  We solve, and provide analytical expressions, for current-free magnetic
configurations in the context of initial setups of 3-dimensional simulations of
astrophysical jets involving an accretion disk corona in hydrostatic balance
around a central object. These configurations which thread through the
accretion disk and its corona preserve the initial hydrostatic state. This work
sets stage for future 3-dimensional jet simulations (including disk rotation
and mass-load) where launching, acceleration and collimation mechanisms can be
investigated.
