Abstract
The cosmic large-scale structures of the Universe are mainly the result of the gravitational instability of initially small-density fluctuations in the dark-matter distribution. Dark matter appears to be initially cold and behaves as a continuous and collisionless medium on cosmological scales, with evolution governed by the gravitational Vlasov–Poisson equations. Cold dark matter can accumulate very efficiently at focused locations, leading to a highly non-linear filamentary network with extreme matter densities. Traditionally, investigating the non-linear Vlasov–Poisson equations was typically reserved for massively parallelised numerical simulations. Recently, theoretical progress has allowed us to analyse the mathematical structure of the first infinite densities in the dark-matter distribution by elementary means. We review related advances, as well as provide intriguing connections to classical plasma problems, such as the beam–plasma instability.
Originalsprache | Englisch |
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Aufsatznummer | 10 |
Fachzeitschrift | Reviews of Modern Plasma Physics |
Jahrgang | 5 |
Ausgabenummer | 1 |
DOIs | |
Publikationsstatus | Veröffentlicht - 5 Nov. 2021 |
ÖFOS 2012
- 103004 Astrophysik