The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry
文献类型：期刊论文
| 作者 | Chakali, Eswaraiah1; Li, Di1,2,3; Furuya, Ray S.4; Hasegawa, Tetsuo5; Ward-Thompson, Derek6; Qiu, Keping7,8; Ohashi, Nagayoshi9; Pattle, Kate10; Sadavoy, Sarah11; Hull, Charles L. H.12,13 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 912期号:2页码:15 |
| ISSN号 | 2041-8205 |
| DOI | 10.3847/2041-8213/abeb1c |
| 通讯作者 | Chakali, Eswaraiah(eswaraiahc@nao.cas.cn) |
| 英文摘要 | We have obtained sensitive dust continuum polarization observations at 850 mu m in the B213 region of Taurus using POL-2 on SCUBA-2 at the James Clerk Maxwell Telescope as part of the B-fields in STar-forming Region Observations (BISTRO) survey. These observations allow us to probe magnetic field (B-field) at high spatial resolution (similar to 2000 au or similar to 0.01 pc at 140 pc) in two protostellar cores (K04166 and K04169) and one prestellar core (Miz-8b) that lie within the B213 filament. Using the Davis-Chandrasekhar-Fermi method, we estimate the B-field strengths in K04166, K04169, and Miz-8b to be 38 +/- 14, 44 +/- 16, and 12 +/- 5 mu G, respectively. These cores show distinct mean B-field orientations. The B-field in K04166 is well ordered and aligned parallel to the orientations of the core minor axis, outflows, core rotation axis, and large-scale uniform B-field, in accordance with magnetically regulated star formation via ambipolar diffusion taking place in K04166. The B-field in K04169 is found to be ordered but oriented nearly perpendicular to the core minor axis and large-scale B-field and not well correlated with other axes. In contrast, Miz-8b exhibits a disordered B-field that shows no preferred alignment with the core minor axis or large-scale field. We found that only one core, K04166, retains a memory of the large-scale uniform B-field. The other two cores, K04169 and Miz-8b, are decoupled from the large-scale field. Such a complex B-field configuration could be caused by gas inflow onto the filament, even in the presence of a substantial magnetic flux. |
| WOS关键词 | AXISYMMETRICAL CLOUD CORES ; STAR-FORMATION ; MOLECULAR CLOUD ; AMBIPOLAR-DIFFUSION ; IMAGING POLARIMETRY ; DARK CLOUDS ; GOULD BELT ; COLLAPSE ; SCUBA-2 ; CONTRACTION |
| 资助项目 | National Natural Science Foundation of China (NSFC)[11988101] ; National Natural Science Foundation of China (NSFC)[11725313] ; National Natural Science Foundation of China (NSFC)[U1931117] ; National Natural Science Foundation of China (NSFC)[U1731237] ; International Partnership Program of Chinese Academy of Sciences[114A11KYSB20160008] ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology[NRF-2019R1A2C1010851] ; Ministry of Science and Technology (MOST) in Taiwan[MOST 109-2112-M-001-051] ; NAOJ Fellowship ; JSPS KAKENHI[18K13586] ; JSPS KAKENHI[20K14527] ; New Faculty Startup Fund from Seoul National University ; National Research Council of Canada ; NSF[1715876] ; center for Women In Science, Engineering and Technology (WISET) - Ministry of Science and ICT (MSIT)[WISET-2019-288] ; center for Women In Science, Engineering and Technology (WISET) - Ministry of Science and ICT (MSIT)[WISET-2020-247] ; Vietnam National Foundation for Science and Technology Development (NAFOSTED)[103.99-2019.368] ; [MOST 108-2112-M-001-004-MY2] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000651529400001 |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; International Partnership Program of Chinese Academy of Sciences ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology ; Ministry of Science and Technology (MOST) in Taiwan ; NAOJ Fellowship ; JSPS KAKENHI ; New Faculty Startup Fund from Seoul National University ; National Research Council of Canada ; NSF ; center for Women In Science, Engineering and Technology (WISET) - Ministry of Science and ICT (MSIT) ; Vietnam National Foundation for Science and Technology Development (NAFOSTED) |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4016]  |
| 专题 | 恒星形成与演化研究团组 |
| 通讯作者 | Chakali, Eswaraiah |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ KwaZulu Natal, NAOC UKZN Computat Astrophys Ctr, ZA-4000 Durban, South Africa 4.Tokushima Univ, Inst Liberal Arts & Sci, Minami Jousanajima Machi 1-1, Tokushima 7708502, Japan 5.Natl Inst Nat Sci, Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan 6.Univ Cent Lancashire, Jeremiah Horrocks Inst, Preston PR1 2HE, Lancs, England 7.Nanjing Univ, Sch Astron & Space Sci, 163 Xianlin Ave, Nanjing 210023, Peoples R China 8.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210023, Peoples R China 9.Acad Sinica, Inst Astron & Astrophys, 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan 10.Natl Univ Ireland Galway, Ctr Astron, Sch Phys, Univ Rd, Galway H91 TK33, Ireland |
| 推荐引用方式 GB/T 7714 | Chakali, Eswaraiah,Li, Di,Furuya, Ray S.,et al. The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry[J]. ASTROPHYSICAL JOURNAL LETTERS,2021,912(2):15. |
| APA | Chakali, Eswaraiah.,Li, Di.,Furuya, Ray S..,Hasegawa, Tetsuo.,Ward-Thompson, Derek.,...&van Loo, Sven.(2021).The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry.ASTROPHYSICAL JOURNAL LETTERS,912(2),15. |
| MLA | Chakali, Eswaraiah,et al."The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry".ASTROPHYSICAL JOURNAL LETTERS 912.2(2021):15. |
入库方式： OAI收割
来源：新疆天文台
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。