Pierre Laurent

TL;DR: The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared high-resolution spectrogram, and a novel optical interferometer as discussed by the authors.

TL;DR: The Extended Baryon Oscillation Spectroscopic Survey (eBOSS) as mentioned in this paper uses four different tracers of the underlying matter density field to expand the volume covered by BOSS and map the large-scale structures over the relatively unconstrained redshift range 0.6 0.87.

TL;DR: Data Release 13 (DR13) as mentioned in this paper is the first data release from SDSS-IV, which contains new data, reanalysis of existing data sets and, like all SDSs data releases, is inclusive of previously released data.

TL;DR: Data Release 13 (DR13) as discussed by the authors provides the first 1390 spatially resolved integral field unit observations of nearby galaxies from the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2), Mapping Nearby Galaxies at APO (MaNGA), and the Extended Baryon Oscillation Spectroscopic Survey (eBOSS).