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Related papers: The Magnetic Field Structure in W51A

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Understanding the initial conditions of star formation requires both observational studies and theoretical works taking into account the magnetic field, which plays an important role in star formation processes. Herein, we study the young…

Solar and Stellar Astrophysics · Physics 2023-01-18 Sakiko Fukaya , Hiroko Shinnaga , Ray S. Furuya , Kohji Tomisaka , Masahiro N. Machida , Naoto Harada

We present 850 {\mu}m thermal dust polarization observations with a resolution of 14.4"(~ 0.13 pc) towards an infrared dark cloud G16.96+0.27 using JCMT/POL-2. The average magnetic field orientation, which roughly agrees with the…

The recent availability of high-resolution far-infrared (FIR) polarization observations of galaxies using HAWC+/SOFIA has facilitated studies of extragalactic magnetic fields in the cold and dense molecular disks.We investigate if any…

Magnetic fields are an important component of the interstellar medium (ISM) and exhibit strongly varying field strengths and a non-trivial correlation with the gas density. Its dynamical impact varies between individual regions of the ISM…

Astrophysics of Galaxies · Physics 2021-08-20 Philipp Girichidis

Observations of star-forming regions by the current and upcoming generation of submillimeter polarimeters will shed new light on the evolution of magnetic fields over the cloud-to-core size scales involved in the early stages of the star…

Astrophysics of Galaxies · Physics 2019-04-11 Kate Pattle , Laura Fissel

One of the key problems in star formation research is to determine the role of magnetic fields. Starting from the atomic inter-cloud medium (ICM) which has density nH ~ 1 per cubic cm, gas must accumulate from a volume several hundred pc…

Astrophysics of Galaxies · Physics 2015-05-13 Hua-bai Li , C. Darren Dowell , Alyssa Goodman , Roger Hildebrand , Giles Novak

The configuration of the regular magnetic field in M31 is deduced from radio polarization observations at the wavelengths 6, 11 and 20 cm. By fitting the observed azimuthal distribution of polarization angles, we find that the regular…

Astrophysics · Physics 2009-11-10 A. Fletcher , E. M. Berkhuijsen , R. Beck , A. Shukurov

We present 0.4 arcsec-resolution imaging polarimetry at 8.7, 10.3, and 12.5 microns, obtained with CanariCam at the Gran Telescopio Canarias, of the central region of W51 IRS2. The polarization, as high as 14 percent, arises from silicate…

Magnetic fields are believed to play an important role in controlling the stability and contraction of dense condensations of gas and dust leading to the formation of stars and planetary systems. In the present study, the magnetic field of…

We present the first detection of polarization around the Class 0 low-mass protostar L1157-mm at two different wavelengths. We show polarimetric maps at large scales (10" resolution at 350 um) from the SHARC-II Polarimeter and at smaller…

The formation of hot stars out of the cold interstellar medium lies at the heart of astrophysical research. Understanding the importance of magnetic fields during star formation remains a major challenge. With the advent of the Atacama…

Solar and Stellar Astrophysics · Physics 2020-12-09 H. Beuther , J. D. Soler , H. Linz , Th. Henning , C. Gieser , R. Kuiper , W. Vlemmings , P. Hennebelle , S. Feng , R. Smith , A. Ahmadi

Massive stars are crucial building blocks of galaxies and the universe, as production sites of heavy elements and as stirring agents and energy providers through stellar winds and supernovae. The field of magnetic massive stars has seen…

Solar and Stellar Astrophysics · Physics 2015-05-27 Rolf Walder , Doris Folini , Georges Meynet

The Galactic global magnetic field is thought to play a vital role in shaping Galactic structures such as spiral arms and giant molecular clouds. However, our knowledge of magnetic field structures in the Galactic plane at different…

We demonstrate that the combination of Zeeman, polarimetry and ion-to-neutral molecular line width ratio measurements permits the determination of the magnitude and orientation of the magnetic field in the weakly ionized parts of molecular…

The importance of the magnetic (B) field in the formation of infrared dark clouds (IRDCs) and massive stars is an ongoing topic of investigation. We studied the plane-of-sky B field for one IRDC, G028.23-00.19, to understand the interaction…

Astrophysics of Galaxies · Physics 2017-02-28 Sadia Hoq , D. P. Clemens , Andrés E. Guzmán , Lauren R. Cashman

Magnetic fields permeate the interstellar medium and are important in the star formation process. Determining the 3D magnetic fields of molecular clouds will allow us to better understand their role in the evolution of these clouds and…

We present the first results from the B-fields In STar-forming Region Observations (BISTRO) survey, using the Sub-millimetre Common-User Bolometer Array 2 (SCUBA-2) camera, with its associated polarimeter (POL-2), on the James Clerk Maxwell…

Astrophysics of Galaxies · Physics 2017-06-28 Derek Ward-Thompson , Kate Pattle , Pierre Bastien , Ray S. Furuya , Woojin Kwon , Shih-Ping Lai , Keping Qiu , David Berry , Minho Choi , Simon Coudé , James Di Francesco , Thiem Hoang , Erica Franzmann , Per Friberg , Sarah F. Graves , Jane S. Greaves , Martin Houde , Doug Johnstone , Jason M. Kirk , Patrick M. Koch , Jungmi Kwon , Chang Won Lee , Di Li , Brenda C. Matthews , Joseph C. Mottram , Harriet Parsons , Andy Pon , Ramprasad Rao , Mark Rawlings , Hiroko Shinnaga , Sarah Sadavoy , Sven van Loo , Yusuke Aso , Do-Young Byun , Eswariah Chakali , Huei-Ru Chen , Mike C. -Y. Chen , Wen Ping Chen , Tao-Chung Ching , Jungyeon Cho , Antonio Chrysostomou , Eun Jung Chung , Yasuo Doi , Emily Drabek-Maunder , Stewart P. S. Eyres , Jason Fiege , Rachel K. Friesen , Gary Fuller , Tim Gledhill , Matt J. Griffin , Qilao Gu , Tetsuo Hasegawa , Jennifer Hatchell , Saeko S. Hayashi , Wayne Holland , Tsuyoshi Inoue , Shu-ichiro Inutsuka , Kazunari Iwasaki , Il-Gyo Jeong , 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 , Kevin M. Lacaille , Jeong-Eun Lee , Sang-Sung Lee , Dalei Li , Hua-bai Li , Hong-Li Liu , Junhao Liu , Sheng-Yuan Liu , Tie Liu , A-Ran Lyo , Steve Mairs , Masafumi Matsumura , Gerald H. Moriarty-Schieven , Fumitaka Nakamura , Hiroyuki Nakanishi , Nagayoshi Ohashi , Takashi Onaka , Nicolas Peretto , Tae-Soo Pyo , Lei Qian , Brendan Retter , John Richer , Andrew Rigby , Jean-François Robitaille , Giorgio Savini , Anna M. M. Scaife , Archana Soam , Motohide Tamura , Ya-Wen Tang , Kohji Tomisaka , Hongchi Wang , Jia-Wei Wang , Anthony P. Whitworth , Hsi-Wei Yen , Hyunju Yoo , Jinghua Yuan , Chuan-Peng Zhang , Guoyin Zhang , Jianjun Zhou , Lei Zhu , Philippe André , C. Darren Dowell , Sam Falle , Yusuke Tsukamoto

Multi-frequency radio polarimetry of the diffuse Galactic synchrotron background gives new viewpoints on the Galactic magnetic field. Rotation measure maps reveal magnetic structures on arcminute to degree scales, such as a ring in…

Astrophysics · Physics 2015-06-24 M. Haverkorn , P. Katgert , A. G. de Bruyn , F. Heitsch

We present U,B,V,R,I imaging polarimetry of NGC 2100 and its surrounding environment, which comprise a part of the LMC 2 supershell. The morphology of the observed position angle distribution provides a tracer of the projected magnetic…

Astrophysics · Physics 2009-11-13 John P. Wisniewski , Karen S. Bjorkman , Antonio M. Magalhaes , Antonio Pereyra , ;

Magnetic fields play an important role in the evolution of interstellar medium and star formation. As the only direct probe of interstellar field strength, credible Zeeman measurements remain sparse due to the lack of suitable Zeeman…

Astrophysics of Galaxies · Physics 2021-12-24 Tao-Chung Ching , Di Li , Carl Heiles , Zhi-Yun Li , Lei Qian , Youling Yue , Jing Tang , Sihan Jiao