Equal charge black holes and seven dimensional gauged supergravity

Understand

We present various supergravity black holes of different dimensions with some U(1) charges set equal in a simple, common form.

• Black hole solutions of seven dimensional U(1)^2 gauged supergravity with three independent angular momenta and two equal U(1) charges are obtained.
• We investigate the thermodynamics and the BPS limit of this solution, and find that there are rotating supersymmetric black holes without naked closed timelike curves.
• There are also supersymmetric topological soliton solutions without naked closed timelike curves that have a smooth geometry.