Mortlock, D JPatel, MWarren, S JVenemans, BMcMahon, R GHewett, Paul CSimpson, CSharp, RobertBurningham, BDye, SEllis, S2015-12-130004-6361http://hdl.handle.net/1885/80177Optical and near-infrared (NIR) spectra are presented for ULAS J131911.29+095051.4(hereafter ULAS J1319+0950), a new redshift z = 6.127 ± 0.004 quasar discovered in the Third Data Release (DR3) of the UKIRT Infrared Deep Sky Survey (UKIDSS). The source hKeywords: Broad absorption lines; Cosmology: observations; Deep-sky; Emission lines; Equivalent width; Galaxies: quasars: individual: ULAS J020332.38+001229.2, ULAS J131911.29+095051.4-infrared: general; High-redshift; Near infrared spectra; Optical depth; Red shif Cosmology: observations; Galaxies: quasars: individual: ULAS J020332.38+001229.2, ULAS J131911.29+095051.4-infrared: general200910.1051/0004-6361/2008111612016-02-24