Predictions on the Abundance of Primordial Black Holes: Results from the SMILE VLBI Milli-lensing Sample
Primordial black holes (PBHs) formed in the early Universe represent a well-motivated dark matter candidate. However, their abundance in the intermediate-to-high mass range (106–109 M⊙) remains relatively less constrained. In this mass regime, the corresponding Einstein radii on the milliarcsecond scale make very long...