Cosmological Structure: The Effects of Dark Energy

Matt Francis
University of Sydney


One of the ways in which the hypothesised dark energy causing the acceleration of the expansion of the universe imprints its presence is through the growth of large scale structure. The properties of dark energy can be parametrised through its equation of state w(z), and different models for the equation of state will trace a different growth history observable though the matter power spectrum. As the accuracy of cosmological observations improve, so must the accuracy of simulations used to model the effects of dark energy. In this talk I will give a brief review of structure formation and N-body simulations as well as present recent work on the effects of a two parameter dynamic dark energy model on the matter power spectrum.