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We present the results of simultaneous 450 $\mu$m and 850 $\mu$m polarization observations toward the massive star forming region NGC 2071IR, a target of the BISTRO (B-fields in Star-Forming Region Observations) Survey, using the POL-2…

Astrophysics of Galaxies · Physics 2021-10-04 A-Ran Lyo , Jongsoo Kim , Sarah Sadavoy , Doug Johnstone , David Berry , Kate Pattle , Woojin Kwon , Pierre Bastien , Takashi Onaka , James Di Francesco , Ji-Hyun Kang , Ray Furuya , Charles L. H. Hull , Motohide Tamura , Patrick M. Koch , Derek Ward-Thompson , Tetsuo Hasegawa , Thiem Hoang , Doris Arzoumanian , Chang Won Lee , Chin-Fei Lee , Do-Young Byun , Florian Kirchschlager , Yasuo Doi , Kee-Tae Kim , Jihye Hwang , Pham Ngoc Diep , Lapo Fanciullo , Sang-Sung Lee , Geumsook Park , Hyunju Yoo , Eun Jung Chung , Anthony Whitworth , Steve Mairs , Archana Soam , Tie Liu , Xindi Tang , Simon Coudé , Philippe André , Tyler L. Bourke , Huei-Ru Vivien Chen , Zhiwei Chen , Wen Ping Chen , Mike Chen , Tao-Chung Ching , Jungyeon Cho , Minho Choi , Yunhee Choi , Antonio Chrysostomou , Sophia Dai , C. Darren Dowell , Hao-Yuan Duan , Yan Duan , David Eden , Chakali Eswaraiah , Stewart Eyres , Jason Fiege , Laura M. Fisse , Erica Franzmann , Per Friberg , Rachel Friesen , Gary Fuller , Tim Gledhill , Sarah Graves , Jane Greaves , Matt Griffin , Qilao Gu , Ilseung Han , Jannifer Hatchell , Saeko Hayashi , Martin Houde , Tsuyoshi Inoue , Shu-ichiro Inutsuka , Kazunari Iwasaki , Il-Gyo Jeong , Miju Kang , Akimasa Kataoka , Koji Kawabata , Francisca Kemper , Gwanjeong Kim , Mi-Ryang Kim , Shinyoung Kim , Kyoung Hee Kim , Jason Kirk , Masato I. N. Kobayashi , Vera Könyves , Takayoshi Kusune , Jungmi Kwon , Kevin Lacaille , Shih-Ping Lai , Chi-Yan Law , Jeong-Eun Lee , Yong-Hee Lee , Hyeseung Lee , Dalei Li , Di Li , Hua-Bai Li , Hong-Li Liu , Junhao Liu , Sheng-Yuan Liu , Xing Lu , Masafumi Matsumura , Brenda Matthews , Gerald Moriarty-Schieven , Tetsuya Nagata , Fumitaka Nakamura , Hiroyuki Nakanishi , Nguyen Bich Ngoc , Nagayoshi Ohashi , Harriet Parsons , Nicolas Peretto , Felix Priestley , Tae-soo Pyo , Lei Qian , Keping Qiu , Ramprasad Rao , Jonathan Rawlings , Mark G. Rawlings , Brendan Retter , John Richer , Andrew Rigby , Hiro Saito , Giorgio Savini , Anna Scaife , Masumichi Seta , Yoshito Shimajiri , Hiroko Shinnaga , Mehrnoosh Tahani , Ya-Wen Tang , Kohji Tomisaka , Le Ngoc Tram , Yusuke Tsukamoto , Serena Viti , Jia-Wei Wang , Hongchi Wang , Jinjin Xie , Hsi-Wei Yen , Jinghua Yuan , Hyeong-Sik Yun , Tetsuya Zenko , Guoyin Zhang , Chuan-Peng Zhang , Yapeng Zhang , Jianjun Zhou , Lei Zhu , Ilse de Looze

We describe a morphological imprint of magnetization found when considering the relative orientation of the magnetic field direction with respect to the density structures in simulated turbulent molecular clouds. This imprint was found…

Astrophysics of Galaxies · Physics 2013-08-27 J. D. Soler , P. Hennebelle , P. G. Martin , M. A. Miville-Deschênes , C. B. Netterfield , L. M. Fissel

At high densities fluids of strongly dipolar spherical particles exhibit spontaneous long-ranged orientational order. Typically, due to demagnetization effects induced by the long range of the dipolar interactions, the magnetization…

Soft Condensed Matter · Physics 2009-10-30 B. Groh , S. Dietrich

Magnetic fields pervade in the interstellar medium (ISM) and are believed to be important in the process of star formation, yet probing magnetic fields in star formation regions is challenging. We propose a new method to use Faraday…

Astrophysics of Galaxies · Physics 2018-06-27 M. Tahani , R. Plume , J. C. Brown , J. Kainulainen

Calculations are performed for the linear polarization of starlight due to extinction by aligned dust grains when the starlight traverses a medium with irregular magnetic fields. This medium is intended to represent the optically thick…

Astrophysics · Physics 2009-10-31 D. S. Wiebe , W. D. Watson

We present a study of the relative orientation between the magnetic field and elongated cloud structures for the $\rho$ Oph A and $\rho$ Oph E regions in L1688 in the Ophiuchus molecular cloud. Combining inferred magnetic field orientation…

We report ALMA observations of polarized dust emission from the protostellar source Ser-emb 8 at a linear resolution of 140 au. Assuming models of dust-grain alignment hold, the observed polarization pattern gives a projected view of the…

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…

We present high quality near infrared imaging polarimetry of HL Tau at 0.4 to 0.6 arcsec resolution, obtained with Subaru/CIAO and UKIRT/IRCAM. 3-D Monte Carlo modelling with aligned oblate grains is used to probe the structure of the…

A key indicator of the galactic environment of the Sun is provided by the magnetic field in the interstellar medium (ISM), which influences the shape of the heliosphere. The direction of the nearby interstellar magnetic field (ISMF) is…

We present a study of the magnetic field of the Small Magellanic Cloud (SMC), carried out using radio Faraday rotation and optical starlight polarization data. Consistent negative rotation measures (RMs) across the SMC indicate that the…

High-resolution, wide-area mapping of magnetic field geometries within molecular clouds, and the star-forming filaments and cores within them, is crucial in order to understand the role of magnetic fields in the star formation process. We…

We present a statistical study of the relative orientation in the plane of the sky between interstellar magnetic fields and filaments hosting cold clumps. For the first time, we consider both the density of the environment and the density…

Astrophysics of Galaxies · Physics 2019-03-15 D. Alina , I. Ristorcelli , L. Montier , E. Abdikamalov , M. Juvela , K. Ferrière , J. -Ph. Bernard , E. R. Micelotta

Radio quasar sightlines with strong MgII absorption lines display statistically enhanced Faraday Rotation Measures (RM) indicating the presence of additional magneto-active plasma with respect to sightlines free of such absorption. In this…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 M. L. Bernet , F. Miniati , S. J. Lilly

The complete three-dimensional structure of the magnetic field within molecular clouds has eluded determination despite its high value in determining controlling factors in the star formation process, as it cannot be directly probed…

Astrophysics of Galaxies · Physics 2019-03-13 Che-Yu Chen , Patrick K. King , Zhi-Yun Li , Laura M. Fissel , Renato R. Mazzei

We present results of 1.3 mm dust polarization observations toward 16 nearby, low-mass protostars, mapped with ~2.5" resolution at CARMA. The results show that magnetic fields in protostellar cores on scales of ~1000 AU are not tightly…

We compare the structure of synthetic dust polarization with synthetic molecular line emission from radiative transfer calculations using a 3-dimensional, turbulent collapsing-cloud magnetohydrodynamics simulation. The histogram of relative…

Astrophysics of Galaxies · Physics 2023-03-29 Renato Mazzei , Zhi-Yun Li , Che-Yu Chen , Laura Fissel , Mike Chen , James Park

Magnetic fields permeate the Universe, including galaxy clusters, and affect the thermodynamical properties of the intra-cluster medium (ICM). Cosmological simulations predict that seed magnetic fields are amplified up to the $\mu$G-level…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-14 A. Pagliotta , C. J. Riseley , A. Bonafede , C. Stuardi , F. Loi

The Andromeda Galaxy (M31) is the nearest grand-design spiral galaxy. Thus far most studies in the radio regime concentrated on the 10 kpc ring. The central region of M31 has significantly different properties than the outer parts: The star…

Astrophysics of Galaxies · Physics 2015-06-22 René Gießübel , Rainer Beck

With the aim of characterizing the dynamical processes involved in the formation of young protostars, we present high angular resolution ALMA dust polarization observations of the Class 0 protostellar cores Serpens SMM1, Emb 8(N), and Emb…