Galaxy mergers play a vital role in the evolution of galaxies: building more massive galaxies, triggering starburst and AGN activity and transforming spiral galaxies into elliptical galaxies. At the same time accretion of dark matter and IGM gas are also significant to the cosmic evolution of the halos and galaxies within them.
The purpose of this workshop is to bring together observational and theoretical researchers in this field to synthesize recent results addressing major uncertainties : What are the frequencies and basic characteristics of mergers in different cosmic epochs? Are most of high-z extreme-starbursts and AGNs mergers, or are they galaxies with strong cold IGM gas accretion? Are nearly all elliptical galaxies formed through mergers? Do mergers and normal disc galaxies have different star-formation/gas-density relations (Kennicutt-Schmidt law) and stellar initial mass functions (IMF)? There have been major advances in both theory (higher resolution simulations with radiative transfer and modeling star formation, IGM accretion and nuclear accretion) and observations (constraining merger rates, star formation history and galaxy mass and luminosity distributions at high redshifts -- Spitzer, Akari and Herschel). This meeting seeks to integrate these many advances, identify major uncertainties and to set future directions (for example with ALMA and JWST) on high-z galaxy evolution.
National Science Council (Taiwan)
National Science Foundation (USA)
National Taiwan University (Taiwan)
Academia Sinica Institute of Astronomy and Astrophysics (Taiwan)
The Astronomical Society Of The Republic Of China (Taiwan)
Leung Center for Cosmology and Particle Astrophysics (Taiwan)