Linear and Circular Polarization in Diffuse Interstellar Bands G.A. Galazutdinov KASI, Daejeon Bohyunsan Optical Astronomy Observatory · 1.8-m telescope · Fiber feed Echelle Spectrograph 3,500 - 10, 000 A, R= 35, 000 - 90, 000 Polarization Polarimetry of DIBs (1972 ­ 2007) Sp B1Iabe B9Ia A0Iab B3V B7Ia B1.5I B2IV B3Ia E(B-V) 0.5 0.4 0.55 0.25 1.25 1.2 0.55 ...