  Boson stars are stationary soliton-like gravitational configurations
supported by a complex scalar field charged under the global $U(1)$ symmetry.
We discuss properties of boson stars in type IIB supergravity approximation to
string theory. A notable difference is that in supergravity models the global
symmetry of the complex scalar field is gauged. We focus on global
asymptotically $AdS_5$ space-time, where the boson stars are expected to
represent stable low-energy non-thermal excitations in holographically dual
quiver conformal gauge theory.
