标题： 玻色子星的引力记忆 显示英文标题

标题： Gravitational memory of boson stars

摘要： “引力记忆”是指在具有随时间变化的引力“常数”的宇宙学中，黑洞等天体可能保留其诞生时环境条件的一种可能性。我们在另一种物理场景中研究了这一现象，其中所考虑的天体是玻色星。我们构建了标量-张量引力理论中的玻色星解，并研究了它们对引力强度渐近值的依赖性。随后，我们讨论了几种可能的物理解释，包括纯粹的引力恒星演化概念。 显示英文摘要

摘要： `Gravitational memory' refers to the possibility that, in cosmologies with a time-varying gravitational `constant', objects such as black holes may retain a memory of conditions at the time of their birth. We consider this phenomenon in a different physical scenario, where the objects under consideration are boson stars. We construct boson star solutions in scalar-tensor gravity theories, and consider their dependence on the asymptotic value of the gravitational strength. We then discuss several possible physical interpretations, including the concept of pure gravitational stellar evolution.