  In this work we investigate localized and extended objects for gravitating,
self-interacting phantom fields. The phantom fields come from two scalar fields
with a "wrong sign" (negative) kinetic energy term in the Lagrangian. This
study covers several solutions supported by these phantom fields: phantom
balls, traversable wormholes, phantom cosmic strings, and "phantom" domain
walls. These four systems are solved numerically and we try to draw out
general, interesting features in each case.
