寻找差距：天体物理学激发质量函数的黑洞人口分析
Find the Gap: Black Hole Population Analysis with an Astrophysically Motivated Mass Function
摘要：
我们引入了一种新的黑洞质量函数，它以最少的参数真实地模拟了恒星形成和对不稳定超新星的物理过程。将其应用于LIGO-Virgo GWTC-2目录中的所有事件，我们在M_BHMG = 74.8^{+4.3}_{-8.0} MS处检测到峰值，随后是质量函数的中断。在没有黑洞的情况下重复分析，我们发现这个特征在M_BHMG = 55.4^{+3.0}_{-6.1} MS处。后一个结果建立了预期的“黑洞质量间隙”的边缘，其值与标准恒星结构理论的预期一致，而前一个结果高出约20 MS。如果得到证实将产生深远影响使用贝叶斯技术，我们建立了我们的质量函数适合一个新的目录的黑洞质量近似以及预先存在的唯象质量函数。我们还评论这些结果的影响，约束或发现新的现象，在核物理和粒子物理。
英文摘要：
We introduce a novel black hole mass function which realistically models the physics of star formation and pair instability supernova with a minimal number of parameters. Applying this to all events in the LIGO-Virgo GWTC-2 catalog, we detect a peak at M_BHMG = 74.8^{+4.3}_{-8.0} MS, followed by a break in the mass function. Repeating the analysis without the black holes from the event GW190521, we find this feature at M_BHMG = 55.4^{+3.0}_{-6.1} MS. The latter result establishes the edge of the anticipated "black hole mass gap" at a value compatible with the expectation from standard stellar structure theory, while the former result is ~ 20MS higher, which would have far-reaching implications if confirmed. Using Bayesian techniques, we establish that our mass function fits a new catalog of black hole masses approximately as well as the pre-existing phenomenological mass functions. We also remark on the implications of these results for constraining or discovering new phenomena in nuclear and particle physics.
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