| DOI | Resolve DOI: https://doi.org/10.1017/S1743921307009428 |
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| Author | Search for: Curran, Rachel L.; Search for: Chrysostomou, Antonio; Search for: Matthews, Brenda C.1 |
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| Affiliation | - National Research Council Canada. NRC Herzberg Institute of Astrophysics
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| Format | Text, Article |
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| Conference | IAU Symposium 243, May 21-25, 2007, Grenoble, France |
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| Subject | techniques: polarimetric; submillimetre; stars: formation; stars: magnetic fields |
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| Abstract | Submillimetre imaging polarimetry is one of the most powerful tools at present for studying magnetic fields in star-forming regions, and the only way to gain significant information on the structure of these fields. We present analysis of the largest sample (to date) of both high- and low-mass star-forming regions observed using this technique. A variety of magnetic field morphologies are observed, with no single field morphology favoured. Both the continuum emission morphologies and the field morphologies are generally more complex for the high-mass sample than the low-mass sample. The large scale magnetic field (observed with the JCMT; 14" resolution) of NGC1333 IRAS2 is interpreted to be weak (compared to the energetic contributions due to turbulence) from the random field pattern observed. On smaller scales (observed with the BIMA array; 3" resolution) the field is observed to be almost radial, consistent with the polarisation nulls in the JCMT data – suggesting that on smaller scales, the field may be more important to the star formation process. An analysis of the magnetic field direction and the jet/outflow axis is also discussed. Cumulative distribution functions of the difference between the mean position angle of the magnetic field vectors and the jet/outflow axis reveal no correlation. However, visual inspection of the maps reveal alignment of the magnetic field and jet/outflow axis in 7 out of 15 high-mass regions and 3 out of 8 low-mass regions. |
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| Publication date | 2007-05-01 |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 13053028 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 08184d07-b729-4849-a2ff-44fb3d041df0 |
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| Record created | 2009-11-25 |
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| Record modified | 2020-05-10 |
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