| Bowler, Brendan Peter | Direct imaging search for planets around low-mass stars and spectroscopic characterization of young exoplanets | 2013 | University of Hawaii | NIFS+ALTAIR | USA |
| Dupuy, Trent Jordel | Direct measurements of the fundamental properties of low-mass stars and brown dwarfs | 2010 | University of Hawaii | Hokupaa | USA |
| Chilcote, Jeffrey Kaplan | Direct observation of extrasolar planets and the development of the gemini planet imager integral field spectrograph | 2014 | University of California, Los Angeles | GPI | USA |
| Siegler, Nicholas | Discovery of very-low mass binary stars and circumstellar disks in the infrared | 2007 | The University of Arizona | Hokupaa | USA |
| Cook, Jason Campbell | Dissecting intermediate-sized Kuiper belt objects | 2007 | Arizona State University | NIRI+ALTAIR | USA |
| Lagos, Patricio | Distribuição espacial das populações estelares e o meio interestelar nas galáxias HII | 2008 | Observatorio Nacional | GMOS-S | Brazil |
| Schimoia, Jáderson da Silva | Double peaked profiles: revealing the presence of accretion disks in the broad line region of active galaxies | 2015 | Federal University of Rio Grande do Sul | GMOS-S | Brazil |
| Andrews, Jeffrey John | Double white dwarfs as probes of single and binary star evolution | 2016 | Columbia University | GMOS-N/GMOS-S | USA |
| Bilikova, Jana | Dust disks around hot white dwarfs and central stars of planetary nebulae | 2012 | University of Illinois at Urbana-Champaign | NIRI/MICHELLE | USA |
| Noble, Allison | Dusty star-forming lalaxies within high-redshift galaxy clusters | 2014 | McGill University | GMOS-N | Canada |
| Ural, Ugur | Dwarf spheroidal galaxies : kinematics of stellar populations and mass modelling with tides | 2011 | University of Leicester | GMOS-N | UK |
| Schaefer, Gail Helen | Dynamical masses of pre-main sequence stars | 2004 | State University of New York at Stony Brook | NIRI+ALTAIR | USA |
| Beifiori, Alessandra | Dynamics induced by the central supermassive black holes in galaxies | 2010 | University of Padova (Italy) | NIRI+ALTAIR | Other |
| Hernández-Jiménez, José Andrés | Efeitos da Interação na Cinemática, Morfologia e Dinâmica das Galáxias em Fusão Menor AM1219 430, AM2058 381 e AM1228 260 | 2015 | Federal University of Rio Grande do Sul | GMOS-S | Brazil |
| Foltz, Ryan Michael | Environmental Quenching in Clusters at High Redshift | 2017 | University of California Riverside | GMOS-N/GMOS-S | USA |
| Menezes, Roberto Bertoldo | Espectroscopia 3D de núcleos ativos de galáxias tratamento e análise de dados no óptico e no infravermelho próximo | 2012 | University of Sao Paulo | GMOS-N/GMOS-S/NIFS+ALTAIR | Brazil |
| Granada, Anahi | Espectroscopia IR de estrellas B con lineas en emision | 2010 | Universidad Nacional de La Plata (UNLP) | NIRI/GNIRS | Argentina |
| Collado, Ana | Estrellas Wolf-Rayet de tipo WN en la Via Lactea | 2013 | Universidad Nacional de San Juan | GMOS-S | Argentina |
| Cochetti, Yanina | Estructura y propiedades físicas de envolturas circunestelares en estrellas Be | 2019 | Universidad Nacional de La Plata | GNIRS | Argentina |
| Faifer, Favio | Estudio comparativo de sistemas de cumulos globulares extragalacticos | 2006 | Universidad Nacional de La Plata (UNLP) | GMOS-N/GMOS-S | Argentina |
