My name is Jérémy Fensch. I am an Associate Professor at ENS de Lyon and astrophysicist researcher at Centre de Recherche Astrophysique de Lyon.
My research focuses on galaxy collisions and induced formation of stars, star clusters and tidal dwarf galaxies. I am also interested in the evolution of globular clusters and the evolution of galactic structures with redshift.
To this purpose, I run and study numerical simulations, using the AMR code RAMSES. I am also involved in observational projects and use data from the VLT (FORS and MUSE) and the Hubble Space Telescope.
Globular cluster systems around massive galaxies show a bimodal color distribution, composed of blue and red clusters. However, the more massive blue clusters are, the redder they look. An explanation for this trend might reside in the retention of supernovae ejecta by the star cluster during its youth.