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We present Submillimeter Array 880 $\mu$m dust polarization observations of six massive dense cores in the DR21 filament. The dust polarization shows complex magnetic field structures in the massive dense cores with sizes of 0.1 pc, in…

Astrophysics of Galaxies · Physics 2017-04-05 Tao-Chung Ching , Shih-Ping Lai , Qizhou Zhang , Josep M. Girart , Keping Qiu , Hauyu B. Liu

Imaging polarimetry at 1.65 and 2.2 $\mu $m is presented for the classic starburst galaxy M82 and the advanced merger system Cen A. Polarimetry at near IR wavelengths allows the magnetic field geometry in galaxies to be probed much deeper…

Astrophysics · Physics 2009-10-31 Terry Jay Jones

Measurement of magnetic fields in dense molecular clouds is essential for understanding the fragmentation process prior to star formation. Radio interferometric observations of CCS 22.3 GHz emission, from the starless core TMC-1C, have been…

Astrophysics of Galaxies · Physics 2022-08-17 Atanu Koley , Nirupam Roy , Emmanuel Momjian , Anuj P. Sarma , Abhirup Datta

The polarized Galactic thermal dust emission constitutes a major probe for the study and the characterization of the Galactic Magnetic Field (GMF). In this paper, we apply the maximum-likelihood analysis that we established in our companion…

Astrophysics of Galaxies · Physics 2021-11-03 Vincent Pelgrims , Juan Francisco Macías-Pérez

The southwestern (SW) part of the Galactic H II region M17 contains an obscured ionization front that is most easily seen at infrared and radio wavelengths. It is nearly edge-on, thus offering an excellent opportunity to study the way in…

In this work, we study the magnetic field morphology of selected star-forming clouds spread over the galactic latitude ($b$) range, $-10^\circ$ to $10^\circ$. The polarimetric observation of clouds CB24, CB27 and CB188 are conducted to…

Astrophysics of Galaxies · Physics 2022-06-22 Gulafsha B. Choudhury , Himadri S. Das , B. J. Medhi , J. C. Pandey , S. Wolf , T. K. Dhar , A. M. Mazarbhuiya

We present polarization maps of NGC2071IR from thermal dust emission at 1.3 mm and from CO J=$2 \to 1$ line emission. The observations were obtained using the Berkeley-Illinois-Maryland Association array in the period 2002-2004. We detected…

Astrophysics · Physics 2008-11-26 P. C. Cortes , R. M. Crutcher , B. C. Matthews

We report the detection of the ordered alignment between the magnetic field and kpc-scale bubbles in the nearby spiral galaxy, NGC\,628. Applying the Velocity Gradient Technique (VGT) on CO spectroscopic data from the ALMA-PHANGS, the…

We studied the collapse of rotating molecular cloud cores with inclined magnetic fields, based on three-dimensional numerical simulations.The numerical simulations start from a rotating Bonnor-Ebert isothermal cloud in a uniform magnetic…

Astrophysics · Physics 2009-11-11 Masahiro N. Machida , Tomoaki Matsumoto , Tomoyuki Hanawa , Kohji Tomisaka

Sh 2-29 is a conspicuous star-forming region marked by the presence of massive embedded stars as well as several notable interstellar structures. In this research, our goals were to determine the role of magnetic fields and to study the…

We report on detection of an ordered magnetic field (B field) threading a massive star-forming clump in the molecular cloud G35.2-0.74, using Submillimeter Array observations of polarized dust emission. Thanks to the sensitive and…

Astrophysics of Galaxies · Physics 2015-06-17 Keping Qiu , Qizhou Zhang , Karl M. Menten , Hauyu B. Liu , Ya-Wen Tang

We report the first detection of galactic spiral structure by means of thermal emission from magnetically aligned dust grains. Our 89 $\mu$m polarimetric imaging of NGC 1068 with the High-resolution Airborne Wideband Camera/Polarimeter…

One of the most informative techniques of studying magnetic fields in molecular clouds is based on the use of starlight polarization and polarized emission arising from aligned dust. How reliable the interpretation of the polarization maps…

Astrophysics · Physics 2017-01-18 A. Lazarian

We present the B-fields mapped in IRDC G34.43+0.24 using 850\,$\mu$m polarized dust emission observed with the POL-2 instrument at JCMT. We examine the magnetic field geometries and strengths in the northern, central, and southern regions…

Context. Magnetic fields play a fundamental role in the dynamical evolution of protoplanetary disks, in particular via magnetically induced disk winds. The magnetic field structure at the disk surface is crucial for driving the disk winds;…

Earth and Planetary Astrophysics · Physics 2023-02-27 Ilse de Langen , Ryo Tazaki

The complex spectropolarimetric patterns around strong chromospheric lines, the result of subtle spectroscopic and transport mechanisms, are sensitive, sometimes in unexpected ways, to the presence of magnetic fields in the chromosphere,…

Solar and Stellar Astrophysics · Physics 2017-10-12 R. Manso Sainz , T. del Pino Alemán , R. Casini

Polarized emission from interstellar dust grains is commonly used to infer information about the underlying magnetic field from the diffuse interstellar medium to molecular cloud cores. Therefore, the ability to accurately determine…

Solar and Stellar Astrophysics · Physics 2026-02-19 Marco Leon Scheiter , Sebastian Wolf

We present BISTRO Survey 850 {\mu}m dust emission polarisation observations of the L1495A-B10 region of the Taurus molecular cloud, taken at the JCMT. We observe a roughly triangular network of dense filaments. We detect 9 of the dense…

Astrophysics of Galaxies · Physics 2023-04-05 Derek Ward-Thompson , Janik Karoly , Kate Pattle , Anthony Whitworth , Jason Kirk , David Berry , Pierre Bastien , Tao-Chung Ching , Simon Coude , Jihye Hwang , Woojin Kwon , Archana Soam , Jia-Wei Wang , Tetsuo Hasegawa , Shih-Ping Lai , Keping Qiu , Doris Arzoumanian , Tyler L. Bourke , Do-Young Byun , Huei-Ru Vivien Chen , Wen Ping Chen , Mike Chen , Zhiwei Chen , Jungyeon Cho , Minho Choi , Youngwoo Choi , Yunhee Choi , Antonio Chrysostomou , Eun Jung Chung , Sophia Dai , Victor Debattista , James Di Francesco , Pham Ngoc Diep , Yasuo Doi , Hao-Yuan Duan , Yan Duan , Chakali Eswaraiah , Lapo Fanciullo , Jason Fiege , Laura M. Fissel , Erica Franzmann , Per Friberg , Rachel Friesen , Gary Fuller , Ray Furuya , Tim Gledhill , Sarah Graves , Jane Greaves , Matt Griffin , Qilao Gu , Ilseung Han , Saeko Hayashi , Thiem Hoang , Martin Houde , Charles L. H. Hull , Tsuyoshi Inoue , Shu-ichiro Inutsuka , Kazunari Iwasaki , Il-Gyo Jeong , Doug Johnstone , Vera Konyves , Ji-hyun Kang , Miju Kang , Akimasa Kataoka , Koji Kawabata , Francisca Kemper , Jongsoo Kim , Shinyoung Kim , Gwanjeong Kim , Kyoung Hee Kim , Mi-Ryang Kim , Kee-Tae Kim , Hyosung Kim , Florian Kirchschlager , Masato I. N. Kobayashi , Patrick M. Koch , Takayoshi Kusune , Jungmi Kwon , Kevin Lacaille , Chi-Yan Law , Chang Won Lee , Hyeseung Lee , Yong-Hee Lee , Chin-Fei Lee , Jeong-Eun Lee , Sang-Sung Lee , Dalei Li , Di Li , Guangxing Li , Hua-bai Li , Sheng-Jun Lin , Hong-Li Liu , Tie Liu , Sheng-Yuan Liu , Junhao Liu , Steven Longmore , 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 , Takashi Onaka , 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 , Yoshito Shimajiri , Hiroko Shinnaga , Mehrnoosh Tahani , Motohide Tamura , Ya-Wen Tang , Xindi Tang , Kohji Tomisaka , Le Ngoc Tram , Yusuke Tsukamoto , Serena Viti , Hongchi Wang , Jintai Wu , Jinjin Xie , Meng-Zhe Yang , Hsi-Wei Yen , Hyunju Yoo , Jinghua Yuan , Hyeong-Sik Yun , Tetsuya Zenko , Guoyin Zhang , Yapeng Zhang , Chuan-Peng Zhang , Jianjun Zhou , Lei Zhu , Ilse de Looze , Philippe Andre , C. Darren Dowell , David Eden , Stewart Eyres , Sam Falle , Valentin J. M. Le Gouellec , Frederick Poidevin , Jean-Francois Robitaille , Sven van Loo

(Shortened) We observed NGC 253 with the VLA in D-configuration and the Effelsberg 100-m telescope using radio continuum polarimetry. Observations at 6.2 cm and 3.6 cm were combined to calculate the RM distribution and to correct for…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Volker Heesen , Marita Krause , Rainer Beck , Ralf-Jürgen Dettmar

A full understanding of high-mass star formation requires the study of one of the most elusive components of the energy balance in the interstellar medium: magnetic fields. We report ALMA 1.2 mm, high-resolution (700 au) dust polarization…