An Atlas of Monte Carlo Models of Dust Extinction in Galaxies for Cosmological Applications

We present an extensive study of the radiative transfer in dusty galaxiesbased on Monte Carlo simulations. The main output of these simulations are theattenuation curves ${\cal A}_\lambda$ (i.e. the ratio between the observed,dust extinguished, total intensity to the intrinsic unextinguished one of thegalaxy as a function of wavelength). We have explored the dependence of ${\calA}_\lambda$ on a conspicuous set of quantities (Hubble type, inclination, dustoptical thickness, dust distribution and extinction properties) for a largewavelength interval, ranging from 1250\AA to the K band, thus finally providinga comprehensive atlas of dust extinction in galaxies, which is electronicallyavailable. This study is particularly suitable for inclusion into galaxyformation evolution models and to directly interpret observational data on highredshift galaxies.Comment: 29 pages, aasms4.sty, LaTeX, 5 figures. ApJSS, accepte