论文标题
大量标量张量重力中的中子星的超长寿命的准恒星模式
Ultra long lived quasinormal modes of neutron stars in massive scalar-tensor gravity
论文作者
论文摘要
组成由中子星排出的重力波的响声阶段的频率和特征时间的光谱带有有关物质含量（状态方程）和重力理论的信息。通常，经过修改的重力理论会引入其他自由度/场（例如标量），从而导致构成环down频谱的新模式家族。简单但有前途的候选者是标量调整理论，它有效地引入了一个额外的大规模标量场（即超光玻色子），该场与重力无关，从而导致标量的中子星星。在这里，我们介绍了此类理论中完整的响应频谱的第一个计算。我们表明，具有超光玻色子的中子恒星的环谱光谱与一般相对论中的光谱更为丰富和根本不同，并且具有传播的超长寿命模式。
The spectrum of frequencies and characteristic times that compose the ringdown phase of gravitational waves emitted by neutron stars carries information about the matter content (the equation of state) and the underlying theory of gravity. Typically, modified theories of gravity introduce additional degrees of freedom/fields, such as scalars, which result in new families of modes composing the ringdown spectrum. Simple but physically promising candidates are scalar-tensor theories, which effectively introduce an additional massive scalar field (i.e. an ultra-light boson) that couples non-minimally to gravity, resulting in scalarized neutron stars. Here we present the first calculation of the full ringdown spectrum in such theories. We show that the ringdown spectrum of neutron stars with ultra-light bosons is much richer and fundamentally different from the spectrum in general relativity and that it possesses propagating ultra long lived modes.
