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SHAO Astrophysics Colloquia 

Studying Galaxy Population in the Big Data Era
Speaker: Yingjie Peng (KIAA/Peking University)
Time & Place: Wednesday, 3:00pm, January 20th, Lecture Hall, 3rd floor 
Abstract: The galaxy population appears to be composed of infinitely complex different types and properties at first sight. However, when large samples of galaxies are studied, it appears that the majority of galaxies just follow simple scaling relations while the outliers represent some minority. We demonstrate the astonishing underlying simplicities of the galaxy population emerged from large galaxy surveys and “reverse engineering” of the observed galaxy population at different epochs; derive the analytical forms for the dominant evolutionary processes that control the galaxy evolution. On the other hand, gas regulation is one of the keys to understanding galaxy formation and evolution, as gas regulation depicts the dynamical interplay of the key physical processes in galaxies: gas inflow, star formation, outflow and metal production. I will introduce how the gas regulation acts in galaxies and its dynamical behaviours, and discuss how to apply the gas regulation method to study the evolution of the galaxy population, including the scientific topics that demand forthcoming observing facilities such as MOONS for VLT and future TMT, ELT

 
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  星系和宇宙学研究中心是上海天文台从事基础天体物理研究的主要机构,包括8个科研团组和1个科学院开放实验室,研究方向包括:黑洞和高能天体物 理、星系形成与演化、宇宙学、宇宙大尺度结构、数值天体物理、星团和银河系结构、系外行星等方向,尤其在黑洞吸积与喷流理论、银河系中心黑洞的观测与理论研究、宇宙大尺度结构的数值模拟、以及星系形成与演化等方面的研究在国际上有一定影响。中心研究力量雄厚,现有研究人员42名,其中国家杰出青年基金获得者6人,科学院“百人计划”入选者12人,博士生导师18人。目前在读研究生和博士后及客座研究人员共45人。
  星系宇宙学中心中心与国内外的天文研究机构有着密切的合作关系:与中国科技大学成立了“星系和宇宙学联合实验室”、与德国马普天体物理所成立了马 普伙伴小组。中心还参与了多项大规模的国际、国内天文观测计划,如LAMOST巡天,Sloan IV,BigBoss,LSST等。
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