Program: GN-2006B-Q-95

The role of global kinematics (rotation and superwinds) in z>1 star forming (SF) galaxies is a key unknown in current models of galaxy formation. Since such galaxies are very small and faint, gravitational lensing is effectively the only way to study them in detail. However, due to the lack of systematic searches, few such lenses, suitable for 8m-class resolved spectroscopy, are known. We have tackled the problem "at source" by analyzing 102/170 deg2 of the CFHT-LS wide field data for bright (mu < 23 i_mag.arc.sec-2) z>1 galaxies lensed by massive galaxy clusters. We present 5 bright cluster arcs for GMOS longslit observations - to confirm source redshifts and emission line strengths and thus identify high-quality targets for future GMOS/IFU observations. Our ultimate goal is to study the internal kinematics, SNe outflows, and stellar IMF on sub-galactic scales. These results will greatly enhance our knowledge of star forming galaxies at high redshift.