中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP). II. Survey Overview: A First Look at 1.3 mm Continuum Maps and Molecular Outflows

文献类型:期刊论文

作者Dutta, Somnath1; Lee, Chin-Fei1; Liu, Tie2,3; Hirano, Naomi1; Liu, Sheng-Yuan1; Tatematsu, Ken’ichi4,5; Kim, Kee-Tae6,7; Shang, Hsien1; Sahu, Dipen1; Kim, Gwanjeong4
刊名The Astrophysical Journal Supplement Series
出版日期2020-11-23
卷号251期号:2页码:35
ISSN号0067-0049
关键词Star formation Star forming regions Early stellar evolution Protostars Low mass stars Stellar jets Stellar winds Astrochemistry Stellar abundances Spectral energy distribution Dense interstellar clouds Interstellar medium
DOI10.3847/1538-4365/abba26
产权排序第24完成单位
文献子类Article
英文摘要

Planck Galactic Cold Clumps (PGCCs) are considered to be the ideal targets to probe the early phases of star formation. We have conducted a survey of 72 young dense cores inside PGCCs in the Orion complex with the Atacama Large Millimeter/submillimeter Array (ALMA) at 1.3 mm (band 6) using three different configurations (resolutions similar to 035, 10, and 70) to statistically investigate their evolutionary stages and substructures. We have obtained images of the 1.3 mm continuum and molecular line emission ((CO)-C-12, and SiO) at an angular resolution of similar to 035 (similar to 140 au) with the combined arrays. We find 70 substructures within 48 detected dense cores with median dust mass similar to 0.093 M and deconvolved size similar to 027. Dense substructures are clearly detected within the central 1000 au of four candidate prestellar cores. The sizes and masses of the substructures in continuum emission are found to be significantly reduced with protostellar evolution from Class 0 to Class I. We also study the evolutionary change in the outflow characteristics through the course of protostellar mass accretion. A total of 37 sources exhibit CO outflows, and 20 (>50%) show high-velocity jets in SiO. The CO velocity extents (Delta Vs) span from 4 to 110 km s(-1) with outflow cavity opening angle width at 400 au ranging from [Theta(obs)](400) similar to 06-39, which corresponds to 334-1257. For the majority of the outflow sources, the Delta Vs show a positive correlation with [Theta(obs)](400), suggesting that as protostars undergo gravitational collapse, the cavity opening of a protostellar outflow widens and the protostars possibly generate more energetic outflows.

学科主题天文学 ; 恒星与银河系 ; 恒星形成与演化
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词CLOUD CORES ; CHEMICAL DIFFERENTIATION ; BIPOLAR OUTFLOWS ; DARK CLOUDS ; DENSE CORES ; COLLAPSE ; EVOLUTION ; SPECTROSCOPY ; TEMPERATURE ; ROTATION
资助项目Ministry of Science and Technology of Taiwan[MoST 107-2119-M-001-040-MY3] ; Academia Sinica[AS-IA-108-M01] ; Chinese academy of sciences[114231KYSB20200009] ; initial fund of scientific research for high-level talents at Shanghai Astronomical Observatory ; National Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; KAKENHI of the Japan Society for the Promotion of Science (JSPS)[18H01259] ; CONICYT[AFB-170002] ; National Natural Science Foundation of China[11873086] ; National Natural Science Foundation of China[U1631237] ; Yunnan Province of China[2017HC018] ; Chinese Academy of Sciences (CAS) ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[NRF-2019R1A2C1010851] ; Spanish MINECO[AYA2017-88754-P] ; National Natural Science Foundation of China (NSFC)[U1631237] ; Chinese Academy of Sciences (CAS)[U1631237] ; NSF[AST-1715876]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000591791800001
资助机构Ministry of Science and Technology of Taiwan[MoST 107-2119-M-001-040-MY3] ; Academia Sinica[AS-IA-108-M01] ; Chinese academy of sciences[114231KYSB20200009] ; initial fund of scientific research for high-level talents at Shanghai Astronomical Observatory ; National Research Council of Canada ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; KAKENHI of the Japan Society for the Promotion of Science (JSPS)[18H01259] ; CONICYT[AFB-170002] ; National Natural Science Foundation of China[11873086, U1631237] ; Yunnan Province of China[2017HC018] ; Chinese Academy of Sciences (CAS) ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[NRF-2019R1A2C1010851] ; Spanish MINECO[AYA2017-88754-P] ; National Natural Science Foundation of China (NSFC)[U1631237] ; Chinese Academy of Sciences (CAS)[U1631237] ; NSF[AST-1715876]
源URL[http://ir.ynao.ac.cn/handle/114a53/23904]  
专题云南天文台_大样本恒星演化研究组
通讯作者Dutta, Somnath
作者单位1.Institute of Astronomy and Astrophysics, Academia Sinica, Roosevelt Rd, Taipei 10617, Taiwan, R.O.C.; sdutta@asiaa.sinica.edu.tw
2.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People’s Republic of China; liutie@shao.ac.cn
3.Key Laboratory for Research in Galaxies and Cosmology, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People’s Republic of China
4.Nobeyama Radio Observatory, National Astronomical Observatory of Japan, National Institutes of Natural Sciences, 462-2 Nobeyama, Minamimaki, Minamisaku, Nagano 384-1305, Japan
5.Department of Astronomical Science, SOKENDAI (The Graduate University for Advanced Studies), 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
6.Korea Astronomy and Space Science Institute (KASI), 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea
7.University of Science and Technology, Korea (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
8.Department of Astronomy, The University of Texas at Austin, 2515 Speedway, Stop C1400 Austin, TX 78712-1205, USA
9.NRC Herzberg Astronomy and Astrophysics, 5071 West Saanich Rd., Victoria, BC V9E 2E7, Canada
10.Department of Physics and Astronomy, University of Victoria, Victoria, BC V8P 5C2, Canada
推荐引用方式
GB/T 7714
Dutta, Somnath,Lee, Chin-Fei,Liu, Tie,et al. ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP). II. Survey Overview: A First Look at 1.3 mm Continuum Maps and Molecular Outflows[J]. The Astrophysical Journal Supplement Series,2020,251(2):35.
APA Dutta, Somnath.,Lee, Chin-Fei.,Liu, Tie.,Hirano, Naomi.,Liu, Sheng-Yuan.,...&Li, Di.(2020).ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP). II. Survey Overview: A First Look at 1.3 mm Continuum Maps and Molecular Outflows.The Astrophysical Journal Supplement Series,251(2),35.
MLA Dutta, Somnath,et al."ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP). II. Survey Overview: A First Look at 1.3 mm Continuum Maps and Molecular Outflows".The Astrophysical Journal Supplement Series 251.2(2020):35.

入库方式: OAI收割

来源:云南天文台

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。