The process of reionization is one of the major pieces of galaxy evolution which remain to be un- derstood. With new observational tools like JWST on the horizon, imaging reionization-era galaxies will soon be possible. However, because the ionizing radiation is absorbed by the neutral hydrogen it ionizes, observers need some other parameter by which to identify those galaxies capable of reionizing. The search for ionizing emission via related parameters is well underway, and has come up with some tentative correlations, yet a consistent indicator or set of indicators remains to be discovered. New data in the Low-Redshift Lyman Continuum Survey and the Ultraviolet Imaging of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey reveal populations of potential Lyman Continuum leakers heretofore unseen on differing redshift scales (z∼0.3 and z≥2.4 respectively). In this paper, we perform Spectral Energy Distribution fits on these sources with a variety of star formation histories. We find that for low-redshift sources it is possible to reproduce their observationally verified fesc using a double-exponential star formation history, but in the high-z this fit produces puzzling distributions. We also identify 42 potential high redshift Lyman Continuum leakers. In addition, we find that LyC leakage is not ubiquitous in galaxies at z ∼ 2-4.
Velikonja, Nicholas J. and Rutkowski, Michael
"Sampling Candidate Reionization Galaxies using Spectral Energy Distribution Fitting,"
Macalester Journal of Physics and Astronomy: Vol. 9
, Article 11.
Available at: https://digitalcommons.macalester.edu/mjpa/vol9/iss1/11