Abstract

We present the results obtained through new optical broad-band (BV(RI )c) polarimetric observations carried out towards NGC 1893. In this study we found at least two foreground dust layers present towards NGC 1893. One at 170 pc and another at 350 pc. Second dust layer was found to be mainly responsible for the observed polarization towards the cluster. The polarization efficiency toward NGC 1893 is found to be higher than mean value for the general diffuse interstellar medium, thereby indicating that the dust grains are aligned well with respect to the Galactic magnetic field. The weighted mean in the λ_max (0.55 ± 0.01 μm), and the estimated R_v , the total-to-selective extinction (3.08 ± 0.05) are quite similar to the values corresponding to the general interstellar medium (ISM).