The escape fraction of ionizing radiation from galaxies is a fundamental parameter that can be accurately measured only in the local universe. However, it is at high redshift, during the epoch of cosmic reionization, that understanding this value is most critical. While the JWST is providing unprecedented characterization of the galaxy population at these early times, direct measurements of the escape fraction remain impossible. In this presentation, I will review recent advances in our understanding of the escape fraction in the local universe and highlight several outstanding questions regarding the mechanisms that facilitate the escape of ionizing radiation, as well as the evolution of this process over cosmic time.
Seminar Schedule: Every first Wednesday of the month, 1pm – 2pm ET
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Recording and slides for past seminars will be made available on the SIG’s Events page.