期刊
PHYSICS LETTERS B
卷 820, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2021.136506
关键词
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资金
- Conicyt-Beca Chile [74200076]
- MIUR-PRIN contract [2017CC72MK003]
- INFN
An exact and analytical solution of four dimensional vacuum General Relativity representing a system of two static black holes at equilibrium is presented. The metric is completely regular outside the event horizons, both from curvature and conical singularities. The balance between the two Schwarzschild sources is granted by an external gravitational field, without the need of extra matter fields besides gravity, nor strings or struts.
An exact and analytical solution of four dimensional vacuum General Relativity representing a system of two static black holes at equilibrium is presented. The metric is completely regular outside the event horizons, both from curvature and conical singularities. The balance between the two Schwarzschild sources is granted by an external gravitational field, without the need of extra matter fields besides gravity, nor strings or struts. The geometry of the solution is analysed. The Smarr law, the first and the second law of black hole thermodynamics are discussed. (C) 2021 The Author(s). Published by Elsevier B.V.
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