Observations have indicated that we do not see neutron stars (NS) of mass near the theoretical upper limit as predicted. Here we invoke the role of dark matter (DM) particles in star formation, and their role in lowering the mass of remnants eventually formed from these stars. Massive stars can capture DM particles more effectively than the lower mass stars, thus further softening the equation of state of the remnant neutron stars. We also look at the capture of DM particles by the NS, which could further soften the upper mass limit of NS. The admixture of DM particles would be higher at earlier epochs (high z).

中文翻译：

---

暗物质对中子星上限质量的影响

观察表明，我们没有看到质量中子星（NS）接近预期的理论上限。在这里，我们调用暗物质（DM）粒子在恒星形成中的作用，以及它们在降低最终由这些恒星形成的残余物质量中的作用。与较低质量的恒星相比，质量较大的恒星可以更有效地捕获DM粒子，从而进一步软化了残余中子星的状态方程。我们还研究了NS对DM颗粒的捕获，这可以进一步软化NS的质量上限。DM颗粒的混合物在较早的时期（较高的z值）会更高。