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Polarimetric results obtained toward the L1172/1174 cloud complex. (a) R-band (yellow) and Planck (white) polarization vectors (90° rotated) overlaid on the Herschel dust column density map of L1172/1174 obtained from André et al. (2010). The contours are drawn at 9 × 1020 cm−2 and 15 × 1020 cm−2 levels to reveal the cloud structure. HD 200775 is marked with a red star symbol. The dashed red circle represents the head region of the cloud complex. The green colored plus symbols show the locations of L1173 (south), L1172 (middle), and L1174 (north). The lengths and the orientations of the vectors correspondto the degree of polarization and the position angles measured with respect to the Galactic north increasing eastward, respectively. A polarization vector (red) corresponding to 2% and oriented at 90° is shown for reference. (b) Plot of degree of polarization versus position angle values for the 249 sources observed by us in the R band and Planck. The R-band polarization vectors from the head and the tail regions are shown using solid red and blue circles, respectively. Similarly, for Planck, the measurements from the head and the tail regions are shown using solid orange and cyan circles, respectively. The Planck polarization measurements from the ICM are shown with solid gray circles. (c) Histograms of the θR belonging tothe head and the tail regions of L1172/1174 obtained from our R-band polarization measurements with the bin size of ~9°.

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