Kommende 5 dager
Flere kommende arrangementer
Det blir Jazztrofysikk og mørk materie på Realfagsbiblioteket når Jostein Riiser Kristiansen lanserer sin bok Det usynlige universet.
David Mota, ITA
Several extensions of the standard cosmological model include scalar fields as new degrees of freedom in the underlying gravitational theory. A particular class of these scalar field theories include screening mechanisms intended to hide the scalar field below observational limits in the solar system, but not on galactic scales, where data still gives freedom to find possible signatures of their presence. I describe how one can use structure formation to study screening mechanisms in extensions to General Relativity. In particular, I will present observable signatures of modified gravity in the nonlinear matter power spectrum, on the halo mass function and other properties of galaxy clusters. Those would help us to discriminate between models with and without scalar fields and even between different screening mechanisms.
Erik Fooladi (Høgskulen i Volda) will talk about food, gastronomy and sciences.
Development of a rotation sensor and a power distribution unit for a miniaturized telemetry system