The Astrophysical Journal (Jan 2025)
The JCMT BISTRO-3 Survey: Variation of Magnetic Field Orientations on Parsec and Subparsec Scales in the Massive Star-forming Region G28.34+0.06
- Jihye Hwang,
- Kate Pattle,
- Chang Won Lee,
- Janik Karoly,
- Kee-Tae Kim,
- Jongsoo Kim,
- Junhao Liu,
- Keping Qiu,
- A-Ran Lyo,
- David Eden,
- Patrick M. Koch,
- Doris Arzoumanian,
- Ekta Sharma,
- Frédérick Poidevin,
- Doug Johnstone,
- Simon Coudé,
- Mehrnoosh Tahani,
- Derek Ward-Thompson,
- Archana Soam,
- Ji-hyun Kang,
- Thiem Hoang,
- Woojin Kwon,
- Nguyen Bich Ngoc,
- Eun Jung Chung,
- Tyler L. Bourke,
- Takashi Onaka,
- Florian Kirchschlager,
- Motohide Tamura,
- Jungmi Kwon,
- Xindi Tang,
- Eswaraiah Chakali,
- Tie Liu,
- Pierre Bastien,
- Ray S. Furuya,
- Shih-Ping Lai,
- Sheng-Jun Lin,
- Jia-Wei Wang,
- David Berry
Affiliations
- Jihye Hwang
- ORCiD
- Korea Astronomy and Space Science Institute (KASI) , 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea ; [email protected]; Institute for Advanced Study , Kyushu University, Japan; Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University , Nishi-ku, Fukuoka 819-0395, Japan
- Kate Pattle
- ORCiD
- Department of Physics and Astronomy, University College London , London, WC1E 6BT, UK
- Chang Won Lee
- ORCiD
- Korea Astronomy and Space Science Institute (KASI) , 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea ; [email protected]; University of Science and Technology , Korea (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
- Janik Karoly
- ORCiD
- Department of Physics and Astronomy, University College London , London, WC1E 6BT, UK
- Kee-Tae Kim
- ORCiD
- Korea Astronomy and Space Science Institute (KASI) , 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea ; [email protected]; University of Science and Technology , Korea (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
- Jongsoo Kim
- ORCiD
- Korea Astronomy and Space Science Institute (KASI) , 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea ; [email protected]
- Junhao Liu
- ORCiD
- Division of ALMA, National Astronomical Observatory of Japan , Mitaka, Tokyo 181-8588, Japan
- Keping Qiu
- ORCiD
- School of Astronomy and Space Science, Nanjing University , 163 Xianlin Avenue, Nanjing 210023, People’s Republic of China; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) , Ministry of Education, Nanjing 210023, People’s Republic of China
- A-Ran Lyo
- ORCiD
- Korea Astronomy and Space Science Institute (KASI) , 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea ; [email protected]
- David Eden
- ORCiD
- Department of Physics, University of Bath , Claverton Down, Bath, BA2 7AY, UK; Armagh Observatory and Planetarium , College Hill, Armagh, BT61 9DB, UK
- Patrick M. Koch
- ORCiD
- Academia Sinica Institute of Astronomy and Astrophysics , No.1, Sec. 4., Roosevelt Road, Taipei 10617, Taiwan
- Doris Arzoumanian
- ORCiD
- Institute for Advanced Study , Kyushu University, Japan; Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University , Nishi-ku, Fukuoka 819-0395, Japan; Division of Science, National Astronomical Observatory of Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Ekta Sharma
- ORCiD
- CAS Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences , People’s Republic of China
- Frédérick Poidevin
- ORCiD
- Instituto de Astrofisíca de Canarias , E-38205 La Laguna, Tenerife, Canary Islands, Spain; Departamento de Astrofísica, Universidad de La Laguna (ULL) , E-38206 La Laguna, Tenerife, Spain
- Doug Johnstone
- ORCiD
- NRC Herzberg Astronomy and Astrophysics , 5071 West Saanich Road, Victoria, BC V9E 2E7, Canada; Department of Physics and Astronomy, University of Victoria , Victoria, BC V8W 2Y2, Canada
- Simon Coudé
- ORCiD
- Department of Earth, Environment, and Physics, Worcester State University , Worcester, MA 01602, USA; Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA
- Mehrnoosh Tahani
- ORCiD
- Kavli Institute for Particle Astrophysics & Cosmology (KIPAC), Stanford University , Stanford, CA 94305, USA
- Derek Ward-Thompson
- ORCiD
- Jeremiah Horrocks Institute, University of Central Lancashire , Preston, PR1 2HE, UK
- Archana Soam
- ORCiD
- Indian Institute of Astrophysics , II Block, Koramangala, Bengaluru 560034, India
- Ji-hyun Kang
- ORCiD
- Korea Astronomy and Space Science Institute (KASI) , 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea ; [email protected]
- Thiem Hoang
- ORCiD
- Korea Astronomy and Space Science Institute (KASI) , 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea ; [email protected]; University of Science and Technology , Korea (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
- Woojin Kwon
- ORCiD
- Department of Earth Science Education, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; SNU Astronomy Research Center, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; The Center for Educational Research, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
- Nguyen Bich Ngoc
- ORCiD
- Vietnam National Space Center, Vietnam Academy of Science and Technology , 18 Hoang Quoc Viet, Hanoi, Vietnam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology , 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Eun Jung Chung
- ORCiD
- Korea Astronomy and Space Science Institute (KASI) , 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Republic of Korea ; [email protected]
- Tyler L. Bourke
- ORCiD
- SKA Observatory , Jodrell Bank, Lower Withington, Macclesfield, SK11 9FT, UK; Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester , Oxford Road, Manchester, M13 9PL, UK
- Takashi Onaka
- ORCiD
- Department of Astronomy, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Florian Kirchschlager
- ORCiD
- Sterrenkundig Observatorium, Ghent University , Krijgslaan 281-S9, 9000 Gent, BE, Belgium
- Motohide Tamura
- ORCiD
- Department of Astronomy, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Astrobiology Center , 2-21-1 Osawa, Mitaka-shi, Tokyo 181-8588, Japan; National Astronomical Observatory , 2-21-1 Osawa, Mitaka-shi, Tokyo 181-8588, Japan
- Jungmi Kwon
- ORCiD
- Department of Astronomy, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Xindi Tang
- ORCiD
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 830011 Urumqi, People’s Republic of China
- Eswaraiah Chakali
- ORCiD
- Department of Physical Sciences, Indian Institute of Science Education and Research (IISER) Mohali , Knowledge City, Sector 81, SAS Nagar 140306, Punjab, India; Department of Physics, Indian Institute of Science Education and Research, Tirupati , Yerpedu, Tirupati - 517619, Andhra Pradesh, India
- Tie Liu
- ORCiD
- Shanghai Astronomical Observatory, Chinese Academy of Sciences , 80 Nandan Road, Shanghai 200030, People’s Republic of China
- Pierre Bastien
- ORCiD
- Centre de recherche en astrophysique du Québec & département de physique, Université de Montréal , C.P. 6128 Succ. Centre-ville, Montréal, QC H3C 3J7, Canada
- Ray S. Furuya
- ORCiD
- Institute of Liberal Arts and Sciences Tokushima University , Minami Jousanajima-machi 1-1, Tokushima 770-8502, Japan; National Astronomical Observatory of Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Shih-Ping Lai
- ORCiD
- Academia Sinica Institute of Astronomy and Astrophysics , No.1, Sec. 4., Roosevelt Road, Taipei 10617, Taiwan; Institute of Astronomy and Department of Physics, National Tsing Hua University , Hsinchu 30013, Taiwan
- Sheng-Jun Lin
- ORCiD
- Academia Sinica Institute of Astronomy and Astrophysics , No.1, Sec. 4., Roosevelt Road, Taipei 10617, Taiwan
- Jia-Wei Wang
- ORCiD
- East Asian Observatory, 660 N. A’ohōkū Place, University Park , Hilo, HI 96720, USA
- David Berry
- ORCiD
- East Asian Observatory, 660 N. A’ohōkū Place, University Park , Hilo, HI 96720, USA
- DOI
- https://doi.org/10.3847/1538-4357/adce80
- Journal volume & issue
-
Vol. 985,
no. 2
p. 222
Abstract
Magnetic fields play a significant role in star-forming processes on core to clump scales. We investigate magnetic field orientations and strengths in the massive star-forming clump P2 within the filamentary infrared dark cloud G28.34+0.06 using dust polarization observations made using SCUBA-2/POL-2 on the James Clerk Maxwell Telescope (JCMT) as part of the B-field In STar-forming Region Observations (or BISTRO) survey. We compare the magnetic field orientations at the clump scale of ∼2 pc from these JCMT observations with those at the core scale of ∼0.2 pc from archival Atacama Large Millimeter/submillimeter Array data, finding that the magnetic field orientations on these two different scales are perpendicular to one another. We estimate the distribution of magnetic field strengths, which range from 50 to 430 μ G over the clump. The region forming the core shows the highest magnetic field strength. We also obtain the distribution of mass-to-flux ratios across the clump. In the region surrounding the core, the mass-to-flux ratio is larger than 1, which indicates that the magnetic field strength is insufficient to support the region against gravitational collapse. Therefore, the change in the magnetic field orientation from clump to core scales may be the result of gravitational collapse, with the field being pulled inward along with the flow of material under gravity.
Keywords
