by
Shahab Joudaki(University of California, Irvine)
→
Europe/Stockholm
FA32
FA32
Description
Some of the most outstanding problems of physics lie in the understanding of the dark sector of the universe, in particular dark energy and neutrinos, correlated through their effects on distances and the clustering of matter. I will review the present state of surveys sensitive to the effects of dark energy and neutrino mass. I will then forecast how well the present dark energy density and its equation of state along with the sum of neutrino masses may be constrained using multiple probes that are sensitive to the growth of structure and expansion history, in the form of weak lensing tomography, galaxy tomography, supernovae, and the cosmic microwave background. I will include all cross-correlations between these different probes and isolate their effects on parameter constraints and degeneracies. I will moreover discuss how the inclusion of non-negligible dark energy at early times, motivated by the coincidence problem, affects the determination of the sum of the neutrino masses and dark energy in spatially flat and non-flat cosmological models.
