Heterotic black horizons

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27 Citations (Scopus)


We show that the supersymmetric near horizon geometry of heterotic black holes is either an AdS(3) fibration over a 7-dimensional manifold which admits a G(2) structure compatible with a connection with skew-symmetric torsion, or it is a product R-1,R-1 x S-8, where S-8 is a holonomy Spin(7) manifold, preserving 2 and 1 supersymmetries respectively. Moreover, we demonstrate that the AdS(3) class of heterotic horizons can preserve 4, 6 and 8 supersymmetries provided that the geometry of the base space is further restricted. Similarly R-1,R-1 x S-8 horizons with extended supersymmetry are products of R-1,R-1 with special holonomy manifolds. We have also found that the heterotic horizons with 8 supersymmetries are locally isometric to AdS(3) x S-3 x T-4, AdS(3) x S-3 x K-3 or R-1,R-1 x T-4 x K-3, where the radii of AdS(3) and S-3 are equal and the dilaton is constant.
Original languageEnglish
Article number011
JournalJournal of High Energy Physics
Issue number7
Publication statusPublished - 2010


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