Poster Presentation

The impact of bursty star formation and stellar feedback processes on Lyman alpha emission

Author(s): Beomchan Koh (Yonsei University), Taysun Kimm (Yonsei University)

Presenter: Beomchan Koh (Yonsei University)

Lyman alpha (LyA) emission is a useful probe of gas kinematics in galaxies. It is also proposed as a potential metric for finding potential Lyman continuum (LyC) leakers that may have reionized the Universe, making it a valuable tool for studying galaxy formation and reionization. In this study, we use two different sets (idealized and cosmological) of radiation-hydrodynamic simulations performed with RAMSES-RT and investigate the impact of baryonic processes on LyA profiles. Specifically, we investigate how bursty star formation alters the neutral gas distribution in and around galaxies, and the relative role of different stellar feedback processes in the formation of LyA. Finally, we compare the simulated LyA profiles with the LyC escape to see if there is a correlation between them.