The synchrony of production and escape: half the bright Ly-α emitters at z~2 have Lyman continuum escape fractions ~50 per cent

galaxiesevolution galaxieshigh-redshiftintergalactic mediumdark agesreionizationfirst starscosmologyobservationsultravioletAstrophysics - Astrophysics of GalaxiesAstrophysics - Cosmology and Nongalactic Astrophysics