Smooth non-extremal D1-D5-P solutions as charged gravitational instantons

We present an alternative and more direct construction of the non-super-symmetric d1-d5-p supergravity solutions found by jejjala, madden, ross and titchener. we show that these solutions — with all three charges and both rotations turned on — can be viewed as a charged version of the myers-perry instanton. we present an inverse scattering construction of the myers-perry instanton metric in euclidean five-dimensional gravity. the angular momentum bounds in this construction turn out to be precisely the ones necessary for the smooth microstate geometries. we add charges on the myers-perry instanton using appropriate so(4, 4) hidden symmetry transformations. the full construc-tion can be viewed as an extension and simplification of a previous work by katsimpouri, kleinschmidt and virmani.