7 papers
Non-Cold Dark Matter from Memory-Burdened Primordial Black Holes
Valentin Thoss, Laura Lopez-Honorez, Florian Kühnel +1
Non-cold dark matter particles can arise from the evaporation of primordial black holes (PBHs). In this paper, we further investigate how the memory-burden effect, which delays the…
Can a Breakdown of Hawking Evaporation Open a New Mass Window for Primordial Black Holes as Dark Matter?
Gabriele Montefalcone, Dan Hooper, Katherine Freese +3
Semi-classical Hawking evaporation is expected to break down at some point in a black hole's evolution as the effects of quantum gravity become important. In particular, it has bee…
Observing Micro Black Hole Dark Matter
Manuel Ettengruber, Florian Kühnel, Florian Kühnel
Primordial micro black holes can constitute dark matter if short-distance gravity is modified by extra dimensions or a large number of species and if the memory-burden effect suffi…
Micro Black Hole Dark Matter
Manuel Ettengruber, Florian Kuhnel
The influence of a possible low gravity scale, concretely through the presence of extra dimensions or additional species, on radiation properties of micro black holes is investigat…
Primordial Black Holes
Albert EscrivÃ, Florian Kuhnel, Yuichiro Tada
Aspects of primordial black holes, i.e. black holes formed in the early Universe, are reviewed. Special emphasis is put on their formation, their role as dark matter candidates and…
Primordial Black Holes
Bernard Carr, Florian Kuhnel
In this chapter we first describe the early history of primordial black hole (PBH) research. We then discuss their possible formation mechanisms, including critical collapse from i…