Forward modelling the O3(a+b) GW transient mass distributions with bpass by varying compact remnant mass and SNe kick prescriptions
Forward modelling the O3(a+b) GW transient mass distributions with bpass by varying compact remnant mass and SNe kick prescriptions
复制标题
通过改变紧凑残余质量和 SNe 踢动处方，使用 bpass 对 O3(a b) GW 瞬态质量分布进行正演建模
DOI：
10.1093/mnras/stac120
复制
发表时间：
2022
影响因子：
4.8
通讯作者：
Ghodla S
中科院分区：
文献类型：
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作者：
Ghodla S
我们介绍了由LIGO/Virgo联盟(LVC)在其第三次观测运行期间报告的观测到的引力波(GW)瞬变的bpasscode套件的正演模拟，即O_3(a+b)。具体地说，我们预测了GW瞬变的预期啁啾质量和质量比分布，并考虑了探测器的灵敏度，以确定当前探测器网络应该在O3(a+b)中探测到多少事件。我们通过在四种不同的剩馀质量估算方案和两种超新星(SNE)踢开处方之间交替来研究这些预测是如何改变的。我们发现，由这些变化产生的模型总体都不能准确地匹配整个O_3(a+b)GW瞬变星表。然而，一些模特对目录中部分内容的一致意见，表明了实现更完全匹配的方法。这些措施包括减少接近质量间隙的低质量黑洞(BH)的数量，同时也增加低于对不稳定SN限制的高质量BH的数量。最后，我们发现来自恒星模型的剩余质量值与SN Kick的选择之间的相互作用是复杂的，并且可能需要根据是否形成中子星或BH而需要不同的Kick处方。
We present forward modelling from thebpasscode suite of the population of observed gravitational wave (GW) transients reported by the LIGO/VIRGO consortium (LVC) during their third observing run, O3(a+b). Specifically, we predict the expected chirp mass and mass ratio distributions for GW transients, taking account of detector sensitivity to determine how many events should have been detected by the current detector network in O3(a+b). We investigate how these predictions change by alternating between four different remnant mass estimation schemes and two supernovae (SNe) kick prescriptions. We find that none of the model populations resulting from these variations accurately match the whole O3(a+b) GW transient catalogue. However, agreement from some models to part of the catalogue suggests ways to achieve a more complete fit. These include reducing the number of low-mass black holes (BHs) close to the mass gap, while also increasing the number of higher mass BHs below the pair-instability SN limit. Finally, we find that the interaction between the value of the remnant mass from a stellar model and the choice of SN kick is complex and different kick prescriptions may be required depending on whether a neutron star or BH is formed.