The Magnetic Field Structure of the LMC 2 Supershell: NGC 2100

Abstract

We present U,B,V,R,I imaging polarimetry of NGC 2100 and its surrounding environment, which comprise a part of the LMC 2 supershell. The morphology of the observed position angle distribution provides a tracer of the projected magnetic field in this environment. Our polarization maps detail regions exhibiting similarly aligned polarization position angles, as well as more complex position angle patterns. We observe regions of coherent fields on spatial scales of 42 x 24 pc to 104 x 83 pc, and infer projected field strengths of $\sim 14-30\mu$G. We propose that the superposition of global outflows from the LMC 2 environment, as well as outflows created within NGC 2100, produce the unique field geometry in the region.

12 pages, accepted by ApJ, emulateapj5 format, full-resolution figures available upon request ([email protected])

References in corpus (1)

• Polarization of absorption lines as a diagnostics of circumstellar, interstellar and intergalactic magnetic fields: Fine structure atoms

Cited by in corpus (4)

• The Role of Evolutionary Age and Metallicity in the Formation of Classical Be Circumstellar Disks II. Assessing the Evolutionary Nature of Candidate Disk Systems
• Understanding the links among magnetic fields, filament, the bipolar bubble, and star formation in RCW57A using NIR polarimetry
• A New Optical Polarization Catalog for the Small Magellanic Cloud: The Magnetic Field Structure
• Unveiling polarized emission from interstellar dust of the Large Magellanic Cloud with Planck