The JCMT BISTRO Survey: The Magnetic Fields of the IC 348 Star-forming Region
文献类型：期刊论文
| 作者 | Choi,Youngwoo66; Kwon,Woojin62,64,65; Pattle,Kate61; Arzoumanian,Doris60; Bourke,Tyler L.58,59; Hoang,Thiem56,57; Hwang,Jihye57; Koch,Patrick M.55; Sadavoy,Sarah54; Bastien,Pierre52 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2024-11-29 |
| 卷号 | 977期号:1页码:32 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad88ed |
| 产权排序 | 63 |
| 通讯作者 | Kwon, Woojin(wkwon@snu.ac.kr) |
| 英文摘要 | Abstract We present 850 μm polarization observations of the IC 348 star-forming region in the Perseus molecular cloud as part of the B-fields In STar-forming Region Observation survey. We study the magnetic properties of two cores (HH 211 MMS and IC 348 MMS) and a filamentary structure of IC 348. We find that the overall field tends to be more perpendicular than parallel to the filamentary structure of the region. The polarization fraction decreases with intensity, and we estimate the trend by power law and the mean of the Rice distribution fittings. The power indices for the cores are much smaller than 1, indicative of possible grain growth to micron size in the cores. We also measure the magnetic field strengths of the two cores and the filamentary area separately by applying the Davis–Chandrasekhar–Fermi method and its alternative version for compressed medium. The estimated mass-to-flux ratios are 0.45–2.20 and 0.63–2.76 for HH 211 MMS and IC 348 MMS, respectively, while the ratios for the filament are 0.33–1.50. This result may suggest that the transition from subcritical to supercritical conditions occurs at the core scale (～0.05 pc) in the region. In addition, we study the energy balance of the cores and find that the relative strength of turbulence to the magnetic field tends to be stronger for IC 348 MMS than for HH 211 MMS. The result could potentially explain the different configurations inside the two cores: a single protostellar system in HH 211 MMS and multiple protostars in IC 348 MMS. |
| WOS关键词 | PERSEUS MOLECULAR CLOUD ; HUB-FILAMENT STRUCTURE ; GOULD BELT SURVEY ; RADIATIVE TORQUES ; GRAIN ALIGNMENT ; MU-M ; PRESTELLAR CORES ; FORMATION RATES ; DUST EMISSION ; RADIO-SOURCES |
| 资助项目 | National Research Foundation of Korea (NRF) - Korea government (MSIT)[RS-2024-00342488] ; National Research Foundation of Korea (NRF) - Korea government (MSIT)[RS-2024-00416859] ; National Research Foundation of Korea (NRF) - Korea government (MSIT)[URF\R1\211322] ; Spanish MICINN[PID2022-141915NB-C21] ; National Science and Technology Council of Taiwan[112-2112-M-007-011] ; National Science and Technology Council of Taiwan[113-2112-M-007-004] ; National Natural Science Foundation of China (NSFC)[12425304] ; National Natural Science Foundation of China (NSFC)[U1731237] ; National Key R&D Program of China[2017YFA0402700] ; Ministry of Science and Technology of Taiwan[111-2112-M-005-018-MY3] ; NRC Canada ; NSERC Discovery Grant ; international Gemini Observatory ; NSF NOIRLab ; U.S. National Science Foundation ; United States of America ; James Clerk Maxwell Telescope (JCMT) ; Korea Astronomy and Space Science Institute ; Center for Astronomical Mega-Science ; Science and Technology Facilities Council of the United Kingdom ; Canada Foundation for Innovation ; National Research Council of Canada ; Netherlands Organisation for Scientific Research[M17BL011] ; Netherlands Organisation for Scientific Research[M06BGT02] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | IOP:APJ_977_1_32 |
| 出版者 | The American Astronomical Society |
| 资助机构 | National Research Foundation of Korea (NRF) - Korea government (MSIT) ; Spanish MICINN ; National Science and Technology Council of Taiwan ; National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; Ministry of Science and Technology of Taiwan ; NRC Canada ; NSERC Discovery Grant ; international Gemini Observatory ; NSF NOIRLab ; U.S. National Science Foundation ; United States of America ; James Clerk Maxwell Telescope (JCMT) ; Korea Astronomy and Space Science Institute ; Center for Astronomical Mega-Science ; Science and Technology Facilities Council of the United Kingdom ; Canada Foundation for Innovation ; National Research Council of Canada ; Netherlands Organisation for Scientific Research |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7223]  |
| 专题 | 恒星形成与演化研究团组 |
| 作者单位 | 1.Joint ALMA Observatory, Alonso de Córdova 3107, Vitacura, Santiago, Chile 2.Armagh Observatory and Planetarium, College Hill, Armagh BT61 9DB, UK 3.Jet Propulsion Laboratory, M/S 169-506, 4800 Oak Grove Drive, Pasadena, CA 91109, USA 4.Laboratoire d’Astrophysique (AIM), Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM, 91191 Gif-sur-Yvette, France 5.Department of Astronomy, Beijing Normal University, Beijing 100875, People's Republic of China 6.Department of Physics, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima, Hiroshima 739-8526, Japan 7.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, Xinjiang, People's Republic of China 8.CAS Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences, People's Republic of China 9.Department of Astronomy, Yunnan University, Kunming, 650091, People's Republic of China 10.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People's Republic of China |
| 推荐引用方式 GB/T 7714 | Choi,Youngwoo,Kwon,Woojin,Pattle,Kate,et al. The JCMT BISTRO Survey: The Magnetic Fields of the IC 348 Star-forming Region[J]. The Astrophysical Journal,2024,977(1):32. |
| APA | Choi,Youngwoo.,Kwon,Woojin.,Pattle,Kate.,Arzoumanian,Doris.,Bourke,Tyler L..,...&van Loo,Sven.(2024).The JCMT BISTRO Survey: The Magnetic Fields of the IC 348 Star-forming Region.The Astrophysical Journal,977(1),32. |
| MLA | Choi,Youngwoo,et al."The JCMT BISTRO Survey: The Magnetic Fields of the IC 348 Star-forming Region".The Astrophysical Journal 977.1(2024):32. |
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