题  目：Spacial Density and Star Formation Activity of z=0 Interacting Galaxies in K-Band Selected Major-Merger Pairs

 

报告人：Dr. C. Kevin Xu

　　　　(IPAC，CALTECH, USA）

 

摘  要:
It has been suggested that the strong decline of the cosmic star formation rate (SFR) since z=1 is mostly due to the evolution of star formation associated with galaxy interactions/mergers. However, this has been challenged in recent literature. A quantitative constraint on the evolution of interaction-induced star-formation in the universe is very important for future development of the galaxy evolution theory. In this talk, I will present a study on samples of nearby close major-merger pairs of galaxies selected from the 2MASS database in K-band. This is to provide a highly accurate and unbiased local (z=0) benchmark for studies on evolution of interacting galaxies.

 

时  间：2009年9月29日上午10:00
地  点：（北京西路2号）紫台大楼327教室

 

　　　　　　　　　　　　　　　　　　　　　 紫金山天文台学术委员会学术交流工作委员会 
　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　  2009年9月22日