ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): How Do Dense Core Properties Affect the Multiplicity of Protostars?
文献类型:期刊论文
作者 | Luo, Qiu-yi27,28; Liu, Tie28; Tatematsu, Ken'ichi25,26; Liu, Sheng-Yuan24; Li, Pak Shing23; Francesco, James di21,22; Johnstone, Doug21,22; Goldsmith, Paul F.20; Dutta, Somnath24; Hirano, Naomi24 |
刊名 | ASTROPHYSICAL JOURNAL |
出版日期 | 2022-06-01 |
卷号 | 931期号:2 |
ISSN号 | 0004-637X |
关键词 | Star formation (1569) Early stellar evolution (434) Protostars (1302) Low mass stars (2050) Multiple stars (1081) Dense interstellar clouds (371) Interstellar medium (847) |
DOI | 10.3847/1538-4357/ac66d9 |
产权排序 | 第15完成单位 |
文献子类 | Article |
英文摘要 | During the transition phase from a prestellar to a protostellar cloud core, one or several protostars can form within a single gas core. The detailed physical processes of this transition, however, remain unclear. We present 1.3 mm dust continuum and molecular line observations with the Atacama Large Millimeter/submillimeter Array toward 43 protostellar cores in the Orion molecular cloud complex (lambda Orionis, Orion B, and Orion A) with an angular resolution of similar to 0.'' 35 (similar to 140 au). In total, we detect 13 binary/multiple systems. We derive an overall multiplicity frequency (MF) of 28% +/- 4% and a companion star fraction (CSF) of 51% +/- 6%, over a separation range of 300-8900 au. The median separation of companions is about 2100 au. The occurrence of stellar multiplicity may depend on the physical characteristics of the dense cores. Notably, those containing binary/multiple systems tend to show a higher gas density and Mach number than cores forming single stars. The integral-shaped filament of the Orion A giant molecular cloud (GMC), which has the highest gas density and hosts high-mass star formation in its central region (the Orion Nebula cluster), shows the highest MF and CSF among the Orion GMCs. In contrast, the lambda Orionis GMC has a lower MF and CSF than the Orion B and Orion A GMCs, indicating that feedback from H ii regions may suppress the formation of multiple systems. We also find that the protostars comprising a binary/multiple system are usually at different evolutionary stages. |
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 | STAR-FORMATION ; MOLECULAR CLOUD ; PROTOSTELLAR SYSTEMS ; INFRARED SURVEY ; STELLAR ; BINARY ; EVOLUTION ; MASS ; FRAGMENTATION ; SEARCH |
资助项目 | National Natural Science Foundation of China (NSFC)[12073061] ; National Natural Science Foundation of China (NSFC)[12122307] ; International Partnership Program of the Chinese Academy of Sciences (CAS)[114231KYSB20200009] ; Shanghai Pujiang Program[20PJ1415500] ; China Manned Space Project[CMS-CSST-2021-B06] ; Japan Society for the Promotion of Science (JSPS) KAKENHI[20H05645] ; NRC Canada ; NSERC Discovery Grants ; Ministry of Science and Technology of Taiwan[MoST 107-2119-M-001-040-MY3] ; Ministry of Science and Technology of Taiwan[110-2112-M-001-021-MY3] ; Academia Sinica[AS-IA-108-M01] ; National Aeronautics and Space Administration[80NM0018D0004] ; National Research Foundation of Korea - Korean government (MSIT)[2021R1A2C1011718] ; NSFC projects[11873086] ; NSFC projects[U1631237] ; CAS ; NSFC[12033005] ; China Postdoctoral Science Foundation[2021M700248] ; JSPS[18H01259] ; MCIN/AEI[PID2020-115892GB-I00] ; ANID BASAL projects[ACE210002] ; ANID BASAL projects[FB210003] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:000806537400001 |
资助机构 | National Natural Science Foundation of China (NSFC)[12073061, 12122307] ; International Partnership Program of the Chinese Academy of Sciences (CAS)[114231KYSB20200009] ; Shanghai Pujiang Program[20PJ1415500] ; China Manned Space Project[CMS-CSST-2021-B06] ; Japan Society for the Promotion of Science (JSPS) KAKENHI[20H05645] ; NRC Canada ; NSERC Discovery Grants ; Ministry of Science and Technology of Taiwan[MoST 107-2119-M-001-040-MY3, 110-2112-M-001-021-MY3] ; Academia Sinica[AS-IA-108-M01] ; National Aeronautics and Space Administration[80NM0018D0004] ; National Research Foundation of Korea - Korean government (MSIT)[2021R1A2C1011718] ; NSFC projects[11873086, U1631237] ; CAS ; NSFC[12033005] ; China Postdoctoral Science Foundation[2021M700248] ; JSPS[18H01259] ; MCIN/AEI[PID2020-115892GB-I00] ; ANID BASAL projects[ACE210002, FB210003] |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25216] |
专题 | 云南天文台_其他 |
通讯作者 | Luo, Qiu-yi |
作者单位 | 1.LPENS, Ecole Normale Supérieure, Université PSL, CNRS, Sorbonne Université, Université de Paris, 75005 Paris, France 2.Institut de Ciències del Cosmos, Universitat de Barcelona, IEEC-UB, Martí i Franquès 1, E-08028 Barcelona, Spain; 3.National Astronomical Observatory of Japan, National Institutes of Natural Sciences, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; 4.National Taiwan University (NTU), No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan (R.O.C.); 5.Kavli Institute for Astronomy and Astrophysics, Peking University, Haidian District, Beijing 100871, People's Republic of China; 6.Department of Astronomy, School of Physics, Peking University, Beijing 100871, People's Republic of China; 7.SNU Astronomy Research Center, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; 8.Department of Earth Science Education, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; 9.Armagh Observatory and Planetarium, College Hill, Armagh, BT61 9DB, UK; 10.Astrophysics Research Institute, Liverpool John Moores University, IC2, Liverpool Science Park, 146 Brownlow Hill, Liverpool, L3 5RF, UK; |
推荐引用方式 GB/T 7714 | Luo, Qiu-yi,Liu, Tie,Tatematsu, Ken'ichi,et al. ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): How Do Dense Core Properties Affect the Multiplicity of Protostars?[J]. ASTROPHYSICAL JOURNAL,2022,931(2). |
APA | Luo, Qiu-yi.,Liu, Tie.,Tatematsu, Ken'ichi.,Liu, Sheng-Yuan.,Li, Pak Shing.,...&Shen, Zhi-Qiang.(2022).ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): How Do Dense Core Properties Affect the Multiplicity of Protostars?.ASTROPHYSICAL JOURNAL,931(2). |
MLA | Luo, Qiu-yi,et al."ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): How Do Dense Core Properties Affect the Multiplicity of Protostars?".ASTROPHYSICAL JOURNAL 931.2(2022). |
入库方式: OAI收割
来源:云南天文台
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