<p>Inhomogeneous Cosmologies III<p>

Session

Tuesday Session 1

18 Sept 2018, 09:00

Conveners

Tuesday Session 1

• Jessie Durk (Queen Mary University of London)

2. The most massive virialized objects in the Universe

Jan Ostrowski (Centre de Recherche Astrophysique de Lyon)

18/09/2018, 09:00

The existence of the most massive virialized objects can be used as a tool to study properties of the Universe, such as the nature of gravity and dark sector, as well as, the Gaussianity of primordial density fluctuations. In my talk I will show the predictions for the most massive objects in the Universe using the silent universe model (Einstein field equations with no rotation and energy...

26. Preventing the Big Rip in a silent universe

Colin MacLaurin (University of Queensland)

18/09/2018, 09:30

The 'Big Rip' is a proposed hypothetical end to the universe where the Hubble parameter increases to infinity in a finite time. It assumes the universe contains a fluid ('dark energy' say) with an equation of state state w<-1 (pressure + density < 0). Caldwell et al give just 20 Gyr until the catastrophe, under assumptions including perfect homogeneity and isotropy, however we show...