Abstract:  Continuity approach is an effective way to reconstruct the evolutional sequence of the galaxy population that is observed by large sky surveys at different epochs. It can be used to study the evolution of the distribution functions (e.g. stellar mass function, star formation rate distribution, density distribution function) of different galaxy populations. While gas regulation is one of the keys to understanding galaxy formation and evolution, as it depicts the dynamical interplay of the key physical processes in galaxies: inflow, star formation, outflow and metal production. It can be used to explore the evolution of various scaling relations (e.g. mass-star formation rate relation, mass-metallicity relation, stellar mass to halo mass ratio) of the galaxy population. The combination this two approaches gives a powerful yet simple full analytical framework to study the evolving galaxy population. Then I will discuss plans to explore some key issues in galaxy evolution with existing and forthcoming observing facilities (e.g. FAST, MOONS). 

Bio: Yingjie Peng is an astronomer at the Kavli Institute for Astronomy and Astrophysics (KIAA), Peking University. He received his PhD from ETH Zurich in 2012 with the award of ETH Medal, and then became a research associate at Cavendish Laboratory and a postdoctoral fellow at Kavli Institute for Cosmology, University of Cambridge. He is a fellow of Homerton College, University of Cambridge since 2013. He joined KIAA in 2015. In 2015, he was awarded  the RAS Research Fellowship by the Royal Astronomical Society, UK. In 2016 he was awarded the MERAC Prize in Observational Astrophysics by the European Astronomical Society (EAS). His research interests are observational cosmology, galaxy formation and evolution.