Dr Jiang

My PhD student Tao Jiang graduated today. His thesis involved the cross-correlations of various galaxy populations as a function of color and luminosity. He was able to show that the red-galaxy population has been growing since redshift unity mainly from merger activity, and that the growth is dominated by red-red mergers (that is, dry mergers). He also showed that the rate of blue-galaxy mergers is consistent with the rate at which blue galaxies transform into red galaxies (pass into the red population), which is pretty striking. Congratulations, Dr Jiang!