The JCMT BISTRO Survey: The Magnetic Field of the Barnard 1 Star-forming Region
Simon Coudé
,
Pierre Bastien
,
Martin Houde
,
Sarah Sadavoy
,
Rachel Friesen
,
James Di Francesco
,
Doug Johnstone
,
Steve Mairs
,
Tetsuo Hasegawa
,
Woojin Kwon
,
Shih-Ping Lai
,
Keping Qiu
,
Derek Ward-Thompson
,
David Berry
,
Michael Chun-Yuan Chen
,
Jason Fiege
,
Erica Franzmann
,
Jennifer Hatchell
,
Kevin Lacaille
,
Brenda C. Matthews
,
Gerald H. Moriarty-Schieven
,
Andy Pon
,
Philippe André
,
Doris Arzoumanian
,
Yusuke Aso
,
Do-Young Byun
,
Chakali Eswaraiah
,
Huei-Ru Chen
,
Wen Ping Chen
,
Tao-Chung Ching
,
Jungyeon Cho
,
Minho Choi
,
Antonio Chrysostomou
,
Eun Jung Chung
,
Yasuo Doi
,
Emily Drabek-Maunder
,
C. Darren Dowell
,
Stewart P. S. Eyres
,
Sam Falle
,
Per Friberg
,
Gary Fuller
,
Ray S. Furuya
,
Tim Gledhill
,
Sarah F. Graves
,
Jane S. Greaves
,
Matt J. Griffin
,
Qilao Gu
,
Saeko S. Hayashi
,
Thiem Hoang
,
Wayne Holland
,
Tsuyoshi Inoue
,
Shu-Ichiro Inutsuka
,
Kazunari Iwasaki
,
Il-Gyo Jeong
,
Yoshihiro Kanamori
,
Akimasa Kataoka
,
Ji-Hyun Kang
,
Miju Kang
,
Sung-Ju Kang
,
Koji S. Kawabata
,
Francisca Kemper
,
Gwanjeong Kim
,
Jongsoo Kim
,
Kee-Tae Kim
,
Kyoung Hee Kim
,
Mi-Ryang Kim
,
Shinyoung Kim
,
Jason M. Kirk
,
Masato I. N. Kobayashi
,
Patrick M. Koch
,
Jungmi Kwon
,
Jeong-Eun Lee
,
Chang Won Lee
,
Sang-Sung Lee
,
Dalei Li
,
Di Li
,
Hua-Bai Li
,
Hong-Li Liu
,
Junhao Liu
,
Sheng-Yuan Liu
,
Tie Liu
,
Sven van Loo
,
A. -Ran Lyo
,
Masafumi Matsumura
,
Tetsuya Nagata
,
Fumitaka Nakamura
,
Hiroyuki Nakanishi
,
Nagayoshi Ohashi
,
Takashi Onaka
,
Harriet Parsons
,
Kate Pattle
,
Nicolas Peretto
,
Tae-Soo Pyo
,
Lei Qian
,
Ramprasad Rao
,
Mark G. Rawlings
,
Brendan Retter
,
John Richer
,
Andrew Rigby
,
Jean-François Robitaille
(1)
,
Hiro Saito
,
Giorgio Savini
,
Anna M. M. Scaife
,
Masumichi Seta
,
Hiroko Shinnaga
,
Archana Soam
,
Motohide Tamura
,
Ya-Wen Tang
,
Kohji Tomisaka
,
Yusuke Tsukamoto
,
Hongchi Wang
,
Jia-Wei Wang
,
Anthony P. Whitworth
,
Hsi-Wei Yen
,
Hyunju Yoo
,
Jinghua Yuan
,
Tetsuya Zenko
,
Chuan-Peng Zhang
,
Guoyin Zhang
,
Jianjun Zhou
,
Lei Zhu
Simon Coudé
- Function : Author
Pierre Bastien
- Function : Author
Martin Houde
- Function : Author
Sarah Sadavoy
- Function : Author
Rachel Friesen
- Function : Author
James Di Francesco
- Function : Author
Doug Johnstone
- Function : Author
Steve Mairs
- Function : Author
Tetsuo Hasegawa
- Function : Author
Woojin Kwon
- Function : Author
Shih-Ping Lai
- Function : Author
Keping Qiu
- Function : Author
Derek Ward-Thompson
- Function : Author
David Berry
- Function : Author
Michael Chun-Yuan Chen
- Function : Author
Jason Fiege
- Function : Author
Erica Franzmann
- Function : Author
Jennifer Hatchell
- Function : Author
Kevin Lacaille
- Function : Author
Brenda C. Matthews
- Function : Author
Gerald H. Moriarty-Schieven
- Function : Author
Andy Pon
- Function : Author
Philippe André
- Function : Author
Doris Arzoumanian
- Function : Author
Yusuke Aso
- Function : Author
Do-Young Byun
- Function : Author
Chakali Eswaraiah
- Function : Author
Huei-Ru Chen
- Function : Author
Wen Ping Chen
- Function : Author
Tao-Chung Ching
- Function : Author
Jungyeon Cho
- Function : Author
Minho Choi
- Function : Author
Antonio Chrysostomou
- Function : Author
Eun Jung Chung
- Function : Author
Yasuo Doi
- Function : Author
Emily Drabek-Maunder
- Function : Author
C. Darren Dowell
- Function : Author
Stewart P. S. Eyres
- Function : Author
Sam Falle
- Function : Author
Per Friberg
- Function : Author
Gary Fuller
- Function : Author
Ray S. Furuya
- Function : Author
Tim Gledhill
- Function : Author
Sarah F. Graves
- Function : Author
Jane S. Greaves
- Function : Author
Matt J. Griffin
- Function : Author
Qilao Gu
- Function : Author
Saeko S. Hayashi
- Function : Author
Thiem Hoang
- Function : Author
Wayne Holland
- Function : Author
Tsuyoshi Inoue
- Function : Author
Shu-Ichiro Inutsuka
- Function : Author
Kazunari Iwasaki
- Function : Author
Il-Gyo Jeong
- Function : Author
Yoshihiro Kanamori
- Function : Author
Akimasa Kataoka
- Function : Author
Ji-Hyun Kang
- Function : Author
Miju Kang
- Function : Author
Sung-Ju Kang
- Function : Author
Koji S. Kawabata
- Function : Author
Francisca Kemper
- Function : Author
Gwanjeong Kim
- Function : Author
Jongsoo Kim
- Function : Author
Kee-Tae Kim
- Function : Author
Kyoung Hee Kim
- Function : Author
Mi-Ryang Kim
- Function : Author
Shinyoung Kim
- Function : Author
Jason M. Kirk
- Function : Author
Masato I. N. Kobayashi
- Function : Author
Patrick M. Koch
- Function : Author
Jungmi Kwon
- Function : Author
Jeong-Eun Lee
- Function : Author
Chang Won Lee
- Function : Author
Sang-Sung Lee
- Function : Author
Dalei Li
- Function : Author
Di Li
- Function : Author
Hua-Bai Li
- Function : Author
Hong-Li Liu
- Function : Author
Junhao Liu
- Function : Author
Sheng-Yuan Liu
- Function : Author
Tie Liu
- Function : Author
Sven van Loo
- Function : Author
A. -Ran Lyo
- Function : Author
Masafumi Matsumura
- Function : Author
Tetsuya Nagata
- Function : Author
Fumitaka Nakamura
- Function : Author
Hiroyuki Nakanishi
- Function : Author
Nagayoshi Ohashi
- Function : Author
Takashi Onaka
- Function : Author
Harriet Parsons
- Function : Author
Kate Pattle
- Function : Author
Nicolas Peretto
- Function : Author
Tae-Soo Pyo
- Function : Author
Lei Qian
- Function : Author
Ramprasad Rao
- Function : Author
Mark G. Rawlings
- Function : Author
Brendan Retter
- Function : Author
John Richer
- Function : Author
Andrew Rigby
- Function : Author
Hiro Saito
- Function : Author
Giorgio Savini
- Function : Author
Anna M. M. Scaife
- Function : Author
Masumichi Seta
- Function : Author
Hiroko Shinnaga
- Function : Author
Archana Soam
- Function : Author
Motohide Tamura
- Function : Author
Ya-Wen Tang
- Function : Author
Kohji Tomisaka
- Function : Author
Yusuke Tsukamoto
- Function : Author
Hongchi Wang
- Function : Author
Jia-Wei Wang
- Function : Author
Anthony P. Whitworth
- Function : Author
Hsi-Wei Yen
- Function : Author
Hyunju Yoo
- Function : Author
Jinghua Yuan
- Function : Author
Tetsuya Zenko
- Function : Author
Chuan-Peng Zhang
- Function : Author
Guoyin Zhang
- Function : Author
Jianjun Zhou
- Function : Author
Lei Zhu
- Function : Author
Abstract
We present the POL-2 850 μm linear polarization map of the Barnard 1 clump in the Perseus molecular cloud complex from the B-fields In STar-forming Region Observations survey at the James Clerk Maxwell Telescope. We find a trend of decreasing polarization fraction as a function of total intensity, which we link to depolarization effects toward higher-density regions of the cloud. We then use the polarization data at 850 μm to infer the plane-of-sky orientation of the large-scale magnetic field in Barnard 1. This magnetic field runs north-south across most of the cloud, with the exception of B1-c, where it turns more east-west. From the dispersion of polarization angles, we calculate a turbulence correlation length of 5.0 ± 2.″5 (1500 au) and a turbulent-to-total magnetic energy ratio of 0.5 ± 0.3 inside the cloud. We combine this turbulent-to-total magnetic energy ratio with observations of NH3 molecular lines from the Green Bank Ammonia Survey to estimate the strength of the plane-of-sky component of the magnetic field through the Davis-Chandrasekhar-Fermi method. With a plane-of-sky amplitude of 120 ± 60 μG and a criticality criterion λ c = 3.0 ± 1.5, we find that Barnard 1 is a supercritical molecular cloud with a magnetic field nearly dominated by its turbulent component.