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This paper presents the results of full polarization observations of the massive star-forming region W75N, conducted with 3 arcsec spatial resolutions at 345 GHz using the Submillimeter Array (SMA). The magnetic field structures in the…

Astrophysics of Galaxies · Physics 2023-07-13 Lingzhen Zeng , Qizhou Zhang , Felipe O. Alves , Tao-Chung Ching , Josep M. Girart , Junhao Liu

We have mapped the magnetic field ($B$-field) for a region of about 30 pc around the centre of our Galaxy, which encompasses the circumnuclear disk (CND), the minispiral, and the 20 km s$^{-1}$ and 50 km s$^{-1}$ molecular clouds, using…

Astrophysics of Galaxies · Physics 2024-06-12 M. S. Akshaya , Thiem Hoang

We report the first high spatial resolution submillimeter continuum observations of the Sagittarius B2 cloud complex using the Submillimeter Array (SMA). With the subarcsecond resolution provided by the SMA, the two massive star-forming…

Solar and Stellar Astrophysics · Physics 2015-05-28 S. -L. Qin , P. Schilke , R. Rolffs , C. Comito , D. C. Lis , Q. Zhang

We report the results of optical polarimetric observations of a Bok globule CB34 to study magnetic field structure on large scales ($10^5-10^6$ AU), which is combined with archival sub-mm observations to characterize the magnetic field…

Solar and Stellar Astrophysics · Physics 2016-11-23 A. Das , H. S. Das , Biman J. Medhi , S. Wolf

We have obtained sensitive dust continuum polarization observations at 850 $\mu$m in the B213 region of Taurus using POL-2 on SCUBA-2 at the James Clerk Maxwell Telescope (JCMT), as part of the BISTRO (B-fields in STar-forming Region…

Astrophysics of Galaxies · Physics 2021-06-23 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-François Robitaille , Sven van Loo

Magnetic and energetic properties are presented for 17 dense cores within a few hundred pc of the Sun. Their plane-of-sky field strengths are estimated from the dispersion of polarization directions, following Davis, Chandrasekhar and Fermi…

Astrophysics of Galaxies · Physics 2021-08-18 Philip C. Myers , Shantanu Basu

Magnetic fields of molecular clouds in the Central Molecular Zone (CMZ) have been relatively underobserved at sub-parsec resolution. Here we report JCMT/POL2 observations of polarized dust emission in the CMZ, which reveal magnetic field…

Detailed magnetic field structure of the dense core SL42 (CrA-E) in the Corona Australis molecular cloud complex was investigated based on near-infrared polarimetric observations of background stars to measure dichroically polarized light…

We present the first interferometric polarization map of the W51 e1/e2 molecular cores obtained with the BIMA array at 1.3 mm wavelength with approximately 3 arcsecond resolution. The polarization angle varies smoothly across the double…

Astrophysics · Physics 2009-11-06 Shih-Ping Lai , Richard M. Crutcher , Jose M. Girart , Ramprasad Rao

We report our observational results of 870 $\mu$m continuum emission and its linear polarization in the massive star formation site W51 e2/e8. Inferred from the linear polarization maps, the magnetic field in the plane of sky (B$_{\bot}$)…

Solar and Stellar Astrophysics · Physics 2009-07-22 Ya-Wen Tang , Paul T. P. Ho , Patrick M. Koch , Josep M. Girart , Shih-Ping Lai , Ramprasad Rao

The magnetic field structure of a star-forming Bok globule BHR 71 was determined based on near-infrared polarimetric observations of background stars. The magnetic field in BHR 71 was mapped from 25 stars. By using a simple 2D parabolic…

We present 1.3 mm ALMA dust polarization observations at a resolution of $\sim$0.02 pc of three massive molecular clumps, MM1, MM4, and MM9, in the infrared dark cloud G28.34+0.06. With the sensitive and high-resolution continuum data, MM1…

Astrophysics of Galaxies · Physics 2021-10-15 Junhao Liu , Qizhou Zhang , Keping Qiu , Hauyu Baobab Liu , Thushara Pillai , Josep Miquel Girart , Zhi-Yun Li , Ke Wang

The magnetic field structure, kinematical stability, and evolutionary status of the starless dense core Barnard 68 (B68) are revealed based on the near-infrared polarimetric observations of background stars, measuring the dichroically…

We report high angular resolution (3") Submillimeter Array (SMA) observations of the molecular cloud associated with the Ultra-Compact HII region G5.89-0.39. Imaged dust continuum emission at 870 micron reveals significant linear…

We present JCMT POL-2 850 um dust polarization observations and Mimir H band stellar polarization observations toward the starless core L1512. We detect the highly-ordered core-scale magnetic field traced by the POL-2 data, of which the…

We performed a highly sensitive search for magnetic fields on a large set of HgMn stars. With the aid of a new polarimeter attached to the HARPS spectrometer at the ESO 3.6m-telescope, we obtained high-quality circular polarization spectra…

We present the largest sample of high-mass star-forming regions observed using submillimetre imaging polarimetry. The data were taken using SCUBA in conjunction with the polarimeter on the JCMT in Hawaii. In total, 16 star forming regions…

Astrophysics · Physics 2009-11-13 R. L. Curran , A. Chrysostomou

We used the Submillimeter Array (SMA) to observe the thermal polarized dust emission from the protostellar source NGC 2024 FIR 5. The polarized emission outlines a partial hourglass morphology for the plane-of-sky component of the core…

Astrophysics of Galaxies · Physics 2015-05-20 Felipe de O. Alves , Josep M. Girart , Shih-Ping Lai , Ramprasad Rao , Qizhou Zhang
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