We study a stationary "black" brane in M/superstring theory. Assuming
BPS-type relations between the first-order derivatives of metric functions, we
present general stationary black brane solutions with a traveling wave for the
Einstein equations in D-dimensions. The solutions are given by a few
independent harmonic equations (and plus the Poisson equation). General
solutions are constructed by superposition of a complete set of those harmonic
functions. Using the hyperspherical coordinate system, we explicitly give the
solutions in 11-dimensional M theory for the case with M2-M5 intersecting
branes and a traveling wave. Compactifying these solutions into five
dimensions, we show that these solutions include the BMPV black hole and the
Brinkmann wave solution. We also find new solutions similar to the Brinkmann
wave. We prove that the solutions preserve the 1/8 supersymmetry if the
gravi-electromagnetic field F, which is a rotational part of gravity, is
self-dual. We also discuss non-spherical "black" objects (e.g., a ring topology
and an elliptical shape) by use of other curvilinear coordinates.Comment: 28 pages, no figure
