Performance of the Gemini Planet Imager Non-redundant Mask and Spectroscopy of Two Close-separation Binaries: HR 2690 and HD 142527

Spanish MINECO [AyA2014-55216]; National Science Foundation Graduate Research Fellowship Program [DGE1232825]; NASA [APRA08-0117, NNX14AJ80G, NNX15AC89G, NNX15AD95G/NEXSS]; STScI Directors Discretionary Research Fund; NSF [AST-151833, AST-1411868]; NASA's Science Mission Directorate; NASA Exoplanets Research Program [NNX16AD44G]; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]