報(bào)告題目：Dissecting Galaxy Ecosystems in Space and Time

主講人：李成 清華大學(xué) 教授

主持人：楊雪娟 教授

報(bào)告時(shí)間：2024年3月28日（周四）16:00-17:00

報(bào)告地點(diǎn)：物理院主樓306報(bào)告廳

內(nèi)容簡(jiǎn)介：Galaxies are evolving ecosystems of multiple components which interplay with each other and are distributed over a wide range of spatial scale, from sub-galactic scales up to scales of dark matter halos. Therefore, in order to have a complete picture of galaxy formation and evolution, one has to obtain observational data with multiple wavebands and different spatial resolutions to probe physical processes both internal and external to galaxies. Current integral field unit (IFU) surveys such as MaNGA are providing resolved spectroscopy for large samples of galaxies in the local Universe, allowing the stellar populations, dust attenuation and gas ionization, as well as star formation histories across the whole galaxy area to be studied with high accuracy. I will present our recent studies of the MaNGA galaxies. If time allows, I'll extend to larger scales and briefly talk about the content of atomic gas and warm gas in/around low-z galaxies out to scales of dark matter halos.

講者簡(jiǎn)介：李成，清華大學(xué)天文學(xué)系教授。在2015年9月加入清華大學(xué)之前，他在上海天文臺(tái)擔(dān)任課題組組長(zhǎng)(2010-2015)。德國(guó)馬克斯-普朗克天體物理研究所博士后(2007-2010)、上海天文臺(tái)博士后(2006-2007)。2006年獲中國(guó)科學(xué)技術(shù)大學(xué)博士學(xué)位。研究主要集中在星系的結(jié)構(gòu)、形成和演化，以及宇宙的大尺度結(jié)構(gòu)。主持國(guó)家杰出青年科學(xué)基金(2013)。SDSS-IV項(xiàng)目(2014-2020)和即將到來(lái)的Subaru/PFS項(xiàng)目的成員。

恒星與星際物質(zhì)湖南省高校重點(diǎn)實(shí)驗(yàn)室

湘潭大學(xué)物理與光電工程學(xué)院