Non-BPS Black Rings and Black Holes in Taub-NUT
Iosif Bena, Gianguido Dall'Agata, Stefano Giusto, Clement Ruef and, Nicholas P. Warner

TL;DR
This paper constructs explicit solutions for non-supersymmetric extremal black rings and black holes in Taub-NUT space, advancing understanding of non-BPS multi-center gravitational configurations.
Contribution
It provides the first explicit solutions for non-BPS extremal black rings in Taub-NUT and the seed solutions for general extremal non-BPS black holes in four dimensions.
Findings
Explicit non-BPS black ring solutions in Taub-NUT
Seed solutions for extremal non-BPS black holes
Multi-center configurations including black hole and black ring
Abstract
We solve the recently-proposed equations describing non-BPS extremal multi-center configurations, and construct explicit solutions describing non-supersymmetric extremal black rings in Taub-NUT, as well as the seed solution for the most general extremal non-BPS under-rotating black hole in four dimensions. We also find solutions that contain both a black hole and a black ring, which descend to four-dimensional extremal non-BPS two-center black holes with generic charges.
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