标题： 噪声伪影对中子星并合后残留物引力波搜索的影响 显示英文标题

标题： The effect of noise artefacts on gravitational-wave searches for neutron star post-merger remnants

摘要： 从双中子星合并残余体产生的引力波有可能揭示热核状态方程的物理规律。 这些引力波信号频率较高（$\sim$kHz）且持续时间较短（$\mathcal{O}(10\,\mathrm{ms})$），由于引力波观测站中存在非平稳和非高斯噪声伪影，这会给数据分析算法带来潜在问题。 我们量化了LIGO数据中的这些噪声特征在多大程度上会影响我们对合并后引力波信号识别的信心。 我们表明，结合剔除具有非平稳异常的数据和应用Allen$\chi^2$剔除法（通常用于持续时间较长的低频引力波信号），可以有信心地检测到信噪比为$\rho\gtrsim8$的合并后信号。 我们讨论了将数据质量检查和剔除措施纳入实际合并后引力波搜索的必要性，并描述了如何将其纳入以计算实际的误报率和误弃率。 显示英文摘要

摘要： Gravitational waves from binary neutron star post-merger remnants have the potential to uncover the physics of the hot nuclear equation of state. These gravitational-wave signals are high frequency ($\sim$ kHz) and short lived ($\mathcal{O}(10\,\mathrm{ms})$), which introduces potential problems for data-analysis algorithms due to the presence of non-stationary and non-Gaussian noise artefacts in gravitational-wave observatories. We quantify the degree to which these noise features in LIGO data may affect our confidence in identifying post-merger gravitational-wave signals. We show that the combination of vetoing data with non-stationary glitches and the application of the Allen $\chi^2$ veto (usually reserved for long-lived lower-frequency gravitational-wave signals), allows one to confidently detect post-merger signals with signal-to-noise ratio $\rho\gtrsim8$. We discuss the need to incorporate the data-quality checks and vetos into realistic post-merger gravitational-wave searches, and describe how one can incorporate them to calculate realistic false-alarm and false-dismissal rates.