16,716 research outputs found
Two-charge rotating black holes in four-dimensional gauged supergravity
We obtain an asymptotically AdS, non-extremal, electrically charged and
rotating black hole solution of 4-dimensional U(1)^4 gauged supergravity with 2
non-zero and independent U(1) charges. The thermodynamical quantities are
computed. We find BPS solutions that are nakedly singular. The solution is
generalized to include a NUT parameter and dyonic gauge fields. The string
frame metric has a rank-2 Killing-Stackel tensor and has completely integrable
geodesic motion, and the massless Klein-Gordon equation separates for the
Einstein frame metric.Comment: 15 pages; v2, v3: minor change
Dyonic AdS black holes in maximal gauged supergravity
We present two new classes of dyonic anti-de Sitter black hole solutions of
4-dimensional maximal N=8, SO(8) gauged supergravity. They are: (1) static
black holes of N=2, U(1)^4 gauged supergravity with 4 electric and 4 magnetic
charges, with spherical, planar or hyperbolic horizons; and (2) rotating black
holes of N=2, U(1)^2 gauged supergravity with 2 electric and 2 magnetic
charges. We study their thermodynamics, and point out that the formulation of a
consistent thermodynamics for dyonic anti-de Sitter black holes is dependent on
the existence of boundary conditions for the gauge fields. We identify several
distinct classes of boundary conditions for gauge fields in U(1)^4
supergravity. We study a general family of metrics containing the rotating
solutions, and find Killing-Yano tensors with torsion in two conformal frames,
which underlie separability.Comment: 23 pages, 3 Mathematica files of solutions; v2: minor change
Single-charge rotating black holes in four-dimensional gauged supergravity
We consider four-dimensional U(1)^4 gauged supergravity, and obtain
asymptotically AdS_4, non-extremal, charged, rotating black holes with one
non-zero U(1) charge. The thermodynamic quantities are computed. We obtain a
generalization that includes a NUT parameter. The general solution has a
discrete symmetry involving inversion of the rotation parameter, and has a
string frame metric that admits a rank-2 Killing-Stackel tensor.Comment: 9 page
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