Tracing Outflows from Stellar Feedback in the Early Universe with Lyman-$\alpha$

James Nianias, Jeremy Lim, Yik Lok Wong +3

Blind spectroscopy of massive lensing galaxy clusters with MUSE has revealed large numbers of gravitationally-lensed Lyman-$\alpha$ emitters exhibiting asymmetric profiles at $ 2.9 \le…