标题： 关于为标量-张量理论设定新约束的可能性 显示英文标题

标题： On the possibility of setting a new constraint to scalar-tensor theories

摘要： 标量-张量理论（STTs）是广义相对论（GR）的一种广泛研究的替代理论，其中引力具有额外的标量自由度。尽管受到太阳系和脉冲星计时实验的严重限制，但仍存在大量与当前所有观测一致的STTs。在本文中，我们研究了基于这样一个事实的可能性：这些理论中高度致密中子星的稳定性特性可能与GR中的特性有根本的不同，从而探测STTs参数空间中尚未受到约束的区域。 显示英文摘要

摘要： Scalar-tensor theories (STTs) are a widely studied alternative to General Relativity (GR) in which gravity is endowed with an additional scalar degree of freedom. Although severely constrained by solar system and pulsar timing experiments, there remains a large set of STTs which are consistent with all present day observations. In this paper, we investigate the possibility of probing a yet unconstrained region of the parameter space of STTs based on the fact that stability properties of highly compact neutron stars in these theories may radically differ from those in GR.