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We present our analysis of the LyC emission and escape fraction of 111spectroscopically verified galaxies with and without AGN from $2.26<z<4.3$. Weextended our ERS sample from Smith et al. (2018; arXiv:1602.01555) with 64galaxies in the GOODS North and South fields using WFC3/UVIS F225W, F275W, andF336W mosaics we independently drizzled using the HDUV, CANDELS, and UVUDFdata. Among the 17 AGN from the 111 galaxies, one provided a LyC detection inF275W at $m_{AB}=23.19$ mag (S/N $\simeq$ 133) and $GALEX$ NUV at$m_{AB}=23.77$ mag (S/N $\simeq$ 13). We simultaneously fit $SDSS$ and$Chandra$ spectra of this AGN to an accretion disk and Comptonization model andfind $f_{esc}$ values of $f_{esc}^{F275W}\simeq 28^{+20}_{-4}$% and$f_{esc}^{NUV}\simeq 30^{+22}_{-5}$%. For the remaining 110 galaxies, we stackimage cutouts that capture their LyC emission using the F225W, F275W, and F336Wdata of the GOODS and ERS samples, and both combined, as well as subsamples ofgalaxies with and without AGN, and $all$ galaxies. We find the stack of 17 AGNdominate the LyC production from $\langle z\rangle\simeq 2.3-4.3$ by a factorof $\sim$10 compared to all 94 galaxies without AGN. While the IGM of the earlyuniverse may have been reionized mostly by massive stars, there is evidencethat a significant portion of the ionizing energy came from AGN.

The Lyman Continuum Escape Fraction of Galaxies and AGN in the GOODS Fields