论文标题
二进制中子星星合并的Kilohertz重力波：数值 - 余地知情后模型
Kilohertz Gravitational Waves From Binary Neutron Star Mergers: Numerical-relativity Informed Postmerger Model
论文作者
论文摘要
我们提出$ {\ tt nrpmw} $，这是一种使用618个数值相对性（NR）模拟告知的中子星合并残余的重力波的分析模型。 $ {\ tt nrpmw} $是使用复杂高斯小波的组合在频域中设计的。小波的参数被校准到NR数据的状态方程（EOS）不敏感关系。 NR模拟使用21个EO（其中7个是有限的微物理模型计算的，其中3个包含夸克相变或超级自由度），并跨度总二元群体$ m \ in [2.4,3.4]〜{\ rm m m} _ \ rm m} _ \ odot $，质量$ qub to nontorces of $ q = 2 $ = 2 $ = 2 $ = 2 $ = 2 $ = 2 $ = 2 $ = 2 $ = 2 $ = 2 $ = 2 $ c = 2 $ c = 2 $ = 2 $ c = 2 $ c = 2 $ = 2 $ c = 2 $ c = 2 $ c = 2 $ = 2 $ = 2 $ c = 2 $ cognitions（（ $ {0.2} $。 EOS不敏感关系的理论不确定性使用重新校准参数纳入$ {\ tt nrpmw} $中，从而增强了模型的灵活性和准确性。 $ {\ tt nrpmw} $是nr-faith的，带有拟合因子$ {\ gtrsim} 0.9 $在独立验证集的102个模拟集中计算出来。
We present ${\tt NRPMw}$, an analytical model of gravitational-waves from neutron star merger remnants informed using 618 numerical relativity (NR) simulations. ${\tt NRPMw}$ is designed in the frequency domain using a combination of complex Gaussian wavelets. The wavelet's parameters are calibrated to equations of state (EOS) insensitive relations from NR data. The NR simulations are computed with 21 EOS (7 of which are finite-temperature microphysical models, and 3 of which contain quark phase transitions or hyperonic degrees of freedom) and span total binary masses $M\in[2.4,3.4]~{\rm M}_\odot$, mass ratios up to $q=2$, and (nonprecessing) dimensionless spins magnitudes up to ${0.2}$. The theoretical uncertainties of the EOS-insensitive relations are incorporated in ${\tt NRPMw}$ using recalibration parameters that enhance the flexibility and accuracy of the model. ${\tt NRPMw}$ is NR-faithful with fitting factors ${\gtrsim}0.9$ computed on an independent validation set of 102 simulations.
