The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry

Chakali Eswaraiah; Di Li; Ray S. Furuya; Tetsuo Hasegawa; Derek Ward-Thompson; Keping Qiu; Nagayoshi Ohashi; Kate Pattle; Sarah Sadavoy; Charles L.H. Hull; David Berry; Yasuo Doi; Tao Chung Ching; Shih Ping Lai; Jia Wei Wang; Patrick M. Koch; Jungmi Kwon; Woojin Kwon; Pierre Bastien; Doris Arzoumanian; Simon Coudé; Archana Soam; Lapo Fanciullo; Hsi Wei Yen; Junhao Liu; Thiem Hoang; Wen Ping Chen; Yoshito Shimajiri; Tie Liu; Zhiwei Chen; Hua Bai Li; A. Ran Lyo; Jihye Hwang; Doug Johnstone; Ramprasad Rao; Nguyen Bich Ngoc; Pham Ngoc Diep; Steve Mairs; Harriet Parsons; Motohide Tamura; Mehrnoosh Tahani; Huei Ru Vivien Chen; Fumitaka Nakamura; Hiroko Shinnaga; Ya Wen Tang; Jungyeon Cho; Chang Won Lee; Shu Ichiro Inutsuka; Tsuyoshi Inoue; Kazunari Iwasaki; Lei Qian; Jinjin Xie; Dalei Li; Hong Li Liu; Chuan Peng Zhang; Mike Chen; Guoyin Zhang; Lei Zhu; Jianjun Zhou; Philippe André; Sheng Yuan Liu; Jinghua Yuan; Xing Lu; Nicolas Peretto; Tyler L. Bourke; Do Young Byun; Sophia Dai; Yan Duan; Hao Yuan Duan; David Eden; Brenda Matthews; Jason Fiege; Laura M. Fissel; Kee Tae Kim; Chin Fei Lee; Jongsoo Kim; Tae Soo Pyo; Yunhee Choi; Minho Choi; Antonio Chrysostomou; Eun Jung Chung; Le Ngoc Tram; Erica Franzmann; Per Friberg; Rachel Friesen; Gary Fuller; Tim Gledhill; Sarah Graves; Jane Greaves; Matt Griffin; Qilao Gu; Ilseung Han; Jennifer Hatchell; Saeko Hayashi; Martin Houde; Koji Kawabata; Il Gyo Jeong; Ji Hyun Kang; Sung Ju Kang; Miju Kang; Akimasa Kataoka; Francisca Kemper; Mark Rawlings; Jonathan Rawlings; Brendan Retter; John Richer; Andrew Rigby; Hiro Saito; Giorgio Savini; Anna Scaife; Masumichi Seta; Gwanjeong Kim; Kyoung Hee Kim; Mi Ryang Kim; Florian Kirchschlager; Jason Kirk; Masato I.N. Kobayashi; Vera Konyves; Takayoshi Kusune; Kevin Lacaille; Chi Yan Law; Sang Sung Lee; Yong Hee Lee; Masafumi Matsumura; Gerald Moriarty-Schieven; Tetsuya Nagata; Hiroyuki Nakanishi; Takashi Onaka; Geumsook Park; Xindi Tang; Kohji Tomisaka; Yusuke Tsukamoto; Serena Viti; Hongchi Wang; Anthony Whitworth; Hyunju Yoo; Hyeong Sik Yun; Tetsuya Zenko; Yapeng Zhang; Ilse De Looze; C. Darren Dowell; Stewart Eyres; Sam Falle; Jean Francois Robitaille; Sven Van Loo

doi:10.3847/2041-8213/abeb1c

The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry

Chakali Eswaraiah, Di Li, Ray S. Furuya, Tetsuo Hasegawa, Derek Ward-Thompson, Keping Qiu, Nagayoshi Ohashi, Kate Pattle, Sarah Sadavoy, Charles L.H. Hull, David Berry, Yasuo Doi, Tao Chung Ching, Shih Ping Lai, Jia Wei Wang, Patrick M. Koch, Jungmi Kwon, Woojin Kwon, Pierre Bastien, Doris ArzoumanianSimon Coudé, Archana Soam, Lapo Fanciullo, Hsi Wei Yen, Junhao Liu, Thiem Hoang, Wen Ping Chen, Yoshito Shimajiri, Tie Liu, Zhiwei Chen, Hua Bai Li, A. Ran Lyo, Jihye Hwang, Doug Johnstone, Ramprasad Rao, Nguyen Bich Ngoc, Pham Ngoc Diep, Steve Mairs, Harriet Parsons, Motohide Tamura, Mehrnoosh Tahani, Huei Ru Vivien Chen, Fumitaka Nakamura, Hiroko Shinnaga, Ya Wen Tang, Jungyeon Cho, Chang Won Lee, Shu Ichiro Inutsuka, Tsuyoshi Inoue, Kazunari Iwasaki, Lei Qian, Jinjin Xie, Dalei Li, Hong Li Liu, Chuan Peng Zhang, Mike Chen, Guoyin Zhang, Lei Zhu, Jianjun Zhou, Philippe André, Sheng Yuan Liu, Jinghua Yuan, Xing Lu, Nicolas Peretto, Tyler L. Bourke, Do Young Byun, Sophia Dai, Yan Duan, Hao Yuan Duan, David Eden, Brenda Matthews, Jason Fiege, Laura M. Fissel, Kee Tae Kim, Chin Fei Lee, Jongsoo Kim, Tae Soo Pyo, Yunhee Choi, Minho Choi, Antonio Chrysostomou, Eun Jung Chung, Le Ngoc Tram, Erica Franzmann, Per Friberg, Rachel Friesen, Gary Fuller, Tim Gledhill, Sarah Graves, Jane Greaves, Matt Griffin, Qilao Gu, Ilseung Han, Jennifer Hatchell, Saeko Hayashi, Martin Houde, Koji Kawabata, Il Gyo Jeong, Ji Hyun Kang, Sung Ju Kang, Miju Kang, Akimasa Kataoka, Francisca Kemper, Mark Rawlings, Jonathan Rawlings, Brendan Retter, John Richer, Andrew Rigby, Hiro Saito, Giorgio Savini, Anna Scaife, Masumichi Seta, Gwanjeong Kim, Kyoung Hee Kim, Mi Ryang Kim, Florian Kirchschlager, Jason Kirk, Masato I.N. Kobayashi, Vera Konyves, Takayoshi Kusune, Kevin Lacaille, Chi Yan Law, Sang Sung Lee, Yong Hee Lee, Masafumi Matsumura, Gerald Moriarty-Schieven, Tetsuya Nagata, Hiroyuki Nakanishi, Takashi Onaka, Geumsook Park, Xindi Tang, Kohji Tomisaka, Yusuke Tsukamoto, Serena Viti, Hongchi Wang, Anthony Whitworth, Hyunju Yoo, Hyeong Sik Yun, Tetsuya Zenko, Yapeng Zhang, Ilse De Looze, C. Darren Dowell, Stewart Eyres, Sam Falle, Jean Francois Robitaille, Sven Van Loo

Department of Physics

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28 Citations (SciVal)

Abstract

We have obtained sensitive dust continuum polarization observations at 850 μm 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 (∼2000 au or ∼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 μG, 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.

Original language	English
Article number	L27
Journal	Astrophysical Journal Letters
Volume	912
Issue number	2
DOIs	https://doi.org/10.3847/2041-8213/abeb1c
Publication status	Published - 10 May 2021

Acknowledgements

We thank the referee for constructive suggestions that have improved the content and flow of this paper.

The James Clerk Maxwell Telescope is operated by the East Asian Observatory on behalf of the National Astronomical Observatory of Japan, the Academia Sinica Institute of Astronomy and Astrophysics, the Korea Astronomy and Space Science Institute, and the Center for Astronomical Mega-Science. Additional funding support is provided by the Science and Technology Facilities Council of the United Kingdom and participating universities in the United Kingdom, Canada, and Ireland.

Funding

This work is supported by National Natural Science Foundation of China (NSFC) grant Nos. 11988101, 11725313, and U1931117 and the International Partnership Program of Chinese Academy of Sciences grant No. 114A11KYSB20160008. This work is also supported by Special Funding for Advanced Users, budgeted and administrated by the Center for Astronomical Mega-Science, Chinese Academy of Sciences (CAMS). C.E. thanks Tokuda Kazuki for kindly providing us with the ALMA data on the protostellar outflows. C.E. thanks Sihan Jiao and Yuehui Ma for help with the analyses. K.Q. acknowledges support from the National Natural Science Foundation of China (NSFC) through grant U1731237. C.W.L. is supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2019R1A2C1010851). N.O. is supported by Ministry of Science and Technology (MOST) grant MOST 109-2112-M-001-051 in Taiwan. C.L.H.H. acknowledges the support of the NAOJ Fellowship and JSPS KAKENHI grants 18K13586 and 20K14527. W.K. was supported by the New Faculty Startup Fund from Seoul National University. D.J. is supported by the National Research Council of Canada and a Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery Grant. A.S. acknowledges support from the NSF through grant AST-1715876. K.H.K is supported by the center for Women In Science, Engineering and Technology (WISET) grant funded by the Ministry of Science and ICT (MSIT) under the program for returners into R&D (WISET-2019-288; WISET-2020-247). P.N.D and N.B.N are funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number 103.99-2019.368. Y.W.T acknowledges the grant MOST 108-2112-M-001-004-MY2.

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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Eswaraiah, C., Li, D., Furuya, R. S., Hasegawa, T., Ward-Thompson, D., Qiu, K., Ohashi, N., Pattle, K., Sadavoy, S., Hull, C. L. H., Berry, D., Doi, Y., Ching, T. C., Lai, S. P., Wang, J. W., Koch, P. M., Kwon, J., Kwon, W., Bastien, P., ... Van Loo, S. (2021). The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry. Astrophysical Journal Letters, 912(2), Article L27. https://doi.org/10.3847/2041-8213/abeb1c

Eswaraiah, C, Li, D, Furuya, RS, Hasegawa, T, Ward-Thompson, D, Qiu, K, Ohashi, N, Pattle, K, Sadavoy, S, Hull, CLH, Berry, D, Doi, Y, Ching, TC, Lai, SP, Wang, JW, Koch, PM, Kwon, J, Kwon, W, Bastien, P, Arzoumanian, D, Coudé, S, Soam, A, Fanciullo, L, Yen, HW, Liu, J, Hoang, T, Ping Chen, W, Shimajiri, Y, Liu, T, Chen, Z, Li, HB, Lyo, AR, Hwang, J, Johnstone, D, Rao, R, Bich Ngoc, N, Ngoc Diep, P, Mairs, S, Parsons, H, Tamura, M, Tahani, M, Vivien Chen, HR, Nakamura, F, Shinnaga, H, Tang, YW, Cho, J, Won Lee, C, Inutsuka, SI, Inoue, T, Iwasaki, K, Qian, L, Xie, J, Li, D, Liu, HL, Zhang, CP, Chen, M, Zhang, G, Zhu, L, Zhou, J, André, P, Liu, SY, Yuan, J, Lu, X, Peretto, N, Bourke, TL, Byun, DY, Dai, S, Duan, Y, Duan, HY, Eden, D, Matthews, B, Fiege, J, Fissel, LM, Kim, KT, Lee, CF, Kim, J, Pyo, TS, Choi, Y, Choi, M, Chrysostomou, A, Jung Chung, E, Ngoc Tram, L, Franzmann, E, Friberg, P, Friesen, R, Fuller, G, Gledhill, T, Graves, S, Greaves, J, Griffin, M, Gu, Q, Han, I, Hatchell, J, Hayashi, S, Houde, M, Kawabata, K, Jeong, IG, Kang, JH, Kang, SJ, Kang, M, Kataoka, A, Kemper, F, Rawlings, M, Rawlings, J, Retter, B, Richer, J, Rigby, A, Saito, H, Savini, G, Scaife, A, Seta, M, Kim, G, Hee Kim, K, Kim, MR, Kirchschlager, F, Kirk, J, Kobayashi, MIN, Konyves, V, Kusune, T, Lacaille, K, Law, CY, Lee, SS, Lee, YH, Matsumura, M, Moriarty-Schieven, G, Nagata, T, Nakanishi, H, Onaka, T, Park, G, Tang, X, Tomisaka, K, Tsukamoto, Y, Viti, S, Wang, H, Whitworth, A, Yoo, H, Yun, HS, Zenko, T, Zhang, Y, De Looze, I, Dowell, CD, Eyres, S, Falle, S, Robitaille, JF & Van Loo, S 2021, 'The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry', Astrophysical Journal Letters, vol. 912, no. 2, L27. https://doi.org/10.3847/2041-8213/abeb1c

@article{cfc94c1ca55849d29b27c85624a87bf6,

title = "The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry",

abstract = "We have obtained sensitive dust continuum polarization observations at 850 μm 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 (∼2000 au or ∼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 μG, 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.",

author = "Chakali Eswaraiah and Di Li and Furuya, {Ray S.} and Tetsuo Hasegawa and Derek Ward-Thompson and Keping Qiu and Nagayoshi Ohashi and Kate Pattle and Sarah Sadavoy and Hull, {Charles L.H.} and David Berry and Yasuo Doi and Ching, {Tao Chung} and Lai, {Shih Ping} and Wang, {Jia Wei} and Koch, {Patrick M.} and Jungmi Kwon and Woojin Kwon and Pierre Bastien and Doris Arzoumanian and Simon Coud{\'e} and Archana Soam and Lapo Fanciullo and Yen, {Hsi Wei} and Junhao Liu and Thiem Hoang and {Ping Chen}, Wen and Yoshito Shimajiri and Tie Liu and Zhiwei Chen and Li, {Hua Bai} and Lyo, {A. Ran} and Jihye Hwang and Doug Johnstone and Ramprasad Rao and {Bich Ngoc}, Nguyen and {Ngoc Diep}, Pham and Steve Mairs and Harriet Parsons and Motohide Tamura and Mehrnoosh Tahani and {Vivien Chen}, {Huei Ru} and Fumitaka Nakamura and Hiroko Shinnaga and Tang, {Ya Wen} and Jungyeon Cho and {Won Lee}, Chang and Inutsuka, {Shu Ichiro} and Tsuyoshi Inoue and Kazunari Iwasaki and Lei Qian and Jinjin Xie and Dalei Li and Liu, {Hong Li} and Zhang, {Chuan Peng} and Mike Chen and Guoyin Zhang and Lei Zhu and Jianjun Zhou and Philippe Andr{\'e} and Liu, {Sheng Yuan} and Jinghua Yuan and Xing Lu and Nicolas Peretto and Bourke, {Tyler L.} and Byun, {Do Young} and Sophia Dai and Yan Duan and Duan, {Hao Yuan} and David Eden and Brenda Matthews and Jason Fiege and Fissel, {Laura M.} and Kim, {Kee Tae} and Lee, {Chin Fei} and Jongsoo Kim and Pyo, {Tae Soo} and Yunhee Choi and Minho Choi and Antonio Chrysostomou and {Jung Chung}, Eun and {Ngoc Tram}, Le and Erica Franzmann and Per Friberg and Rachel Friesen and Gary Fuller and Tim Gledhill and Sarah Graves and Jane Greaves and Matt Griffin and Qilao Gu and Ilseung Han and Jennifer Hatchell and Saeko Hayashi and Martin Houde and Koji Kawabata and Jeong, {Il Gyo} and Kang, {Ji Hyun} and Kang, {Sung Ju} and Miju Kang and Akimasa Kataoka and Francisca Kemper and Mark Rawlings and Jonathan Rawlings and Brendan Retter and John Richer and Andrew Rigby and Hiro Saito and Giorgio Savini and Anna Scaife and Masumichi Seta and Gwanjeong Kim and {Hee Kim}, Kyoung and Kim, {Mi Ryang} and Florian Kirchschlager and Jason Kirk and Kobayashi, {Masato I.N.} and Vera Konyves and Takayoshi Kusune and Kevin Lacaille and Law, {Chi Yan} and Lee, {Sang Sung} and Lee, {Yong Hee} and Masafumi Matsumura and Gerald Moriarty-Schieven and Tetsuya Nagata and Hiroyuki Nakanishi and Takashi Onaka and Geumsook Park and Xindi Tang and Kohji Tomisaka and Yusuke Tsukamoto and Serena Viti and Hongchi Wang and Anthony Whitworth and Hyunju Yoo and Yun, {Hyeong Sik} and Tetsuya Zenko and Yapeng Zhang and {De Looze}, Ilse and Dowell, {C. Darren} and Stewart Eyres and Sam Falle and Robitaille, {Jean Francois} and {Van Loo}, Sven",

year = "2021",

month = may,

day = "10",

doi = "10.3847/2041-8213/abeb1c",

language = "English",

volume = "912",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "American Astronomical Society",

number = "2",

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TY - JOUR

T1 - The JCMT BISTRO Survey

T2 - Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry

AU - Eswaraiah, Chakali

AU - Li, Di

AU - Furuya, Ray S.

AU - Hasegawa, Tetsuo

AU - Ward-Thompson, Derek

AU - Qiu, Keping

AU - Ohashi, Nagayoshi

AU - Pattle, Kate

AU - Sadavoy, Sarah

AU - Hull, Charles L.H.

AU - Berry, David

AU - Doi, Yasuo

AU - Ching, Tao Chung

AU - Lai, Shih Ping

AU - Wang, Jia Wei

AU - Koch, Patrick M.

AU - Kwon, Jungmi

AU - Kwon, Woojin

AU - Bastien, Pierre

AU - Arzoumanian, Doris

AU - Coudé, Simon

AU - Soam, Archana

AU - Fanciullo, Lapo

AU - Yen, Hsi Wei

AU - Liu, Junhao

AU - Hoang, Thiem

AU - Ping Chen, Wen

AU - Shimajiri, Yoshito

AU - Liu, Tie

AU - Chen, Zhiwei

AU - Li, Hua Bai

AU - Lyo, A. Ran

AU - Hwang, Jihye

AU - Johnstone, Doug

AU - Rao, Ramprasad

AU - Bich Ngoc, Nguyen

AU - Ngoc Diep, Pham

AU - Mairs, Steve

AU - Parsons, Harriet

AU - Tamura, Motohide

AU - Tahani, Mehrnoosh

AU - Vivien Chen, Huei Ru

AU - Nakamura, Fumitaka

AU - Shinnaga, Hiroko

AU - Tang, Ya Wen

AU - Cho, Jungyeon

AU - Won Lee, Chang

AU - Inutsuka, Shu Ichiro

AU - Inoue, Tsuyoshi

AU - Iwasaki, Kazunari

AU - Qian, Lei

AU - Xie, Jinjin

AU - Li, Dalei

AU - Liu, Hong Li

AU - Zhang, Chuan Peng

AU - Chen, Mike

AU - Zhang, Guoyin

AU - Zhu, Lei

AU - Zhou, Jianjun

AU - André, Philippe

AU - Liu, Sheng Yuan

AU - Yuan, Jinghua

AU - Lu, Xing

AU - Peretto, Nicolas

AU - Bourke, Tyler L.

AU - Byun, Do Young

AU - Dai, Sophia

AU - Duan, Yan

AU - Duan, Hao Yuan

AU - Eden, David

AU - Matthews, Brenda

AU - Fiege, Jason

AU - Fissel, Laura M.

AU - Kim, Kee Tae

AU - Lee, Chin Fei

AU - Kim, Jongsoo

AU - Pyo, Tae Soo

AU - Choi, Yunhee

AU - Choi, Minho

AU - Chrysostomou, Antonio

AU - Jung Chung, Eun

AU - Ngoc Tram, Le

AU - Franzmann, Erica

AU - Friberg, Per

AU - Friesen, Rachel

AU - Fuller, Gary

AU - Gledhill, Tim

AU - Graves, Sarah

AU - Greaves, Jane

AU - Griffin, Matt

AU - Gu, Qilao

AU - Han, Ilseung

AU - Hatchell, Jennifer

AU - Hayashi, Saeko

AU - Houde, Martin

AU - Kawabata, Koji

AU - Jeong, Il Gyo

AU - Kang, Ji Hyun

AU - Kang, Sung Ju

AU - Kang, Miju

AU - Kataoka, Akimasa

AU - Kemper, Francisca

AU - Rawlings, Mark

AU - Rawlings, Jonathan

AU - Retter, Brendan

AU - Richer, John

AU - Rigby, Andrew

AU - Saito, Hiro

AU - Savini, Giorgio

AU - Scaife, Anna

AU - Seta, Masumichi

AU - Kim, Gwanjeong

AU - Hee Kim, Kyoung

AU - Kim, Mi Ryang

AU - Kirchschlager, Florian

AU - Kirk, Jason

AU - Kobayashi, Masato I.N.

AU - Konyves, Vera

AU - Kusune, Takayoshi

AU - Lacaille, Kevin

AU - Law, Chi Yan

AU - Lee, Sang Sung

AU - Lee, Yong Hee

AU - Matsumura, Masafumi

AU - Moriarty-Schieven, Gerald

AU - Nagata, Tetsuya

AU - Nakanishi, Hiroyuki

AU - Onaka, Takashi

AU - Park, Geumsook

AU - Tang, Xindi

AU - Tomisaka, Kohji

AU - Tsukamoto, Yusuke

AU - Viti, Serena

AU - Wang, Hongchi

AU - Whitworth, Anthony

AU - Yoo, Hyunju

AU - Yun, Hyeong Sik

AU - Zenko, Tetsuya

AU - Zhang, Yapeng

AU - De Looze, Ilse

AU - Dowell, C. Darren

AU - Eyres, Stewart

AU - Falle, Sam

AU - Robitaille, Jean Francois

AU - Van Loo, Sven

PY - 2021/5/10

Y1 - 2021/5/10

N2 - We have obtained sensitive dust continuum polarization observations at 850 μm 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 (∼2000 au or ∼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 μG, 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.

AB - We have obtained sensitive dust continuum polarization observations at 850 μm 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 (∼2000 au or ∼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 μG, 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.

UR - http://www.scopus.com/inward/record.url?scp=85106322742&partnerID=8YFLogxK

U2 - 10.3847/2041-8213/abeb1c

DO - 10.3847/2041-8213/abeb1c

M3 - Article

SN - 2041-8205

VL - 912

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 2

M1 - L27

ER -

The JCMT BISTRO Survey: Revealing the Diverse Magnetic Field Morphologies in Taurus Dense Cores with Sensitive Submillimeter Polarimetry

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