论文标题
计算有效的模型，用于前进二进制黑洞的主要和次级谐波模式
Computationally efficient models for the dominant and sub-dominant harmonic modes of precessing binary black holes
论文作者
论文摘要
我们提出了Imrphenomxphm，这是一种由准圆形预插入二元黑洞发出的重力波信号的现象学频域模型，该模型在预训练框架中掺入了超出主要四极管以外的多物。该模型是基于共同型框架中对齐的旋转波形模式与惯性框架中的预启动波形模式之间的近似地图的imrphenomxhm（García-Quirós2020）的进攻扩展，通常称为“扭曲”不成功的波形。 imrphenomxphm包括imrphenomxp作为一种特殊情况，在共同符号框架中限制了主要的四极杆贡献。我们实施了两个基于单旋PN近似的替代映射，该映射（如Imrphenompv2中使用（Hannam 2013），另一个基于双旋转MSA方法（Chatziioannou 2017）。我们在描述二进制文件的描述和构建模型中做出的所有选择中都详细讨论了对惯例的详细讨论。通过将（C.garcía-Quirós2020）的插值技术扩展到欧拉角，进一步降低了\ phxphm的计算成本。 Imrphenomx家族的准确性，速度，鲁棒性和模块化将使这些模型在当前的时代大大增加和可检测到的事件多样性的时代，以实现引力波天文学的生产性工具。
We present IMRPhenomXPHM, a phenomenological frequency-domain model for the gravitational-wave signal emitted by quasi-circular precessing binary black holes, which incorporates multipoles beyond the dominant quadrupole in the precessing frame. The model is a precessing extension of IMRPhenomXHM (García-Quirós 2020), based on approximate maps between aligned-spin waveform modes in the co-precessing frame and precessing waveform modes in the inertial frame, which is commonly referred to as "twisting up" the non-precessing waveforms. IMRPhenomXPHM includes IMRPhenomXP as a special case, the restriction to the dominant quadrupole contribution in the co-precessing frame. We implement two alternative mappings, one based on a single-spin PN approximation, as used in IMRPhenomPv2 (Hannam 2013), and one based on the double-spin MSA approach (Chatziioannou 2017). We include a detailed discussion of conventions used in the description of precessing binaries and of all choices made in constructing the model. The computational cost of \phXPHM is further reduced by extending the interpolation technique of (C. García-Quirós 2020) to the Euler angles. The accuracy, speed, robustness and modularity of the IMRPhenomX family will make these models productive tools for gravitational wave astronomy in the current era of greatly increased number and diversity of detected events.
