标题： 向引力波推断中次主导谐波的常规使用迈进：使用生成X波形模型对GW190412的重新分析 显示英文标题

标题： Towards the routine use of subdominant harmonics in gravitational-wave inference: re-analysis of GW190412 with generation X waveform models

摘要： 我们用最先进的现象学波形模型重新分析引力波事件GW190412。 该事件与黑洞合并有关，由于次主导谐波的显著贡献而引人注目。 我们同时使用频域和时域波形模型。 PhenomX波形模型构成了第四代用于黑洞双星合并的频域现象学波形；它们最近被时域PhenomT模型所补充，这些模型开启了新的策略来模拟进动和偏心率，并通过现象学波形方法进行广义相对论的检验。 PhenomX和PhenomT都是用相似的技术和精度目标构建的，由于它们的计算效率，这种“第X代”模型家族使得在贝叶斯推断中常规使用次主导球面谐波成为可能。 我们展示了这些模型与其他最先进的波形模型对于GW190412的良好一致性，并讨论了相对于前一代现象学波形模型的改进。 我们还讨论了贝叶斯推断的实际方面，如运行收敛性、采样参数的变化以及计算成本。 显示英文摘要

摘要： We re-analyse the gravitational-wave event GW190412 with state-of-the-art phenomenological waveform models. This event, which has been associated with a black hole merger, is interesting due to the significant contribution from subdominant harmonics. We use both frequency-domain and time-domain waveform models. The PhenomX waveform models constitute the fourth generation of frequency-domain phenomenological waveforms for black hole binary coalescence; they have more recently been complemented by the time-domain PhenomT models, which open up new strategies to model precession and eccentricity, and to perform tests of general relativity with the phenomenological waveforms approach. Both PhenomX and PhenomT have been constructed with similar techniques and accuracy goals, and due to their computational efficiency this "generation X" model family allows the routine use of subdominant spherical harmonics in Bayesian inference. We show the good agreement between these and other state-of-the-art waveform models for GW190412, and discuss the improvements over the previous generation of phenomenological waveform models. We also discuss practical aspects of Bayesian inference such as run convergence, variations of sampling parameters, and computational cost.