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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 742368.0, MPI für Astronomie / Publikationen_mpia
First results from BISTRO: a SCUBA-2 polarimeter survey of the Gould Belt
Authors:Ward-Thompson, D.; Pattle, K.; Bastien, P.; Furuya, R. S.; Kwon, W.; Lai, S.-P.; Qiu, K.; Berry, D.; Choi, M.; Coudé, S.; Di Francesco, J.; Hoang, T.; Franzmann, E.; Friberg, P.; Graves, S. F.; Greaves, J. S.; Houde, M.; Johnstone, D.; Kirk, J. M.; Koch, P. M.; Kwon, J.; Lee, C. W.; Li, D.; Matthews, B. C.; Mottram, J. C.; Parsons, H.; Pon, A.; Rao, R.; Rawlings, M.; Shinnaga, H.; Sadavoy, S.; van Loo, S.; Aso, Y.; Byun, D.-Y.; Eswaraiah, C.; Chen, H.-R.; Chen, M.-Y.; Chen, W. P.; Ching, T.-C.; Cho, J.; Chrysostomou, A.; Chung, E. J.; Doi, Y.; Drabek-Maunder, E.; Eyres, S. P. S.; Fiege, J.; Friesen, R. K.; Fuller, G.; Gledhill, T.; Griffin, M. J.; Gu, Q.; Hasegawa, T.; Hatchell, J.; Hayashi, S. S.; Holland, W.; Inoue, T.; Inutsuka, S.-i.; Iwasaki, K.; Jeong, I.-G.; Kang, J.-h.; Kang, M.; Kang, S.-j.; Kawabata, K. S.; Kemper, F.; Kim, G.; Kim, J.; Kim, K.-T.; Kim, K. H.; Kim, M.-R.; Kim, S.; Lacaille, K. M.; Lee, J.-E.; Lee, S.-S.; Li, D.; Li, H.-b.; Liu, H.-L.; Liu, J.; Liu, S.-Y.; Liu, T.; Lyo, A.-R.; Mairs, S.; Matsumura, M.; Moriarty-Schieven, G. H.; Nakamura, F.; Nakanishi, H.; Ohashi, N.; Onaka, T.; Peretto, N.; Pyo, T.-S.; Qian, L.; Retter, B.; Richer, J.; Rigby, A.; Robitaille, J.-F.; Savini, G.; Scaife, A. M. M.; Soam, A.; Tamura, M.; Tang, Y.-W.; Tomisaka, K.; Wang, H.; Wang, J.-W.; Whitworth, A. P.; Yen, H.-W.; Yoo, H.; Yuan, J.; Zhang, C.-P.; Zhang, G.; Zhou, J.; Zhu, L.; André, P.; Dowell, C. D.; Falle, S.; Tsukamoto, Y.
Date of Publication (YYYY-MM-DD):2017
Title of Journal:The Astrophysical Journal
Start Page:id. 66 (10 pp)
Audience:Not Specified
Abstract / Description:We present the first results from the B-fields In STar-forming Region Observations (BISTRO) survey, using the Sub-millimetre Common-User Bolometer Array 2 camera, with its associated polarimeter (POL-2), on the James Clerk Maxwell Telescope in Hawaii. We discuss the survey’s aims and objectives. We describe the rationale behind the survey, and the questions that the survey will aim to answer. The most important of these is the role of magnetic fields in the star formation process on the scale of individual filaments and cores in dense regions. We describe the data acquisition and reduction processes for POL-2, demonstrating both repeatability and consistency with previous data. We present a first-look analysis of the first results from the BISTRO survey in the OMC 1 region. We see that the magnetic field lies approximately perpendicular to the famous “integral filament” in the densest regions of that filament. Furthermore, we see an “hourglass” magnetic field morphology extending beyond the densest region of the integral filament into the less-dense surrounding material, and discuss possible causes for this. We also discuss the more complex morphology seen along the Orion Bar region. We examine the morphology of the field along the lower-density northeastern filament. We find consistency with previous theoretical models that predict magnetic fields lying parallel to low-density, non-self-gravitating filaments, and perpendicular to higher-density, self-gravitating filaments.
Free Keywords:ISM: individual objects: Orion A; OMC1; polarization; stars: formation; stars: magnetic field; submillimeter: ISM
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
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