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Context. The polarized thermal emission from interstellar dust offers a valuable tool for probing both the dust and the magnetic field in the interstellar medium (ISM). However, existing observations only yield the total amount of dust…

Astrophysics of Galaxies · Physics 2026-01-14 Katia Ferrière , Ludovic Montier , Jean-Sébastien Carrière

Magnetic fields and turbulence may play a crucial role in the evolution of molecular clouds and ultimately in the formation of dense cores and stars. Despite being studied in many molecular clouds, the exact role of magnetic fields and…

Astrophysics of Galaxies · Physics 2026-03-26 A. Koley , P. Sanhueza , A. M. Stutz , P. Saha , F. A. Olguin , A. Ginsburg , N. Sandoval-Garrido , N. Castro-Toledo

In nearby star-forming clouds, amplification and dissipation of the magnetic field are known to play crucial roles in the star-formation process. The star-forming environment varies from place to place and era to era in galaxies. In the…

Solar and Stellar Astrophysics · Physics 2018-01-24 Koki Higuchi , Masahiro N. Machida , Hajime Susa

To characterize the magnetic field structure of the outflow and core region within a prototypical high-mass star-forming region, we analyzed polarized CO(3-2) - for the first time observed with the Submillimeter Array -- as well as 880mum…

Solar and Stellar Astrophysics · Physics 2015-05-20 H. Beuther , W. H. T. Vlemmings , R. Rao , F. F. S. van der Tak

We examine the effect of magnetic fields on star cluster formation by performing simulations following the self-gravitating collapse of a turbulent molecular cloud to form stars in ideal MHD. The collapse of the cloud is computed for global…

Astrophysics · Physics 2009-11-13 Daniel Price , Matthew Bate

Within four nearby (d < 160 pc) molecular clouds, we statistically evaluate the structure of the interstellar magnetic field, projected on the plane of the sky and integrated along the line of sight, as inferred from the polarized thermal…

Magnetic fields are believed to play an important role in the evolution of molecular clouds, from their large scale structure to dense cores, protostellar envelopes, and protoplanetary disks. How important is unclear, and whether magnetic…

Astrophysics · Physics 2007-05-23 Tyler L. Bourke , Alyssa A. Goodman

A 2D dynamic model is utilized to investigate star formation in rotating filamentary molecular clouds (FMCs) amidst magnetic fields. The study reveals that the emergence of field stars is possible under both weak and strong magnetic fields…

Astrophysics of Galaxies · Physics 2024-05-31 Ashok Mondal

Here, we report ALMA detections of polarized emission from dust, CS($J=5 \rightarrow 4$), and C$^{33}$S($J=5 \rightarrow 4$) toward the high-mass star-forming region NGC6334I(N). A clear ``hourglass'' magnetic field morphology was inferred…

We present a detailed study of the magnetic field structure in the G111 molecular cloud, a ring-like filamentary cloud within the NGC 7538 region. We utilized interstellar dust polarization from the Planck telescope to trace large-scale…

Linearly polarized dust emission traces the plane-of-sky magnetic field structure, thus allowing us to investigate the role of magnetic fields in the formation and evolution of cloud cores. In this work, we present observations of dust…

Solar and Stellar Astrophysics · Physics 2025-11-18 Shivani Gupta , Archana Soam , Janik Karoly , Chang Won Lee

We present the first ALMA dust polarization observations towards the high-mass star-forming regions W51 e2, e8, and W51 North in Band 6 (230 GHz) with a resolution around 0.26" ($\sim5$mpc). Polarized emission in all three sources is…

Astrophysics of Galaxies · Physics 2018-03-21 Patrick M. Koch , Ya-Wen Tang , Paul T. P. Ho , Hsi-Wei Yen , Yu-Nung Su , Shigehisa Takakuwa

We discuss a high resolution (FWHM~ 0.45 arcsec) image of the emissive polarization from warm dust in the minispiral in the Galactic Centre and discuss the implications for the magnetic field in the dusty filaments. The image was obtained…

Astrophysics of Galaxies · Physics 2018-08-01 P. F. Roche , E. Lopez-Rodriguez , C. M. Telesco , R. Schodel , C. Packham

High resolution (sub-)millimeter polarization observations have opened a new era in the understanding of how B-fields are organized in star forming regions, unveiling an intricate interplay between the B-fields and the gas in protostellar…

Astrophysics of Galaxies · Physics 2022-12-14 Valeska Valdivia , Anaëlle Maury , Patrick Hennebelle

Aims: In this paper we present a case study to investigate conditions necessary to detect a characteristic magnetic field substructure embedded in a large-scale field. A helical magnetic field with a surrounding hourglass shaped field is…

Solar and Stellar Astrophysics · Physics 2017-07-12 S. Reissl , D. Seifried , S. Wolf , R. Banerjee , R. S. Klessen

The degree to which the formation and evolution of clouds and filaments in the interstellar medium is regulated by magnetic fields remains an open question. Yet the fundamental properties of the fields (strength and 3D morphology) are not…

Astrophysics of Galaxies · Physics 2020-10-21 Stefan Reissl , Amelia M. Stutz , Ralf S. Klessen , Daniel Seifried , Stefanie Walch

Stars form predominantly in clusters inside dense clumps of molecular clouds that are both turbulent and magnetized. The typical size and mass of the cluster-forming clumps are $\sim 1$ pc and $\sim 10^2 - $ 10$^3$ M$_\odot$, respectively.…

Astrophysics of Galaxies · Physics 2015-05-19 Fumitaka Nakamura , Zhi-Yun Li

We present 870 um polarimetric observations toward 61 protostars in the Orion molecular clouds, with ~400 au (1") resolution using the Atacama Large Millimeter/submillimeter Array. We successfully detect dust polarization and outflow…

Methods: Observing the large pc-scale Stokes I mm dust continuum emission with the IRAM 30m telescope and the intermediate-scale (<0.1pc) polarized submm dust emission with the Submillimeter Array toward a sample of 20 high-mass…

We present observations of linear polarization from dust thermal emission at 850 $\mu m$ towards the starless cloud L183. These data were obtained at the James Clerk Maxwell Telescope (JCMT) using the Submillimetre Common-User Bolometer…

Solar and Stellar Astrophysics · Physics 2020-08-10 Janik Karoly , Archana Soam , B-G Andersson , Simon Coudé , Pierre Bastien , John E. Vaillancourt , Chang Won Lee