标题： 从M87对原初黑洞的限制 显示英文标题

标题： Limits on Primordial Black Holes from M87

摘要： 在太阳质量范围内的原初黑洞可能是暗物质的一个可能重要的组成部分。 我们展示了如何通过原初黑洞对围绕M87超大质量黑洞可能存在的密度尖峰中光线偏折的论证，结合事件视界望远镜合作组织的高分辨率观测，可以得出在天体物理上有意义的质量范围内原初黑洞质量分数的强烈限制。 结果取决于对暗物质尖峰所假设的模型，并表明进一步了解此类尖峰以及对超大质量黑洞进行进一步的高分辨率观测的重要性。 显示英文摘要

摘要： Primordial black holes in the solar mass range are a possibly significant component of dark matter. We show how an argument relating the deflection of light by such black holes in the density spike likely to exist around the M87 supermassive black hole, combined with the high resolution observations of the EHT collaboration, can lead to a strong limits on the primordial black hole mass fraction in an astrophysically relevant mass range. The results depend on the model assumed for the dark matter spike and suggest the interest of further understanding of such spikes as well as further high resolution observations on supermassive black holes.