Steward Observatory is a full partner in SDSS V, and was a full partner in SDSS III and SDSS IV. We have researchers working with data across the three "Mapper" surveys. The Milky Way Mapper (MWM) is targeting 4-5 million stars across the Milky Way with infrared spectra from the APOGEE spectrographs and optical spectra from the BOSS spectrographs, to understand the evolution of the Milky Way, the physics of stars and the ISM, and the architecture of star and planetary systems. The Local Volume Mapper (LVM) is observing the ISM and stellar populations in the Milky Way and several local galaxies, collecting more than 25 million spectra over 2,500 square degrees on sky, to explore the physics of star formation and the interactions between stars and the ISM. The Black Hole Mapper (BHM) is targeting more than 400,000 sources, including many black holes, with optical spectra to measure black hole masses, and probe the growth of black holes across cosmic time.
Steward was also involved in development of instrumentation hardware for SDSSV, including the Fabry-Perot etalon for the APOGEE spectrographs, and the CCD detectors and cameras for the LVM spectrographs.
