Title: ULAS J141623.94 + 134836.3 - a faint common proper motion companion of a nearby L dwarf. Serendipitous discovery of a Y dwarf candidate in UKIDSS DR6 Authors: R.-D. Scholz New near-infrared large-area sky surveys (e.g. UKIDSS, CFBDS, WISE) go deeper than 2MASS and aim at detecting brown dwa...