English
Related papers

Related papers: Interferometric mapping of Magnetic fields: G30.79…

200 papers

Polarization of starlight and thermal dust emission caused by aligned dust grains is a valuable tool to characterize magnetic fields (B-fields) and constrain dust properties. However, the physics of grain alignment is not fully understood.…

Astrophysics of Galaxies · Physics 2024-09-10 Nguyen Bich Ngoc , Thiem Hoang , Pham Ngoc Diep , Le Ngoc Tram

Dust polarization observational results are analyzed for the high-mass star formation region W51 from the largest parent cloud ($\sim$ 2~pc, JCMT) to the large-scale envelope ($\sim$ 0.5~pc, BIMA) down to the collapsing core e2 ($\sim$…

Astrophysics of Galaxies · Physics 2015-06-03 Patrick M. Koch , Ya-Wen Tang , Paul T. P. Ho

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

We present J' and K' imaging linear polarimetric adaptive optics observations of NGC 1068 using MMT-Pol on the 6.5-m MMT. These observations allow us to study the torus from a magnetohydrodynamical (MHD) framework. In a 0.5" (30 pc)…

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…

Linear polarization of diffuse Galactic emission is a signature of magnetic fields in the interstellar medium of our Galaxy. Observations at high frequencies are less affected by Faraday depolarization than those at lower frequencies and…

Astrophysics of Galaxies · Physics 2015-05-27 L. Xiao , J. L. Han , W. Reich , X. H. Sun , R. Wielebinski , P. Reich , H. Shi , O. Lochner

New visible polarization data combined with existing IR and FIR polarization data are used to study how the magnetic field threading the filamentary molecular cloud GF 9 connects to larger structures in its general environment. We find that…

Astrophysics · Physics 2008-11-26 F. Poidevin , P. Bastien

We present a large-scale view of the magnetic field in the central 2deg * 2deg region of our Galaxy. The polarization of point sources has been measured in the J, H, and Ks bands using the near-infrared polarimetric camera SIRPOL on the 1.4…

The Serpens South embedded cluster, which is located at the constricted part in a long filamentary infrared dark cloud, is believed to be in very early stage of cluster formation. We present results of near-infrared (JHKs) polarization…

Solar and Stellar Astrophysics · Physics 2015-05-27 K. Sugitani , F. Nakamura , M. Watanabe , M. Tamura , S. Nishiyama , T. Nagayama , R. Kandori , T. Nagata , S. Sato , R. A. Gutermuth , G. W. Wilson , R. Kawabe

We present sub-arcsecond 7.5$-$13 $\mu$m imaging- and spectro-polarimetric observations of NGC 1068 using CanariCam on the 10.4-m Gran Telescopio CANARIAS. At all wavelengths, we find: (1) A 90 $\times$ 60 pc extended polarized feature in…

We present a NIR polarimetric map of the 1deg by 1deg region toward the Galactic center. Comparing Stokes parameters between highly reddened stars and less reddened ones, we have obtained a polarization originating from magnetically aligned…

Astrophysics of Galaxies · Physics 2010-02-01 Shogo Nishiyama , Hirofumi Hatano , Motohide Tamura , Tetsuya Nagata

We present near-infrared polarimetric results for N159/N160 star-forming complex, in the Large Magellanic Cloud (LMC) with SIRPOL, the polarimeter of the Infrared Survey Facility (IRSF). We separated foreground sources using their visual…

Astrophysics of Galaxies · Physics 2017-03-08 Jaeyeong Kim , Woong-Seob Jeong , Jeonghyun Pyo , Soojong Pak , Won-Kee Park , Jungmi Kwon , Motohide Tamura

We present and analyze observations of polarized dust emission at 850 $\mu$m towards the central 1 pc $\times$ 1 pc hub-filament structure of Monoceros R2 (Mon R2). The data are obtained with SCUBA-2/POL-2 on the James Clerk Maxwell…

Astrophysics of Galaxies · Physics 2022-12-21 Jihye Hwang , Jongsoo Kim , Kate Pattle , Chang Won Lee , Patrick M. Koch , Doug Johnstone , Kohji Tomisaka , Anthony Whitworth , Ray S. Furuya , Ji-hyun Kang , A-Ran Lyo , Eun Jung Chung , Doris Arzoumanian , Geumsook Park , Woojin Kwon , Shinyoung Kim , Motohide Tamura , Jungmi Kwon , Archana Soam , Ilseung Han , Thiem Hoang , Kyoung Hee Kim , Takashi Onaka , Eswaraiah Chakali , Derek Ward-Thompson , Hong-Li Liu , Xindi Tang , Wen Ping Chen , Masafumi Matsumura , Thuong Duc Hoang , Zhiwei Chen , Valentin J. M. Le Gouellec , Florian Kirchschlager , Fr ed erick Poidevin , Pierre Bastien , Keping Qiu , Tetsuo Hasegawa , Shih-Ping Lai , Do-Young Byun , Jungyeon Cho , Minho Choi , Youngwoo Choi , Yunhee Choi , Il-Gyo Jeong , Miju Kang , Hyosung Kim , Kee-tae Kim , Jeong-Eun Lee , Sang-sung Lee , Yong-Hee Lee , Hyeseung Lee , Mi-Ryang Kim , Hyunju Yoo , Hyeong-Sik Yun , Mike Chen , James Di Francesco , Jason Fiege , Laura M. Fissel , Erica Franzmann , Martin Houde , Kevin Lacaille , Brenda Matthews , Sarah Sadavoy , Gerald Moriarty-Schieven , Mehrnoosh Tahani , Tao-Chung Ching , Y. Sophia Dai , Yan Duan , Qilao Gu , Chi-Yan Law , Dalei Li , Di Li , Guangxing Li , Hua-bai Li , Tie Liu , Xing Lu , Lei Qian , Hongchi Wang , Jintai Wu , Jinjin Xie , Jinghua Yuan , Chuan-Peng Zhang , Guoyin Zhang , Yapeng Zhang , Jianjun Zhou , Lei Zhu , David Berry , Per Friberg , Sarah Graves , Junhao Liu , Steve Mairs , Harriet Parsons , Mark Rawlings , Yasuo Doi , Saeko Hayashi , Charles L. H. Hull , Tsuyoshi Inoue , Shu-ichiro Inutsuka , Kazunari Iwasaki , Akimasa Kataoka , Koji Kawabata , Gwanjeong Kim , Masato I. N. Kobayashi , Tetsuya Nagata , Fumitaka Nakamura , Hiroyuki Nakanishi , Tae-Soo Pyo , Hiro Saito , Masumichi Seta , Yoshito Shimajiri , Hiroko Shinnaga , Yusuke Tsukamoto , Tetsuya Zenko , Huei-Ru Vivien Chen , Hao-Yuan Duan , Lapo Fanciullo , Francisca Kemper , Chin-Fei Lee , Sheng-Jun Lin , Sheng-Yuan Liu , Nagayoshi Ohashi , Ramprasad Rao , Ya-Wen Tang , Jia-Wei Wang , Meng-Zhe Yang , Hsi-Wei Yen , Tyler L. Bourke , Antonio Chrysostomou , Victor Debattista , David Eden , Stewart Eyres , Sam Falle , Gary Fuller , Tim Gledhill , Jane Greaves , Matt Griffin , Jennifer Hatchell , Janik Karoly , Jason Kirk , Vera Konyves , Steven Longmore , Sven van Loo , Ilse de Looze , Nicolas Peretto , Felix Priestley , Jonathan Rawlings , Brendan Retter , John Richer , Andrew Rigby , Giorgio Savini , Anna Scaife , Serena Viti , Pham Ngoc Diep , Nguyen Bich Ngoc , Le Ngoc Tram , Philippe Andre , Simon Coude , C. Darren Dowell , Rachel Friesen , Jean-Franc ois Robitaille

We present 230 GHz continuum polarization observations with the Atacama Large Milimeter/Submillimeter Array (ALMA) at a resolution of 0$\farcs1$ ($\sim 540$~au) in the high-mass star-forming regions W51 e2 and e8. These observations resolve…

Interaction of three-dimensional magnetic fields, turbulence, and self-gravity in the molecular cloud is crucial in understanding star formation but has not been addressed so far. In this work, we target the low-mass star-forming region…

Astrophysics of Galaxies · Physics 2023-07-26 Yue Hu , Alex Lazarian

Optical and infrared polarization mapping and recent Planck observations of the filamentary cloud L1495 in Taurus show that the large-scale magnetic field is approximately perpendicular to the long axis of the cloud. We use the HAWC+…

$\textit{Aims.}$ We present a case study to demonstrate the potential of multi-wavelength polarization measurements. The aim is to investigate the effects that dichroic polarization and thermal re-emission have on tracing the magnetic field…

Solar and Stellar Astrophysics · Physics 2015-06-19 S. Reissl , S. Wolf , D. Seifried

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

Our aim is to study the polarization of thermal dust emission to see if the alignment of grain by radiative torques could explain the observed relation between the degree of polarization and the intensity in dense cores. Predictions are…

Astrophysics · Physics 2009-11-11 V. -M. Pelkonen , M. Juvela , P. Padoan