具体时间：2015年7月2号，14：00，地点：理学实验楼717。

他的报告摘要及个人基本情况如下：

Title:INVESTIGATING [X/FE], IMF AND COMPOSITENESS IN INTEGRATED MODELS

 Abstract: We explores several existing challenges of evolutionary stellar population synthesis models in integrated 

light: agemetallicity degeneracy, initial mass function (IMF), elemental abundances, and compositeness.  First, we 

search for age-sensitive and metal sensitive colors in three photometric systems. We also add to the discussion of optical to

near-infrared Johnson cousins broad band colors, finding a great decrease in age sensitivity when updated isochrones are used.  

Then we investigate the element abundances and compositeness of our models, in which we assume a single-peak abundance distribution and the same elemental abundance trends as the Milky Way bulge stars. 

 Varying the width of the abundance distribution function reveals novel ``red lean'' and ``red spread'' effects.  Next, 

we study three effects that co-determine the dwarf/giant ratio: the IMF slope, the IMF low mass cut-off (LMCO), and AGB star contributions.  This degeneracy can be lifted for old, metal-rich stellar populations, although at an observationally challenging level ($\approx$0.02 mag).  Finally, we select and 

reduce more than 200 $z\sim0.4$ red galaxy spectra from the DEEP2 sky survey, and measure the Lick-style spectral indices from the composite spectra. Multiple optical IMF-sensitive indices suggest a shallower IMF that qualitatively agrees with current literature.