论文标题
在与第三代重力波探测器合并的中子二进制物中，Rossby模式的谐振潮气激发
Detecting resonant tidal excitations of Rossby modes in coalescing neutron-star binaries with third-generation gravitational-wave detectors
论文作者
论文摘要
旋转中子恒星的Rossby模式（R-Modes）可以通过聚集的二进制系统中的引力磁力激发。 Flanagan和Racine先前的研究[Phys。 Rev. D 75，044001（2007）]表明，这种动力学潮汐（DT）可以在重力波形上诱导0.1 RAD的相移，这是通过第三代（3G）检测器检测到的。在本文中，我们研究了该DT对3G探测器时代中中子星参数的影响。我们在不同状态方程所预测的中子星特性之间结合了两个普遍关系：（i）惯性动量与（F-Mode）潮汐爱数之间的众所周知的I-Love关系，以及（ii）R-Mode重叠和潮汐爱情之间的关系，这是本文中新探索的。我们发现R-Mode DT将提供有关缓慢旋转中子星的丰富信息，其频率范围为10至100 Hz。对于二进制中子星系（宇宙探险家中1500左右的信噪比），在最佳情况下，每个中子星的自旋频率可以限制为6％（分数误差）。单个中子星的爱情数量之间的堕落大大减少了：在最佳情况下，每个爱人的爱数都可以约束至20％左右，而对称和反对称的爱情的分数错误都可以减少300个因素。此外，DT还允许我们允许我们测量旋转倾斜度的位置，从而在旋转的倾斜度上，并在0.09的范围内，以及最佳的速度，并占据了0.09 rad and to to 0.09 rad and to to 0.09。超新星爆炸模型。除了参数估计外，我们还开发了一种半分析方法，该方法准确地描述了由于DT引起的二元演化的详细特征。
Rossby modes (r-modes) of rotating neutron stars can be excited by the gravitomagnetic forces in coalescing binary systems. The previous study by Flanagan and Racine [Phys. Rev. D 75, 044001 (2007)] showed that this kind of dynamical tide (DT) can induce phase shifts of 0.1 rad on gravitational waveforms, which is detectable by third-generation (3G) detectors. In this paper, we study the impact of this DT on measuring neutron-star parameters in the era of 3G detectors. We incorporate two universal relations among neutron star properties predicted by different equations of state: (i) the well-known I-Love relation between momentum of inertia and (f-mode) tidal Love number, and (ii) a relation between the r-mode overlap and tidal Love number, which is newly explored in this paper. We find that r-mode DT will provide rich information about slowly rotating neutron stars with frequency ranging from 10 to 100 Hz. For a binary neutron star system (with a signal-to-noise ratio around 1500 in the Cosmic Explorer), the spin frequency of each individual neutron star can be constrained to 6% (fractional error) in the best-case scenario. The degeneracy between the Love numbers of individual neutron stars is dramatically reduced: each individual Love number can be constrained to around 20% in the best case, while the fractional error for both symmetric and anti-symmetric Love numbers are reduced by factors of around 300. Furthermore, DT also allows us to measure the spin inclination angles of the neutron stars, to 0.09 rad in the best case, and thus place constraints on NS natal kicks and supernova explosion models. Besides parameter estimation, we have also developed a semi-analytic method that accurately describes detailed features of the binary evolution that arise due to the DT.
