Program: GS-2015B-Q-103

Currently, ~3000 Planetary Nebulae are catalogued in our Galaxy. Only 16% have spectroscopic information of their central-stars (CSPN). CSPN constitutes an heterogeneous group, most with H-rich atmospheres but an important fraction with H-deficient atmospheres. The origin and evolution of H-deficient CSPN remain poorly understood. To characterize the stellar population of CSPN is necessary to obtain more spectroscopic data. We propose to obtain long-slit GMOS data to perform the spectral classification of eight CSPN.