2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/7651We present the first results of a project aiming to derive the physical properties of high-redshift lensed galaxies, intrinsically fainter than the Lyman break galaxies currently observed in the field. From FORS and ISAAC spectroscopy on the VLT, we use the full rest-frame UV-to-optical range to derive the physical properties (SFR, extinction, chemical abundances, dynamics, mass, etc) of low-luminosity z ~ 2 star-forming galaxies. Although the sample is still too small for statistical studies, these results give an insight into the nature and evolutionary status of distant star-forming objects and their link with present-day galaxies. Such a project will serve as a basis for the scientific analysis of the EMIR/GOYA survey on the GTC.5 pages, 4 figures, Proceedings of the II International Workshop on Science with the GTC, February 15-17, 2004. To be published in Rev.Mex.A.A. CSAstrophysicstext