제목: Galaxy evolution within and beyond clusters: environmental effects in clusters and Lyman-continuum escape from a strongly lensed galaxy​​​​

Galaxy clusters offer unique laboratories for driving our understanding of galaxy evolution. On the first topic, I will show how environmental effects act in distant universe where such effects still remain elusive. Spanning a wide range of redshift (~5 Gyr, 0.3 < z < 1.1), we investigate a large sample of 1626 cluster galaxies located within 105 clusters. We find clear evidence for a gradual (mean stellar) age increase of galaxies since their in-fall (using projected phase-space). This suggests that galaxies become environmentally quenchend due to long exposure to cluster environments such as starvation and/or ram pressure stripping.​