Theory of Dark Matter

Abstract

We discuss the hypothesis that the constituents of dark matter in the galactic halo are Primordial Intermediate-Mass Black Holes (PIMBHs). The status of axions and WIMPs is discussed, as are the methods for detecting PIMBHs with emphasis on microlensing. The role of the angular momentum J of the PIMBHs in their escaping previous detection is considered.

Comments: 17 pages LaTeX. Talk at Conference on Cosmology, Gravitational Waves and Particles. Nanyang Technological University, Singapore. February 6-10, 2017. arXiv admin note: text overlap with arXiv:1510.00400, arXiv:1608.05009