Elliptical and purely NS superstrata

A bstract We analyze the BPS equations in “superstratum sector” of three-dimensional gauged supergravity. obtain multi-parameter supersymmetric solutions that include elliptical deformations supertubes underlie standard superstrata. uplift to corresponding six-dimensional geometries. This yields new families elliptically-deformed, ambi-bolar hyper-Kähler geometries four dimensions with a non-tri-holomorphic U(1) isometry. also find family scaling superstrata whose S-dual lives entirely within NS-sector supergravity, and will thus be more amenable exact analysis using string probes. In all these superstrata, including ones, if momentum charge is non-zero we ellipse stays away from degeneration locus which becomes flat.