Near the horizon of 5D black rings
Abstract
For the five dimensional Script N = 2 black rings, we study the supersymmetry enhancement and identify the global supergroup of the near horizon geometry. We show that the global part of the supergroup is OSp(4*|2) × U(1) which is similar to the small black string. We show that results obtained by applying the entropy function formalism, the c-extremization approach and the Brown-Henneaux method to the black ring solution are in agreement with the microscopic entropy calculation.
- Publication:
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Journal of High Energy Physics
- Pub Date:
- March 2009
- DOI:
- 10.1088/1126-6708/2009/03/035
- arXiv:
- arXiv:0810.2620
- Bibcode:
- 2009JHEP...03..035L
- Keywords:
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- High Energy Physics - Theory
- E-Print:
- 26 pages, version to appear in JHEP, the near horizon superalgebra is corrected, discussion on small black ring is discarded, Brown-Henneaux approach to large black ring is added