Speaker
Matthew Gorton
(University of Nottingham)
Description
Stellar microlensing strongly constrains the fraction of dark matter in compact objects, such as primordial black holes (PBHs). However, PBHs are expected to form clusters, and it has been argued that these constraints are therefore weakened or evaded. I will present a plausible PBH cluster model for the most commonly-studied PBH formation mechanism: the collapse of large curvature perturbations generated by inflation. I will then discuss the impact of these PBH clusters on stellar microlensing constraints.
| Type of presentation | 20 minute talk |
|---|---|
| Would you be interested in receiving feedback on your presentation? | Yes |
| Are you happy for your talk to be recorded? | Yes |
| Please select the most relevant category | Astroparticle |
| Other categories: | Primordial Back Holes |
Primary author
Matthew Gorton
(University of Nottingham)
