Abstract
The eighteenth data release of the Sloan Digital Sky Surveys (SDSS) is the first one for SDSS-V, the fifth generation of the survey. SDSS-V comprises three primary scientific programs, or "Mappers": Milky Way Mapper (MWM), Black Hole Mapper (BHM), and Local Volume Mapper (LVM). This data release contains extensive targeting information for the two multi-object spectroscopy programs (MWM and BHM), including input catalogs and selection functions for their numerous scientific objectives. We describe the production of the targeting databases and their calibration- and scientifically-focused components. DR18 also includes ~25,000 new SDSS spectra and supplemental information for X-ray sources identified by eROSITA in its eFEDS field. We present updates to some of the SDSS software pipelines and preview changes anticipated for DR19. We also describe three value-added catalogs (VACs) based on SDSS-IV data that have been published since DR17, and one VAC based on the SDSS-V data in the eFEDS field.
| Original language | English |
|---|---|
| Article number | 44 |
| Number of pages | 38 |
| Journal | Astrophysical Journal Supplement Series |
| Volume | 267 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 8 Aug 2023 |
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SDSS-V Data Release 18 (DR18)
Weijmans, A.-M. (Creator), Sloan Digital Sky Survey (SDSS), 19 Jan 2023
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