dense Planck clumps observed with Herschel and SCUBA-2".ASTRONOMY & ASTROPHYSICS 654(2021). |
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