标题： Horndeski理论中的黑洞和恒星 显示英文标题

标题： Black holes and stars in Horndeski theory

摘要： 我们回顾了Horndeski理论中的黑洞和恒星解。对于非平移对称的理论，黑洞涉及高维Lovelock解的Kaluza-Klein约化。另一方面，对于Horndeski及其超越Horndeski的平移对称理论，黑洞包括两类解：一类是在作用量层面包含与Gauss-Bonnet项线性耦合的解，另一类是在galileon场中具有时间依赖性的解。我们详细分析了Horndeski理论的一个特定子类中的后一类解，讨论了静态且球对称时空的一般解。然后我们讨论了稳定性问题、缓慢旋转的解以及与物质耦合的黑洞。后一种情况涉及一个共形耦合的标量场和电磁场以及由此获得的主要“毛发”黑洞。我们回顾并讨论了关于Horndeski理论中中子星的最新结果。 显示英文摘要

摘要： We review black hole and star solutions for Horndeski theory. For non-shift symmetric theories, black holes involve a Kaluza-Klein reduction of higher dimensional Lovelock solutions. On the other hand, for shift symmetric theories of Horndeski and beyond Horndeski, black holes involve two classes of solutions: those that include, at the level of the action, a linear coupling to the Gauss-Bonnet term and those that involve time dependence in the galileon field. We analyze the latter class in detail for a specific subclass of Horndeski theory, discussing the general solution of a static and spherically symmetric spacetime. We then discuss stability issues, slowly rotating solutions as well as black holes coupled to matter. The latter case involves a conformally coupled scalar field as well as an electromagnetic field and the (primary) hair black holes thus obtained. We review and discuss the recent results on neutron stars in Horndeski theories.