dustₑxtinction: Interstellar Dust Extinction Models

Extinction describes the effects of dust on observations of a single star due to the dust along the line-of-sight to the star removing flux by absorbing photons and scattering photons out of the line-of-sight.The wavelength dependence of dust extinction (also known as extinction curves) provides fundamental information about the size, composition, and shape of interstellar dust grains.In general, models giving the wavelength dependence of extinction are used to model or correct the effects of dust on observations.This Python Astropy-affiliated package (Astropy Collaboration et al., 2022) provides many of the published extinction models in one place with a consistent interface.