SFHs and feedback

A range of physical processes regulate how galaxies from stars, and are thought to act over different characteristic spatial and temporal scales (see figure below from Iyer et al. 20201). I've been studying this using different cosmological simulations, and am developing machinery to constrain the strength of feedback from observational signatures in galaxy SFHs.

the timescales on which different physical processes affect star formation in galaxies

  1. Kartheik G. Iyer, Sandro Tacchella, Shy Genel, Christopher C. Hayward, Lars Hernquist, Alyson M. Brooks, Neven Caplar, Romeel Davé, Benedikt Diemer, John C. Forbes, Eric Gawiser, Rachel S. Somerville, and Tjitske K. Starkenburg. The diversity and variability of star formation histories in models of galaxy evolution. \mnras , 498(1):430–463, October 2020. arXiv:2007.07916, doi:10.1093/mnras/staa2150. ↩