Breathing FIRE: How Stellar Feedback Drives Radial Migration, Rapid Size Fluctuations, and Population Gradients in Low-Mass Galaxies

Kareem El-Badry, Andrew R. Wetzel, Marla Geha +4

We examine the effects of stellar feedback and bursty star formation on low-mass galaxies ($M_{\mathrm{star}}=2\times 10^6-5\times 10^{10}{\mathrm{M}}_{\odot }$) using the FIRE (Feedback in Rea…