Description
Description
Cosmology has advanced from "2.5 facts" in 1963 to a very data-rich
field today. This has led to the determination of the baryon
density, the dark matter density, and the dark energy density. But
more facts lead to a greater reliance on advanced statistical
techniques, which are usually useful but occasionally misleading.
It is important to consider "look elsewhere effects", and to...
Twenty years after the discovery of cosmic acceleration, or Dark Energy, there is now robust evidence from a number of independent precision measurements. I will review recent progress on determining the properties of Dark Energy from different cosmological probes, highlight growing tensions in the LCDM paradigm, and conclude with an outlook on upcoming large experiments of the early 2020s.
Immense progress has been made in the last decade in simulating and understanding the role that baryons have in influencing the evolution and structure of dark matter on small scales and in dwarf galaxies. In this talk I will review the successes in modeling small scales and discuss the implications for interpreting the dark matter model. I will also highlight some remaining challenges and...
Strong gravitational lensing provides a powerful probe of the nature of dark matter as it is sensitive to the presence of low mass structure regardless of whether that structure contains stars or gas. I will present a review of strong gravitational lensing dark matter measurements, and discuss future paths for these methods.
