The JCMT BISTRO Survey: multiwavelength polarimetry of bright regions in NGC 2071 in the far-infrared/submillimetre range, with POL-2 and HAWC+
文献类型：期刊论文
| 作者 | Fanciullo, Lapo35; Kemper, Francisca34,35; Pattle, Kate33; Koch, Patrick M.35; Sadavoy, Sarah32; Coude, Simon31; Soam, Archana30,31; Thiem Hoang29; Onaka, Takashi27,28; Le Gouellec, Valentin J. M.26,31 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2022-03-24 |
| 卷号 | 512期号:2页码:1985-2002 |
| ISSN号 | 0035-8711 |
| 关键词 | polarization ISM: clouds ISM: individual objects (NGC 2071) ISM: magnetic fields submillimetre: ISM |
| DOI | 10.1093/mnras/stac528 |
| 通讯作者 | Fanciullo, Lapo(lfanciullo.astro@gmail.com) |
| 英文摘要 | Polarized dust emission is a key tracer in the study of interstellar medium and of star formation. The observed polarization, however, is a product of magnetic field structure, dust grain properties, and grain alignment efficiency, as well as their variations in the line of sight, making it difficult to interpret polarization unambiguously. The comparison of polarimetry at multiple wavelengths is a possible way of mitigating this problem. We use data from HAWC+ /SOFIA and from SCUBA-2/POL-2 (from the BISTRO survey) to analyse the NGC 2071 molecular cloud at 154, 214, and 850 mu m. The polarization angle changes significantly with wavelength over part of NGC 2071, suggesting a change in magnetic field morphology on the line of sight as each wavelength best traces different dust populations. Other possible explanations are the existence of more than one polarization mechanism in the cloud or scattering from very large grains. The observed change of polarization fraction with wavelength, and the 214-to-154 mu m polarization ratio in particular, are difficult to reproduce with current dust models under the assumption of uniform alignment efficiency. We also show that the standard procedure of using monochromatic intensity as a proxy for column density may produce spurious results at HAWC+wavelengths. Using both long-wavelength (POL-2, 850 mu m) and short-wavelength (HAWC+, less than or similar to 200 mu m) polarimetry is key in obtaining these results. This study clearly shows the importance of multi-wavelength polarimetry at submillimetre bands to understand the dust properties of molecular clouds and the relationship between magnetic field and star formation. |
| WOS关键词 | SUBMILLIMETER POLARIZATION SPECTRUM ; OPHIUCHUS MOLECULAR CLOUD ; GRAIN ALIGNMENT ; DUST GRAINS ; RADIATIVE TORQUES ; THERMAL EMISSION ; MAGNETIC-FIELDS ; BIPOLAR OUTFLOW ; SCUBA-2 ; SOFIA |
| 资助项目 | National Key R&D Program of China[2017YFA0402700] ; Science and Technology Facilities Council of the United Kingdom ; Canada Foundation for Innovation ; National Aeronautics and Space Administration[NNA17BF53C] ; National Aeronautics and Space Administration. ; National Aeronautics and Space Administration ; Ministry of Science and Technology of Taiwan[MoST107-2119-M-001-031-MY3] ; Ministry of Science and Technology of Taiwan[106-2119-M-007-021-MY3] ; Ministry of Science and Technology of Taiwan[109-2112-M-007-010-MY3] ; Academia Sinica[AS-IA-106-M03] ; JSPS KAKENHI[18H05442] ; JSPS KAKENHI[15H02063] ; JSPS KAKENHI[22000005] ; JSPS KAKENHI[19K14775] ; JSPS KAKENHI[18K13586] ; JSPS KAKENHI[20K14527] ; NAOJ Fellowship ; National Research Foundation of Korea (NRF) - Korea government (MSIT)[NRF-2019R1I1A1A01042480] ; National Research Foundation of Korea (NRF) - Korea government (MSIT)[NRF-2021R1F1A1061794] ; National Research Foundation of Korea (NRF) - Korea government (MSIT)[2019R1A2C1087045] ; National Research Council of Canada ; NSERC Discovery Grant ; centre for Women In Science, Engineering and Technology (WISET) grant - Ministry of Science and ICT (MSIT)[WISET-2019-288] ; centre for Women In Science, Engineering and Technology (WISET) grant - Ministry of Science and ICT (MSIT)[WISET-2020-247] ; NRF - Ministry of Education, Science and Technology[NRF-2019R1A2C1010851] ; Ministry of Science and Technology (MoST)[MoST 109-2112-M-001-022] ; Ministry of Science and Technology (MoST)[MoST 110-2112-M-001-057] ; National Science Foundation[AST-1715876] ; Ramanujan Fellowship - Science and Engineering Research Board (SERB), Department of Science and Technology (DST), Govt. of India[RJF/2020/000071] ; NASA[06 0119] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000773022100011 |
| 资助机构 | National Key R&D Program of China ; Science and Technology Facilities Council of the United Kingdom ; Canada Foundation for Innovation ; National Aeronautics and Space Administration ; National Aeronautics and Space Administration. ; National Aeronautics and Space Administration ; Ministry of Science and Technology of Taiwan ; Academia Sinica ; JSPS KAKENHI ; NAOJ Fellowship ; National Research Foundation of Korea (NRF) - Korea government (MSIT) ; National Research Council of Canada ; NSERC Discovery Grant ; centre for Women In Science, Engineering and Technology (WISET) grant - Ministry of Science and ICT (MSIT) ; NRF - Ministry of Education, Science and Technology ; Ministry of Science and Technology (MoST) ; National Science Foundation ; Ramanujan Fellowship - Science and Engineering Research Board (SERB), Department of Science and Technology (DST), Govt. of India ; NASA |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4559]  |
| 专题 | 恒星形成与演化研究团组 |
| 通讯作者 | Fanciullo, Lapo |
| 作者单位 | 1.Kagoshima Univ, Grad Sch Sci & Engn, Dept Phys & Astron, 1-21-35 Korimoto, Kagoshima, Kagoshima 8900065, Japan 2.Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, Wales 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 4.Astrobiol Ctr, Mitaka, Tokyo 1818588, Japan 5.Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA 6.Worcester State Univ, Dept Earth Environm & Phys, Worcester, MA 01602 USA 7.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Peoples R China 8.Natl Tsing Hua Univ, Dept Phys, Hsinchu 30013, Taiwan 9.Natl Tsing Hua Univ, Inst Astron, Hsinchu 30013, Taiwan 10.Seoul Natl Univ, SNU Astron Res Ctr, 1 Gwanak Ro, Seoul 08826, South Korea |
| 推荐引用方式 GB/T 7714 | Fanciullo, Lapo,Kemper, Francisca,Pattle, Kate,et al. The JCMT BISTRO Survey: multiwavelength polarimetry of bright regions in NGC 2071 in the far-infrared/submillimetre range, with POL-2 and HAWC+[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2022,512(2):1985-2002. |
| APA | Fanciullo, Lapo.,Kemper, Francisca.,Pattle, Kate.,Koch, Patrick M..,Sadavoy, Sarah.,...&Shinnaga, Hiroko.(2022).The JCMT BISTRO Survey: multiwavelength polarimetry of bright regions in NGC 2071 in the far-infrared/submillimetre range, with POL-2 and HAWC+.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,512(2),1985-2002. |
| MLA | Fanciullo, Lapo,et al."The JCMT BISTRO Survey: multiwavelength polarimetry of bright regions in NGC 2071 in the far-infrared/submillimetre range, with POL-2 and HAWC+".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 512.2(2022):1985-2002. |
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