2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/120133We investigate the newtonian stationary accretion of a polytropic perfect fluid onto a central body with a hard surface. The selfgravitation of the fluid and its interaction with luminosity is included in the model. We find that for a given luminosity, asymptotic mass and temperature of the fluid there exist two solutions with different cores.Submitted to MG11 conference proceedingsAstrophysicstext