J. Ted Mackereth

TL;DR: SDSS-IV is the fourth generation of the Sloan Digital Sky Survey and has been in operation since 2014 July. as discussed by the authors describes the second data release from this phase, and the 14th from SDSS overall (making this Data Release Fourteen or DR14).

TL;DR: The most recent data release from the Sloan Digital Sky Surveys (SDSS-IV) is DR16 as mentioned in this paper, which is the fourth and penultimate from the fourth phase of the survey.

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).

TL;DR: The most recent data release from the Sloan Digital Sky Surveys (SDSS-IV) is DR16 as discussed by the authors, which is the fourth and penultimate from the fourth phase of the survey.