Two Schwarzschild-like black holes balanced by their scalar hair

被引:4
|
作者
Herdeiro, Carlos A. R. [1 ]
Radu, Eugen
机构
[1] Univ Aveiro, Dept Matemat, Campus Santiago, P-3810183 Aveiro, Portugal
基金
欧盟地平线“2020”;
关键词
GENERAL-RELATIVITY; EQUATIONS; SOLITONS; RINGS;
D O I
10.1103/PhysRevD.107.064044
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We show that, unlike vacuum general relativity, Einstein-scalar theories allow balanced static, neutral, asymptotically flat, double-black hole solutions, for scalar field models minimally coupled to gravity, with appropriate self-interactions. These are scalar hairy versions of the double-Schwarzschild (or Bach-Weyl) solution, but regular on and outside the two (topologically spherical) horizons. The balancing repulsive force is provided by the scalar field. An explicit illustration is presented, using a Weyl-type construction adapted to numerical solutions, requiring no partial linearization, or integrability structure, of the Einstein -scalar equations. Fixing the couplings of the model, the balanced configurations form a one-parameter family of solutions, labeled by the proper distance between the black holes.
引用
收藏
页数:17
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