Time：1101117 (Wed.) 14:20~16:20
Speaker：Prof. 潘璽安(PAN, Hsi-An)
淡江大學物理學系/Department of physics, Tamkang University
Title：What You Need To Know About Galaxy Interactions and Mergers
Abstract：Interaction and collision between two (or more) galaxies are common phenomena in the Universe. This is not a far off thing. About 4.5 billion years from now, our galaxy, the Milky Way, will collide with our large neighbor Andromeda (M31). In this talk, I will introduce the types of interacting galaxies and galaxy mergers and how to identify interacting galaxies/mergers in the Universe — in particular in large galaxy survey. Galaxy interactions have strong implication on galaxy evolution. In the talk, I will also discuss the impact of galaxy interaction on altering cold gas properties (nursery of stars), triggering star formation and AGN, and driving morphological transformation of galaxies. Finally, I will show the likely fate of our Milky Way within about the next 4.5 billion years.
Place：B101, Gongquan Campuses, NTNU