  Heavy-neutrino (or neutralino) stars are studied using the general
relativistic equations of hydrostatic equilibrium and the relativistic equation
of state for degenerate fermionic matter. The Tolman-Oppenheimer-Volkoff
equations are then generalized to include a system of degenerate neutrino and
neutralino matter that is gravitationally coupled. The properties and
implications of such an interacting astrophysical system are discussed in
detail.
