Mapping Nearby Galaxies with Integral Field Spectroscopy
活动时间： 11月23日14时30分
地 点 ： 腾讯会议（744 461 7381）
讲座内容：
Galaxies areecosystems consisting of multiple components which interplay with each otherand are distributed over a wide range of spatial scale, from sub-galacticscales up to scales of dark matter halos. Therefore, in order to have acomplete picture of galaxy evolution, one has to obtain observational data withmultiple wavebands and different spatial resolutions to probe physicalprocesses both internal and external to galaxies. Current integral field unit (IFU) surveys such asCALIFA and MaNGA are providing resolvedspectroscopy for large samples of galaxies in the local Universe, allowing thestellar populations and star formation histories across the whole galaxy areato be studied with high accuracy. Inaddition, maps of molecular gas are also being obtained by arrays of radioantenna, thus providing additional data for linking the star formation and gasaccretion processes in the IFU era. I'll present our recent studies based onthe CALIFA, MaNGA and CARMA-EDGE surveys, particularly focusing on the resolvedmaps of star formation history and molecular gas, as well as roles of internalstructure and environment in driving galaxy evolution.
主讲人介绍：
Cheng Li is a Professor at Department ofAstronomy of Tsinghua University in Beijing. Before he joined Tsinghua inSeptember 2015, he worked at Shanghai Astronomical Observatory as a groupleader (2010-2015) and Max-Planck Institute for Astrophysics as a postdoc(2007-2010). He obtained his PhD from USTC in 2006. His research has beenfocused on the structure formation and evolution of galaxies, as well as thelarge-scale structure of the Universe. He is a member of the SDSS-IV andSubaru/PFS projects.Currently he is interested in using data from bothobservational experiments (particularly the SDSS-IV MaNGA survey) and numericalcosmological simulations to understand the physical link of different classesof galaxies with their hosting dark matter halos.
发布时间：2021-11-22 15:45:26