Lyman-continuum galaxies and the escape fraction of Lyman-break galaxies

  title={Lyman-continuum galaxies and the escape fraction of Lyman-break galaxies},
  author={Jeff Cooke and Emma V. Ryan-Weber and Thibault Garel and Carlos Gonzalo Diaz},
  journal={Monthly Notices of the Royal Astronomical Society},
Lyman break galaxies (LBGs) at z ~ 3-4 are targeted to measure the fraction of Lyman continuum (LyC) flux that escapes from high redshift galaxies. However, z ~ 3-4 LBGs are identified using the Lyman break technique which preferentially selects galaxies with little or no LyC. We re-examine the standard LBG selection criteria by performing spectrophotometry on composite spectra constructed from 794 U_nGR-selected z ~ 3 LBGs from the literature while adding LyC flux of varying strengths. The… 

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