The Spectroscopic Variability of GRB 021004

We present mid-infrared imaging polarization vector diagrams of the young planetary nebula NGC 7027. The observations were taken with the University of Denverʹs Ten and Twenty (mu)m Camera at the Wyoming Infrared Observatory. Individual wave plate position images have been deconvolved to remove the instrument point-spread function. The deconvolved 9-13 (mu)m intensity images, in 1 (mu)m wide bandpasses, show a bright ellipsoidal double-peaked core surrounded by a region of fainter emission, consistent with recent continuum images in the near-infrared. The vector diagrams show significant changes in polarization position angle with wavelength, suggesting scattering from large grains.