Matthee, Jorryt and Sobral, David and Best, Philip and Khostovan, Ali Ahmad and Oteo, Ivan and Bouwens, Rychard and Röttgering, Huub (2017) The production and escape of Lyman-Continuum radiation from star-forming galaxies at z~2 and their redshift evolution. Monthly Notices of the Royal Astronomical Society, 465 (3). pp. 3637-3655. ISSN 0035-8711
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Abstract
We study the production and escape of ionizing photons of a sample of 588 H$\alpha$ (Ha) emitters (HAEs) at z=2.2 in COSMOS by exploring their rest-frame Lyman Continuum (LyC) with GALEX/NUV data. We find 8 candidate LyC leakers with f$_{esc}$>60% out of a clean subsample of 191 HAEs (i.e. without any neighbour or foreground galaxy inside the GALEX PSF). Overall, we measure a very low escape fraction f$_{esc}$ z