Far-Infrared and Submillimeter Polarization Spectrum of the OMC-1 Region

We compile the most complete far-infrared multiwavelength polarization spectrum to date of the high-mass star-forming region, OMC-1, using data from the High-resolution Airborne Wideband Camera+ (HAWC+) polarimeter on the NASA / German Aerospace Center (DLR) Stratospheric Observatory for Infrared Astronomy (SOFIA). These observations are combined with ground-based polarimetry data at 350- and 450-micron from the SHARP instrument on the now-decommissioned Caltech Submillimeter Observatory (CSO) and 850-micron data from the POL-2 instrument on the James Clerk Maxwell Telescope (JCMT). Our analysis finds a nearly flat polarization spectrum in the far-infrared, characteristic of a single polarized dust species. We find evidence for a rising polarization spectrum in the high column density molecular gas and a flat spectrum in the low column density HII region. We also use previously published spectral energy distribution parameters of this region to determine possible correlations with polarization spectral shape.