Abstract In the present paper we study the static and spherically symmetric dilaton-axion black hole in the testing ground of the Solar system. We constrain the parameters of the string motivated dilaton-axion form of the classical tests of general relativity, viz., the perihelion precession of the planet Mercury and the deflection of light by the Sun. In this case we have two free parameters: the dilaton strength and the point of curvature singularity of black hole. We obtain the permissible range of these two parameters from theoretical analysis based on the model and later compare them with the observations.

中文翻译：

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太阳系测试下的扩张-轴子黑洞

摘要 本文研究了太阳系试验场中静态和球对称的膨胀轴-轴黑洞。我们限制了广义相对论经典测试的弦激励膨胀轴形式的参数，即水星的近日点进动和太阳对光的偏转。在这种情况下，我们有两个自由参数：膨胀强度和黑洞曲率奇点。我们根据模型从理论分析中得到这两个参数的允许范围，然后与观测值进行比较。