Colloquium:- The Dark Universe- Half of the Nobel Prize in Physics 2019
James Peebles’ insights that
1) the cosmic background photons play a critical role in the formation of galaxies and their anisotropies are sensitive to cosmological parameters,
2) dark matter particles have small velocity dispersion(cold), and
3) the cosmological constant Λ is comparable to matter energy density today, form the foundation of the standard cosmological model, which is spectacularly successful in accounting for most of the observational data.
In this so-called ΛCDM model, the universe is dominated by dark energy and dark matter, both of which remain mysterious and require new physics. the speaker will give an elementary introduction of the ΛCDM model and some of the observational evidences supporting it. He will also discuss some outstanding problems of the model and related researches at CUHK.
講者：Prof. Ming Chung CHU 朱明中 教授(香港中文大學物理系)