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Utilizing James Clark Maxwell Telescope (JCMT) 850 $\mu$m SCUPOL dustpolarization data, we investigate the configuration of the magnetic ($B$) fieldin the circumnuclear disk (CND) of the Galactic Center (GC). The SCUPOL datashow a highly improved polarization coverage and resolution compared to earlier100 $\mu$m observations. The 850 $\mu$m data have a resolution and coveragesimilar to previous 350 $\mu$m polarimetry data. However, with a propersampling on a 10$"$ grid, we find the 850 $\mu$m data trace the morphologicalstructures of the CND substantially better. Furthermore, because the 850 $\mu$mtrace the field deeper into the material near Sgr A*, they represent thehighest resolution submillimeter probe to date of the CND magnetic field. Theobserved $B$-field morphology is well described by a self-similar axisymmetricdisk model where the radial infall velocity is one quarter of the rotationalvelocity. A detailed comparison with higher-resolution interferometric mapsfrom the Submillimeter Array further reveals that the $B$-field aligns with theneutral gas streamers connecting to the CND. Moreover, the innermost observed$B$-field structure also appears to trace and align with the mini-spirallocated inside the CND. This suggests that there is one underlying $B$-fieldstructure that is connecting the CND with its streamers and the innermini-spiral. An estimate of $\beta_{\rm Plasma} \lesssim 1-$based on the globalB-field morphology that constrains the azimuthal-to-vertical field strengthratio of around 40 combined with a measurement of the azimuthalvelocity--indicates that the B-field appears dynamically significant towardsthe CND and also onwards to the inner mini-spiral.

A Magnetic Field Connecting the Galactic Center Circumnuclear Disk with Streamers and Mini-spiral -Implications from 850 $\mu$m Polarization Data