  Within the framework of scenarios of nonhomogeneous baryosynthesis, the
formation of macroscopic antimatter domains is predicted in a matter-antimatter
asymmetrical Universe. The properties of antimatter within the domains are
outlined; the matter-antimatter boundary interactions are studied. The
correlation functions for two astrophysical objects are calculated. The
theoretical expression in the limiting process of the two-points correlation
function of an astrophysical object and an antibaryon is derived.
