论文标题

对异国情调物体的建模和检测谐振潮

Modeling and detecting resonant tides of exotic compact objects

论文作者

Fransen, Kwinten, Koekoek, Gideon, Tielemans, Rob, Vercnocke, Bert

论文摘要

一般相对论中黑洞的事件范围吸收了所有插入辐射。对相反的任何观察结果都会立即挑战真空Kerr几何形状描述天体物理黑洞的期望。如果推定的黑洞确实反映了胶水辐射的一部分,则其准模式结构会发生巨大变化。可以引入低频模式,这些模式在二进制系统的灵感中会引起共鸣。我们研究重力波信号的产生相移。在中子星结果的基础上,我们获得了相移的模型无关表达式,该表达仅取决于紧凑型对象的准模式和爱情数字。我们发现,在高信号到噪声事件中,爱因斯坦望远镜可能会发现相移可能是不对称的二进制文件($ \ sim 10^3 $),但到目前为止,无法探索Planck量表。

The event horizon of a black hole in general relativity absorbs all infalling radiation. Any observation of the contrary would immediately challenge the expectation that astrophysical black holes are described by the vacuum Kerr geometry. If a putative black hole does reflect part of the ingoing radiation, its quasinormal mode structure is drastically altered. Low frequency modes can be introduced that are resonantly excited during the inspiral of a binary system. We study the resulting phase shift of the gravitational wave signal. Building on neutron star results, we obtain a model-independent expression for the phase shift that depends only on quasinormal modes and Love numbers of the compact object. We find that the phase shift might be detectable with Einstein Telescope for asymmetric binaries in high signal-to-noise events ($\sim 10^3$), but by far cannot explore the Planck scale.

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