Subjects: Astronomy >> Astrophysical processes submitted time 2023-02-19
Andrés Almeida
Scott F. Anderson
Maria Argudo-Fernández
Carles Badenes
Kat Barger
Jorge K. Barrera-Ballesteros
Chad F. Bender
Erika Benitez
Felipe Besser
Dmitry Bizyaev
Michael R. Blanton
John Bochanski
Jo Bovy
William Nielsen Brandt
Joel R. Brownstein
Johannes Buchner
Esra Bulbul
Joseph N. Burchett
Mariana Cano Díaz
Joleen K. Carlberg
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.
Peer Review Status:
Awaiting Review
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