Horizons in de-Sitter Supergravity

Authors :: Grover, J.
Gutowski, J.
Source :: JHEP 1004:009,2010
Publication Year :: 2010
Abstract: We classify all pseudo-supersymmetric extremal near-horizon geometries in minimal five-dimensional de-Sitter supergravity. It is shown that the only such near-horizon geometry is the near-horizon geometry of the de-Sitter BMPV solution, and hence there are no regular extremal pseudo-supersymmetric asymptotically de-Sitter black rings.<br />Comment: 26 pages, latex. Minor typos in equations (4.16) and (6.12) corrected