Abstract

The average size of quiescent galaxies grows with cosmic time due to both population effects as well as evolution of individual galaxies. Theoretically, individual evolution is thought to occur through a large number of minor dry mergers, necessary to reproduce the kinematic properties of galaxies. This hypothesis is difficult to test with photometric surveys, but new, large and ultra-deep spectroscopic surveys of the early Universe enable us, for the first time, to investigate the kinematic signatures of minor mergers. I report on current work leveraging this new data to gain insight into structural evolution of galaxies after quiescence.

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