论文标题
限制有限大小的类星体的微透镜观测的ligo/处女座黑色孔的丰度
Limiting the Abundance of LIGO/Virgo Black Holes with Microlensing Observations of Quasars of Finite Size
论文作者
论文摘要
我们提出了一个简单但普遍的论点，该论点强烈限制了原始黑洞（PBHS）（或其他未知的紧凑型物体种群），其质量与BH二进制合并中的Ligo/Pirgo确定的质量相似。我们表明，当考虑到源的有限尺寸时，列式微覆盖可能对镜片的质量非常敏感，并且能够区分高质量的恒星和BHS。大量BHS的显着存在将产生频繁的高通量增强（除了不切实际的大型源外）很少观察到。相反，典型的恒星种群将引起与观察结果一致的通量增值。该结果不包括由Ligo/处女座确定的质量范围内的PBHS（或任何类型的紧凑型物体）作为晶状体星系中的主要暗物质成分。
We present a simple but general argument that strongly limits the abundance of Primordial Black Holes (PBHs) (or other unknown population of compact objects) with masses similar to those determined by LIGO/Virgo from BH binary mergers. We show that quasar microlensing can be very sensitive to the mass of the lenses, and that it is able to distinguish between stars and BHs of high mass, when the finite size of the source is taken into account. A significant presence of massive BHs would produce frequent high flux magnifications (except for unrealistically large sources) which have been very rarely observed. On the contrary, a typical stellar population would induce flux magnifications consistent with the observations. This result excludes PBHs (or any type of compact object) in the mass range determined by LIGO/Virgo as the main dark matter constituents in the lens galaxies.
