English
Related papers

Related papers: Magnetic field in mini starburst complex Sgr B2

200 papers

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…

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…

Observations of the properties of dense molecular clouds are critical in understanding the process of star-formation. One of the most important, but least understood, is the role of the magnetic fields. We discuss the possibility of using…

In this study, the detailed magnetic field structure of the dense protostellar core Barnard 335 (B335) was revealed based on near-infrared polarimetric observations of background stars to measure dichroically polarized light produced by…

We report new 350 micron polarization observations of the thermal dust emission from the cores surrounding the low-mass, Class 0 YSOs L1527, IC348-SMM2 and B335. We have inferred magnetic field directions from these observations, and have…

Understanding the initial conditions of star formation requires both observational studies and theoretical works taking into account the magnetic field, which plays an important role in star formation processes. Herein, we study the young…

Solar and Stellar Astrophysics · Physics 2023-01-18 Sakiko Fukaya , Hiroko Shinnaga , Ray S. Furuya , Kohji Tomisaka , Masahiro N. Machida , Naoto Harada

We have mapped linearly polarized dust emission from L183 with the JCMT SCUBA polarimeter and have analyzed these and our previously published data for the prestellar cores L183, L1544, and L43 in order to estimate magnetic field strengths…

Astrophysics · Physics 2009-11-07 R. M. Crutcher , D. J. Nutter , D. Ward-Thompson , J. M. Kirk

L328 core has three sub-cores S1, S2, and S3, among which the sub-core S2 contains L328-IRS, a Very Low Luminosity Object (VeLLO), which shows a CO bipolar outflow. Earlier investigations of L328 mapped cloud/envelope (parsec-scale)…

Astrophysics of Galaxies · Physics 2024-12-30 Shivani Gupta , Archana Soam , Janik Karoly , Chang Won Lee , Maheswar G

We present the first resolved map of plane-of-sky magnetic field strength for a quiescent molecular cloud. GRSMC 45.60+0.30 subtends 40 x 10 pc at a distance of 1.88 kpc, masses 16,000 M_sun, and exhibits no star formation. Near-infrared…

Astrophysics of Galaxies · Physics 2012-08-31 Robert C. Marchwinski , Michael D. Pavel , Dan P. Clemens

We report the first detection of an hourglass magnetic field aligned with a well-defined outflow-rotation system in a high-mass star-forming region. The observations were performed with Submillimeter Array toward G240.31+0.07, which harbors…

Astrophysics of Galaxies · Physics 2015-06-22 Keping Qiu , Qizhou Zhang , Karl M. Menten , Hauyu B. Liu , Ya-Wen Tang , Josep M. Girart

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

We present maps of the plane-of-sky magnetic field within two regions of the Taurus molecular cloud: one in the dense core L1495/B213 filament, the other in a diffuse region to the west. The field is measured from the polarization of…

Astrophysics of Galaxies · Physics 2015-05-30 Nicholas L. Chapman , Paul F. Goldsmith , Jorge L. Pineda , D. P. Clemens , Di Li , Marko Krco

We report the first high spatial resolution measurement of magnetic fields surrounding LkH$\alpha$ 101, a part of the Auriga-California molecular cloud. The observations were taken with the POL-2 polarimeter on the James Clerk Maxwell…

Astrophysics of Galaxies · Physics 2021-03-17 Nguyen Bich Ngoc , Pham Ngoc Diep , Harriet Parsons , Kate Pattle , Thiem Hoang , Derek Ward-Thompson , Le Ngoc Tram , Charles L. H. Hull , Mehrnoosh Tahani , Ray Furuya , Pierre Bastien , Keping Qiu , Tetsuo Hasegawa , Woojin Kwon , Yasuo Doi , Shih-Ping Lai , Simon Coude , David Berry , Tao-Chung Ching , Jihye Hwang , Archana Soam , Jia-Wei Wang , Doris Arzoumanian , Tyler L. Bourke , Do-Young Byun , Huei-Ru Vivien Chen , Zhiwei Chen , Wen Ping Chen , Mike Chen , Jungyeon Cho , Yunhee Choi , Minho Choi , Antonio Chrysostomou , Eun Jung Chung , Sophia Dai , James Di Francesco , Yan Duan , Hao-Yuan Duan , David Eden , Chakali Eswaraiah , Lapo Fanciullo , Jason Fiege , Laura M. Fissel , 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 , Tsuyoshi Inoue , Shu-ichiro Inutsuka , Kazunari Iwasaki , Il-Gyo Jeong , Doug Johnstone , Ji-hyun Kang , Sung-ju Kang , Miju Kang , Akimasa Kataoka , Koji Kawabata , Francisca Kemper , Kee-Tae Kim , Jongsoo Kim , Tae-Soo Pyo , Lei Qian , Ramprasad Rao , Mark Rawlings , Jonathan Rawlings , Brendan Retter , John Richer , Andrew Rigby , Sarah Sadavoy , Hiro Saito , Giorgio Savini , Anna Scaife , Masumichi Seta , Gwanjeong Kim , Shinyoung Kim , Kyoung Hee Kim , Mi-Ryang Kim , Florian Kirchschlager , Jason Kirk , Masato I. N. Kobayashi , Patrick M. Koch , Vera Konyves , Takayoshi Kusune , Jungmi Kwon , Kevin Lacaille , Chi-Yan Law , Sang-Sung Lee , Yong-Hee Lee , Chin-Fei Lee , Jeong-Eun Lee , Hyeseung Lee , Chang Won Lee , Di Li , Hua-bai Li , Dalei Li , Hong-Li Liu , Junhao Liu , Tie Liu , Sheng-Yuan Liu , Xing Lu , A-Ran Lyo , Steve Mairs , Masafumi Matsumura , Brenda Matthews , Gerald Moriarty-Schieven , Tetsuya Nagata , Fumitaka Nakamura , Hiroyuki Nakanishi , Nagayoshi Ohashi , Takashi Onaka , Geumsook Park , Nicolas Peretto , Yoshito Shimajiri , Hiroko Shinnaga , Motohide Tamura , Ya-Wen Tang , Xindi Tang , Kohji Tomisaka , Yusuke Tsukamoto , Serena Viti , Hongchi Wang , Anthony Whitworth , Jinjin Xie , Hsi-Wei Yen , Hyunju Yoo , Jinghua Yuan , Hyeong-Sik Yun , Tetsuya Zenko , Yapeng Zhang , Chuan-Peng Zhang , Guoyin Zhang , Jianjun Zhou , Lei Zhu , Ilse de Looze , Philippe Andre , C. Darren Dowell , Stewart Eyres , Sam Falle , Jean-Francois Robitaille , Sven van Loo

Massive stars ($M > 8$ \msun) typically form in parsec-scale molecular clumps that collapse and fragment, leading to the birth of a cluster of stellar objects. We investigate the role of magnetic fields in this process through dust…

Context. Magnetic fields can affect significantly the star formation process. The theory of the magnetically-driven collapse in a uniform field predicts that initially the contraction happens along the field lines. When the gravitational…

Solar and Stellar Astrophysics · Physics 2019-11-13 Elena Redaelli , Felipe O. Alves , Fabio P. Santos , Paola Caselli

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

Recent high-angular-resolution (up to 0.7") dust polarization observations toward star forming regions are summarized. With the Sub-Millimeter Array, the emission from the dense structures is traced and resolved. The detected magnetic field…

Astrophysics of Galaxies · Physics 2012-02-22 Ya-Wen Tang , Patrick M. Koch , Paul T. P. Ho

We present a detailed study of the Cep B molecular cloud based on sub-mm dust polarization and $^{13}$CO (J=3--2) spectral line observations obtained with SCUBA-2/POL-2 and HARP on the James Clerk Maxwell Telescope (JCMT). The 850 $\mu$m…

Multiscale studies of the morphology and strength of the magnetic field are crucial to properly unveil its role and relative importance in high-mass star and cluster formation. G31.41+0.31 (G31) is a hub-filament system that hosts a…