Results 71 to 80 of about 372 (130)

Magnetic Field of a Ring-like Molecular Cloud

The Astronomical Journal
We present a detailed study of the magnetic field structure in the G111 molecular cloud, a ring-like filamentary cloud within the NGC 7538 region. Our analysis combines multiwavelength polarization data and molecular-line observations to investigate the ...
Dana Alina, Adel Umirbayeva, Yasuo Doi, Soichiro Jo, Yue Hu, Alex Lazarian, Janik Karoly, Tie Liu, Koji S. Kawabata, Alua Mukhash, Danial Zhumagayir, Tomori Hori, Tetsuharu Maruta, Ryo Imazawa, Tatsuya Nakaoka, Mahito Sasada   +15 more
doaj   +1 more source

A Tale of Three: Magnetic Fields along the Orion Integral-shaped Filament as Revealed by the JCMT BISTRO Survey

The Astrophysical Journal Letters
As part of the B -fields In Star-forming Region Observations survey, we present James Clerk Maxwell Telescope (JCMT) 850 μ m polarimetric observations toward the Orion integral-shaped filament (ISF) that covers three portions known as OMC-1, OMC-2, and ...
Jintai Wu, Keping Qiu, Frédérick Poidevin, Pierre Bastien, Junhao Liu, Tao-Chung Ching, Tyler L. Bourke, Derek Ward-Thompson, Kate Pattle, Doug Johnstone, Patrick M. Koch, Doris Arzoumanian, Chang Won Lee, Lapo Fanciullo, Takashi Onaka, Jihye Hwang, Valentin J. M. Le Gouellec, Archana Soam, Motohide Tamura, Mehrnoosh Tahani, Chakali Eswaraiah, Hua-Bai Li, David Berry, Ray S. Furuya, Simon Coudé, Woojin Kwon, Sheng-Jun Lin, Jia-Wei Wang, Tetsuo Hasegawa, Shih-Ping Lai, Do-Young Byun, Zhiwei Chen, Huei-Ru Vivien Chen, Wen Ping Chen, Mike Chen, Jungyeon Cho, Youngwoo Choi, Yunhee Choi, Minho Choi, Antonio Chrysostomou, Eun Jung Chung, Sophia Dai, James Di Francesco, Pham Ngoc Diep, Yasuo Doi, Hao-Yuan Duan, Yan Duan, David Eden, Jason Fiege, Laura M. Fissel, Erica Franzmann, Per Friberg, Rachel Friesen, Gary Fuller, Tim Gledhill, Sarah Graves, Jane Greaves, Matt Griffin, Qilao Gu, Ilseung Han, Saeko Hayashi, Thiem Hoang, Martin Houde, Tsuyoshi Inoue, Shu-ichiro Inutsuka, Kazunari Iwasaki, Il-Gyo Jeong, Vera Könyves, Ji-hyun Kang, Miju Kang, Janik Karoly, Akimasa Kataoka, Koji Kawabata, Shinyoung Kim, Mi-Ryang Kim, Kyoung Hee Kim, Kee-Tae Kim, Jongsoo Kim, Hyosung Kim, Gwanjeong Kim, Florian Kirchschlager, Jason Kirk, Masato I.N. Kobayashi, Takayoshi Kusune, Jungmi Kwon, Kevin Lacaille, Chi-Yan Law, Hyeseung Lee, Chin-Fei Lee, Sang-Sung Lee, Jeong-Eun Lee, Dalei Li, Di Li, Guangxing Li, Sheng-Yuan Liu, Tie Liu, Hong-Li Liu, Xing Lu, A-Ran Lyo, Steve Mairs, Masafumi Matsumura, Brenda Matthews, Gerald Moriarty-Schieven, Tetsuya Nagata, Fumitaka Nakamura, Hiroyuki Nakanishi, Nguyen Bich Ngoc, Nagayoshi Ohashi, Geumsook Park, Harriet Parsons, Nicolas Peretto, Felix Priestley, Tae-Soo Pyo, Lei Qian, Ramprasad Rao, Jonathan Rawlings, Mark Rawlings, Brendan Retter, John Richer, Andrew Rigby, Sarah Sadavoy, Hiro Saito, Giorgio Savini, Masumichi Seta, Ekta Sharma, Yoshito Shimajiri, Hiroko Shinnaga, Ya-Wen Tang, Xindi Tang, Hoang Duc Thuong, Kohji Tomisaka, Le Ngoc Tram, Yusuke Tsukamoto, Serena Viti, Hongchi Wang, Anthony Whitworth, Jinjin Xie, Meng-Zhe Yang, Hsi-Wei Yen, Hyunju Yoo, Jinghua Yuan, Hyeong-Sik Yun, Tetsuya Zenko, Guoyin Zhang, Chuan-Peng Zhang, Yapeng Zhang, Jianjun Zhou, Lei Zhu, Ilse de Looze, Philippe André, C. Darren Dowell, Stewart Eyres, Sam Falle, Jean-François Robitaille, Sven van Loo   +154 more
doaj   +1 more source

INTERSTELLAR MAGNETIC FIELD SURROUNDING THE HELIOPAUSE

The Astrophysical Journal, 2010
This paper presents a three-dimensional analytical solution, in the limit of very low plasma β-ratio, for the distortion of the interstellar magnetic field surrounding the heliopause. The solution is obtained using a line dipole method that is the integration of point dipole along a semi-infinite line; it represents the magnetic field caused by the ...
openaire   +1 more source

B-fields and Dust in Interstellar Filaments Using Dust Polarization (BALLAD-POL). IV. Grain Alignment Mechanisms in the Cocoon Nebula (IC 5146) Using Polarization Observations from JCMT/POL-2

The Astrophysical Journal
The polarization of starlight and thermal dust emission from aligned nonspherical grains provides a powerful tool for tracing magnetic field morphologies and strengths in the diffuse interstellar medium to star-forming regions, and constraining the ...
Saikhom Pravash, Thiem Hoang, Archana Soam, Eun Jung Chung, Diep Ngoc Pham, Nguyen Bich Ngoc, Le Ngoc Tram   +6 more
doaj   +1 more source

Magnetically Aligned Striations in the L914 Filamentary Cloud

The Astronomical Journal
We present CO( J = 1–0) multiline observations toward the L914 dark cloud in the vicinity of the Cygnus X region, using the 13.7 m millimeter telescope of the Purple Mountain Observatory.
Li Sun, Xuepeng Chen, Min Fang, Shaobo Zhang, Yan Gong, Jiancheng Feng, Xuefu Li, Qing-Zeng Yan, Ji Yang   +8 more
doaj   +1 more source

What Rogue Hydrogen Clouds Tell Us about Galactic Magnetic Fields

The Astrophysical Journal
Observations of the Milky Way and external galaxies support the idea that large-scale magnetic fields are concentrated in galactic disks, with halo magnetic fields at least an order of magnitude weaker.
Bailey M. Forster, Tyler J. Foster, Roland Kothes, Alex S. Hill, Jo-Anne C. Brown   +4 more
doaj   +1 more source

B-fields and Dust in Interstellar Filaments Using Dust Polarization (BALLAD-POL). III. Grain Alignment and Disruption Mechanisms in G34.43+0.24 Using Polarization Observations from JCMT/POL-2

The Astrophysical Journal
Polarization of starlight and thermal dust emission due to aligned non-spherical grains helps us to trace magnetic field ( B -field) morphology in molecular clouds and to study grain alignment mechanisms.
Saikhom Pravash, Archana Soam, Pham Ngoc Diep, Thiem Hoang, Nguyen Bich Ngoc, Le Ngoc Tram   +5 more
doaj   +1 more source

B-fields and Dust in Interstellar Filaments Using Dust Polarization (BALLAD-POL). VI. Grain Alignment Mechanisms in the Massive Quiescent Filament G16.96+0.27 Using Dust Polarization Observations from JCMT/POL-2

The Astrophysical Journal Supplement Series
Dust polarization induced by aligned nonspherical grains acts as an important tool to trace the magnetic field ( B -field) morphologies and strengths in molecular clouds and constrain grain properties and their alignment mechanisms.
Saikhom Pravash, Thiem Hoang, Archana Soam, Qi-Lao Gu, Tie Liu, Pham Ngoc Diep, Le Ngoc Tram, Nguyen Bich Ngoc   +7 more
doaj   +1 more source

Assessing Zeeman Measurements of Magnetic Fields in Synthetic H I Observations

The Astrophysical Journal Supplement Series
Zeeman observations provide the only direct probe of line-of-sight (LOS) magnetic fields in the interstellar medium. To evaluate their accuracy and limitations, we generate synthetic H I Zeeman spectra from magnetohydrodynamic simulations and idealized ...
Duo Xu, Peter G. Martin, Stella S. R. Offner, Robert Gutermuth, Michael Y. Grudić, Joshua S. Speagle   +5 more
doaj   +1 more source

A New Constraint on the Relative Disorder of Magnetic Fields between Neutral Interstellar Medium Phases

The Astrophysical Journal
Utilizing Planck polarized dust emission maps at 353 GHz and large-area maps of the neutral hydrogen (H i ) cold neutral medium (CNM) fraction ( f _CNM ), we investigate the relationship between dust polarization fraction ( p _353 ) and f _CNM in the ...
Minjie Lei, S. E. Clark
doaj   +1 more source