Moving-mesh radiation-hydrodynamic simulations of wind-reprocessed transients

Motivated by recent theoretical work on tidal disruption events and other peculiar transients, we present moving-mesh radiation-hydrodynamic simulations of radiative luminosity emitted a central source being reprocessed wind-like outflow. We couple the hydrodynamic code JET with our newly-developed radiation module based mixed-frame grey flux-limited diffusion implicit timestep update. This allows us to study self-consistent multi-dimensional evolution over more than ten orders magnitude in both space time single run. simulate an optically-thick spherical wind constant or evolving mass-loss rate, which is irradiated isotropic angularly-dependent source. Our spherically-symmetric confirm previous analytic results identifying different stages reprocessing: trapped wind, diffusing out through reaching maximum attenuation. find that confining cone moderate opening angles decrease up one order early flux along sightlines oriented away from direction injection but becomes roughly after lateral ejecta. discuss further applications guidelines for use novel radiation-hydrodynamics tool context transient modelling.