  We study Robinson-Trautman spacetimes in the presence of an aligned p-form
Maxwell field and an arbitrary cosmological constant in n>=4 dimensions. As it
turns out, the character of these exact solutions depends significantly on the
(relative) value of n and p. In odd dimensions the solutions reduce to static
black holes dressed by an electric and a magnetic field and whose horizon is an
Einstein space (further constrained by the Einstein-Maxwell equations) -- both
the Weyl and Maxwell type are D. Even dimensions, however, open up more
possibilities. In particular, when 2p=n there exist non-static solutions
describing black holes acquiring (or losing) mass by receiving (or emitting)
electromagnetic radiation. In this case the Weyl type is II (D) and the Maxwell
type can be II (D) or N. Conditions under which the Maxwell field is self-dual
(for odd p) are also discussed, and a few explicit examples presented. Finally,
the case p=1 is special in all dimensions and leads to static metrics with a
non-Einstein transverse space.
