We present in this talk an overview of the neutron star origin events and masses. Using the existing sample of ∼80 measured neutron star masses, we show that the distribution requires more than one mass‐scale and that its highest value inferred from the sample is compatible with 2.5M_⊙, suggesting that very heavy neutron stars may be present in Nature. The case of some “spider” systems and the enigmatic high‐mass object in the GW190408 event, as well as the highest measured values from other binaries may support a high M_max. Finally, we review the connection of supernovae compact remnants with the observed masses and discuss some important features still unclear from simulations related to the former problem of the mass origins.

中文翻译：

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中子星的起源和质量

我们在本次演讲中概述了中子星起源事件和质量。使用现有样本〜80名测量中子星群众，我们表明，分布需要不止一个质量级，而且其从样本推断最高值是兼容2.5中号_⊙，这表明非常沉重的中子星可能存在于自然。某些“蜘蛛”系统和GW190408事件中神秘的高质量物体的情况，以及来自其他二进制文件的最高测量值可能支持较高的M _max。最后，我们回顾了超新星致密残余物与观测到的质量之间的联系，并讨论了一些与以前的质量起源问题相关的模拟仍不清楚的重要特征。