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Paper: The Galactic Magnetic Field Toward 12 Open Clusters
Volume: 449, Astronomical Polarimetry 2008: Science from Small to Large Telescopes
Page: 240
Authors: Pinnick, A.; Clemens, D.
Abstract: As groups of stars at known distances without intrinsic polarizations, open clusters are expected to serve as excellent probes of the 3D distribution of the Galactic magnetic field. We present a preliminary study of twelve optically-selected open clusters in the second and third Galactic quadrants as a pathfinder for a larger study in the GPIPS (Galactic Plane Infrared Polarization Survey) first quadrant region. H-band (1.6 μm) linear polarimetry data were acquired using the Mimir near-infrared instrument on the 1.8 m Perkins Telescope located outside Flagstaff, Arizona. The clusters were selected to represent the large range in distance (850 to 5 800 pc) and reddening [E(B–V) = 0.1 –0.7 mag] expected for lines of sight in the GPIPS region. We present polarimetric, and hence magnetic field, results toward individual clusters as well as results for the open cluster sample in its entirety.
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