Tahani, M;
Bastien, P;
Furuya, RS;
Pattle, K;
Johnstone, D;
Arzoumanian, D;
Doi, Y;
... Robitaille, JF; + view all
(2023)
JCMT BISTRO Observations: Magnetic Field Morphology of Bubbles Associated with NGC 6334.
The Astrophysical Journal
, 944
(2)
pp. 139-150.
10.3847/1538-4357/acac81.
Preview |
Text
Tahani_2023_ApJ_944_139.pdf - Published Version Download (3MB) | Preview |
Abstract
We study the Hii regions associated with the NGC 6334 molecular cloud observed in the submillimeter and taken as part of the B-fields In STar-forming Region Observations Survey. In particular, we investigate the polarization patterns and magnetic field morphologies associated with these Hii regions. Through polarization pattern and pressure calculation analyses, several of these bubbles indicate that the gas and magnetic field lines have been pushed away from the bubble, toward an almost tangential (to the bubble) magnetic field morphology. In the densest part of NGC 6334, where the magnetic field morphology is similar to an hourglass, the polarization observations do not exhibit observable impact from Hii regions. We detect two nested radial polarization patterns in a bubble to the south of NGC 6334 that correspond to the previously observed bipolar structure in this bubble. Finally, using the results of this study, we present steps (incorporating computer vision; circular Hough transform) that can be used in future studies to identify bubbles that have physically impacted magnetic field lines.
| Type: | Article |
|---|---|
| Title: | JCMT BISTRO Observations: Magnetic Field Morphology of Bubbles Associated with NGC 6334 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3847/1538-4357/acac81 |
| Publisher version: | https://doi.org/10.3847/1538-4357/acac81 |
| Language: | English |
| Additional information: | © 2023. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
| Keywords: | H II regions; Interstellar magnetic fields; Star formation; Molecular clouds; Dust continuum emission |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10166153 |
Archive Staff Only
 |
View Item |
