  The Proca wave equation describes a classical massive spin 1 particle. We
analyze the gravitational interaction of this vector field. In particular, the
spherically symmetric solutions of the Einstein-Proca coupled system are
obtained numerically. Although at infinity the metric field approaches the
usual Schwarzschild (Reissner-Nordstr\"om) limit, we demonstrate the absence of
black hole type configurations.

General Relativity and Quantum Cosmology