Topics covered in this lecture: interstellar dust, extinction and reddening, E(B-V), R_V to characterize dust extinction and reddening, dust alignment with magnetic fields and polarization of background starlight, dust scattering and absorption, a/lambda dependence of scattering and absorption cross-section versus geometric cross-section, Rayleigh and Mie scattering, depletion of refractory elements from gas phase to dust particles, size distribution of dust grains
Editing Credits: Deep Bhowmik, IISc
