Sebastien Peirani Position Visiting Scientist　 (from 2024/11/01 ) Main Affiliation ILANCE (CNRS/University of Tokyo), French National Centre for Scientific Research (CNRS) Research Field Astronomy (Astrophysics) Astroparticle Physics Cosmology and Statistics Dark Matter Detection Data-Driven Discovery High Energy Astrophysics Structure Formation E-Mail <sebastien.peirani _at_ oca.eu>  URL http://www2.iap.fr/users/peirani/

My research mainly focus on galaxy formation using hydrodynamical simulations. I try to characterize the role of the physical mechanisms that come into play such as merger events between galaxies (and dark matter haloes), mass accretion, the influence of feedback processes associated to star formation (e.g. UV-background, supernovae explosion) as well as black holes growth and associated active galactic nuclei (AGN) activity. I’m also performing simulations of Milky Way type galaxies for studies related to galactical archeology (e.g. formation of the thin/thick disks) or related to dark matter (in)direct detection (e.g. predictions of gamma-ray/neutrino signals and associated backgrounds).

On much larger scales (>1 Gpc), I take an interest in developing numerical methods in order to predict the clustering statistics in the Lyman-alpha forest as well as in the HI intensity mapping.