The eighteenth data release of the Sloan Digital Sky Surveys: targeting and first spectra from SDSS-V

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; Andrew R. Casey; Vedant Chandra; Brian Cherinka; Cristina Chiappini; Abigail A. Coker; Johan Comparat; Charlie Conroy; Gabriella Contardo; Arlin Cortes; Kevin Covey; Jeffrey D. Crane; Katia Cunha; Collin Dabbieri; James W., Jr. Davidson; Megan C. Davis; Nathan De Lee; José Eduardo Méndez Delgado; Sebastian Demasi; Francesco Di Mille; John Donor; Peter Dow; Tom Dwelly; Mike Eracleous; Jamey Eriksen; Xiaohui Fan; Emily Farr; Sara Frederick; Logan Fries; Peter Frinchaboy; Boris T. Gaensicke; Junqiang Ge; Consuelo González Ávila; Katie Grabowski; Catherine Grier; Guillaume Guiglion; Pramod Gupta; Patrick Hall; Keith Hawkins; Christian R. Hayes; J. J. Hermes; Lorena Hernández-García; David W. Hogg; Jon A. Holtzman; Hector Javier Ibarra-Medel; Alexander Ji; Paula Jofre; Jennifer A. Johnson; Amy M. Jones; Karen Kinemuchi; Matthias Kluge; Anton Koekemoer; Juna A. Kollmeier; Marina Kounkel; Dhanesh Krishnarao; Mirko Krumpe; Ivan Lacerna; Paulo Jakson Assuncao Lago; Chervin Laporte; Ang Liu; Chao Liu; Xin Liu; Alexandre Roman Lopes; Matin Macktoobian; Viktor Malanushenko; Dan Maoz; Thomas Masseron; Karen L. Masters; Gal Matijevic; Aidan McBride; Ilija Medan; Andrea Merloni; Sean Morrison; Natalie Myers; Szabolcs Mészáros; C. Alenka Negrete; David L. Nidever; Christian Nitschelm; Audrey Oravetz; Daniel Oravetz; Kaike Pan; Yingjie Peng; Marc H. Pinsonneault; Rick Pogge; Dan Qiu; Anna Barbara de Andrade Queiroz; Solange V. Ramirez; Hans-Walter Rix; Daniela Fernández Rosso; Jessie Runnoe; Mara Salvato; Sebastian F. Sanchez; Felipe A. Santana; Andrew Saydjari; Conor Sayres; Kevin C. Schlaufman; Donald P. Schneider; Axel Schwope; Javier Serna; Yue Shen; Jennifer Sobeck; Ying-Yi Song; Diogo Souto; Taylor Spoo; Keivan G. Stassun; Matthias Steinmetz; Ilya Straumit; Guy Stringfellow; José Sánchez-Gallego; Manuchehr Taghizadeh-Popp; Jamie Tayar; Ani Thakar; Patricia B. Tissera; Andrew Tkachenko; Hector Hernandez Toledo; Benny Trakhtenbrot; Jose G. Fernandez Trincado; Nicholas Troup; Jonathan R. Trump; Sarah Tuttle; Natalie Ulloa; Jose Antonio Vazquez-Mata; Pablo Vera Alfaro; Sandro Villanova; Stefanie Wachter; Anne-Marie Weijmans; Adam Wheeler; Leigh Wojno; Julien Wolf; Xiang-Xiang Xue; Jason E. Ybarra; Eleonora Zari; Gail Zasowski

doi:10.48550/arXiv.2301.07688

The eighteenth data release of the Sloan Digital Sky Surveys: targeting and first spectra from SDSS-V

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. CarlbergAndrew R. Casey, Vedant Chandra, Brian Cherinka, Cristina Chiappini, Abigail A. Coker, Johan Comparat, Charlie Conroy, Gabriella Contardo, Arlin Cortes, Kevin Covey, Jeffrey D. Crane, Katia Cunha, Collin Dabbieri, James W., Jr. Davidson, Megan C. Davis, Nathan De Lee, José Eduardo Méndez Delgado, Sebastian Demasi, Francesco Di Mille, John Donor, Peter Dow, Tom Dwelly, Mike Eracleous, Jamey Eriksen, Xiaohui Fan, Emily Farr, Sara Frederick, Logan Fries, Peter Frinchaboy, Boris T. Gaensicke, Junqiang Ge, Consuelo González Ávila, Katie Grabowski, Catherine Grier, Guillaume Guiglion, Pramod Gupta, Patrick Hall, Keith Hawkins, Christian R. Hayes, J. J. Hermes, Lorena Hernández-García, David W. Hogg, Jon A. Holtzman, Hector Javier Ibarra-Medel, Alexander Ji, Paula Jofre, Jennifer A. Johnson, Amy M. Jones, Karen Kinemuchi, Matthias Kluge, Anton Koekemoer, Juna A. Kollmeier, Marina Kounkel, Dhanesh Krishnarao, Mirko Krumpe, Ivan Lacerna, Paulo Jakson Assuncao Lago, Chervin Laporte, Ang Liu, Chao Liu, Xin Liu, Alexandre Roman Lopes, Matin Macktoobian, Viktor Malanushenko, Dan Maoz, Thomas Masseron, Karen L. Masters, Gal Matijevic, Aidan McBride, Ilija Medan, Andrea Merloni, Sean Morrison, Natalie Myers, Szabolcs Mészáros, C. Alenka Negrete, David L. Nidever, Christian Nitschelm, Audrey Oravetz, Daniel Oravetz, Kaike Pan, Yingjie Peng, Marc H. Pinsonneault, Rick Pogge, Dan Qiu, Anna Barbara de Andrade Queiroz, Solange V. Ramirez, Hans-Walter Rix, Daniela Fernández Rosso, Jessie Runnoe, Mara Salvato, Sebastian F. Sanchez, Felipe A. Santana, Andrew Saydjari, Conor Sayres, Kevin C. Schlaufman, Donald P. Schneider, Axel Schwope, Javier Serna, Yue Shen, Jennifer Sobeck, Ying-Yi Song, Diogo Souto, Taylor Spoo, Keivan G. Stassun, Matthias Steinmetz, Ilya Straumit, Guy Stringfellow, José Sánchez-Gallego, Manuchehr Taghizadeh-Popp, Jamie Tayar, Ani Thakar, Patricia B. Tissera, Andrew Tkachenko, Hector Hernandez Toledo, Benny Trakhtenbrot, Jose G. Fernandez Trincado, Nicholas Troup, Jonathan R. Trump, Sarah Tuttle, Natalie Ulloa, Jose Antonio Vazquez-Mata, Pablo Vera Alfaro, Sandro Villanova, Stefanie Wachter, Anne-Marie Weijmans, Adam Wheeler, Leigh Wojno, Julien Wolf, Xiang-Xiang Xue, Jason E. Ybarra, Eleonora Zari, Gail Zasowski^*

^*Corresponding author for this work

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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	https://doi.org/10.48550/arXiv.2301.07688 https://doi.org/10.3847/1538-4365/acda98
Publication status	Published - 8 Aug 2023

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10.48550/arXiv.2301.07688Licence: CC BY
10.3847/1538-4365/acda98Licence: CC BY

Almeida_2023_ApJS_Eighteenth-data-release_CC
Copyright © 2023. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Final published version, 2.01 MBLicence: CC BY

SDSS-V Data Release 18 (DR18)
Weijmans, A.-M. (Creator), Sloan Digital Sky Survey (SDSS), 19 Jan 2023
https://www.sdss.org/dr18
Dataset

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Almeida, A., Anderson, S. F., Argudo-Fernández, M., Badenes, C., Barger, K., Barrera-Ballesteros, J. K., Bender, C. F., Benitez, E., Besser, F., Bizyaev, D., Blanton, M. R., Bochanski, J., Bovy, J., Brandt, W. N., Brownstein, J. R., Buchner, J., Bulbul, E., Burchett, J. N., Cano Díaz, M., ... Zasowski, G. (2023). The eighteenth data release of the Sloan Digital Sky Surveys: targeting and first spectra from SDSS-V. Astrophysical Journal Supplement Series, 267(2), Article 44. https://doi.org/10.48550/arXiv.2301.07688, https://doi.org/10.3847/1538-4365/acda98

@article{81cfcea076a348f9a97836f88e7bb6f9,

title = "The eighteenth data release of the Sloan Digital Sky Surveys: targeting and first spectra from SDSS-V",

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.",

author = "Andr{\'e}s Almeida and Anderson, {Scott F.} and Maria Argudo-Fern{\'a}ndez and Carles Badenes and Kat Barger and Barrera-Ballesteros, {Jorge K.} and Bender, {Chad F.} and Erika Benitez and Felipe Besser and Dmitry Bizyaev and Blanton, {Michael R.} and John Bochanski and Jo Bovy and Brandt, {William Nielsen} and Brownstein, {Joel R.} and Johannes Buchner and Esra Bulbul and Burchett, {Joseph N.} and {Cano D{\'i}az}, Mariana and Carlberg, {Joleen K.} and Casey, {Andrew R.} and Vedant Chandra and Brian Cherinka and Cristina Chiappini and Coker, {Abigail A.} and Johan Comparat and Charlie Conroy and Gabriella Contardo and Arlin Cortes and Kevin Covey and Crane, {Jeffrey D.} and Katia Cunha and Collin Dabbieri and Davidson, {James W., Jr.} and Davis, {Megan C.} and {De Lee}, Nathan and {M{\'e}ndez Delgado}, {Jos{\'e} Eduardo} and Sebastian Demasi and {Di Mille}, Francesco and John Donor and Peter Dow and Tom Dwelly and Mike Eracleous and Jamey Eriksen and Xiaohui Fan and Emily Farr and Sara Frederick and Logan Fries and Peter Frinchaboy and Gaensicke, {Boris T.} and Junqiang Ge and {Gonz{\'a}lez {\'A}vila}, Consuelo and Katie Grabowski and Catherine Grier and Guillaume Guiglion and Pramod Gupta and Patrick Hall and Keith Hawkins and Hayes, {Christian R.} and Hermes, {J. J.} and Lorena Hern{\'a}ndez-Garc{\'i}a and Hogg, {David W.} and Holtzman, {Jon A.} and Ibarra-Medel, {Hector Javier} and Alexander Ji and Paula Jofre and Johnson, {Jennifer A.} and Jones, {Amy M.} and Karen Kinemuchi and Matthias Kluge and Anton Koekemoer and Kollmeier, {Juna A.} and Marina Kounkel and Dhanesh Krishnarao and Mirko Krumpe and Ivan Lacerna and {Jakson Assuncao Lago}, Paulo and Chervin Laporte and Ang Liu and Chao Liu and Xin Liu and Lopes, {Alexandre Roman} and Matin Macktoobian and Viktor Malanushenko and Dan Maoz and Thomas Masseron and Masters, {Karen L.} and Gal Matijevic and Aidan McBride and Ilija Medan and Andrea Merloni and Sean Morrison and Natalie Myers and Szabolcs M{\'e}sz{\'a}ros and Negrete, {C. Alenka} and Nidever, {David L.} and Christian Nitschelm and Audrey Oravetz and Daniel Oravetz and Kaike Pan and Yingjie Peng and Pinsonneault, {Marc H.} and Rick Pogge and Dan Qiu and Queiroz, {Anna Barbara de Andrade} and Ramirez, {Solange V.} and Hans-Walter Rix and {Fern{\'a}ndez Rosso}, Daniela and Jessie Runnoe and Mara Salvato and Sanchez, {Sebastian F.} and Santana, {Felipe A.} and Andrew Saydjari and Conor Sayres and Schlaufman, {Kevin C.} and Schneider, {Donald P.} and Axel Schwope and Javier Serna and Yue Shen and Jennifer Sobeck and Ying-Yi Song and Diogo Souto and Taylor Spoo and Stassun, {Keivan G.} and Matthias Steinmetz and Ilya Straumit and Guy Stringfellow and Jos{\'e} S{\'a}nchez-Gallego and Manuchehr Taghizadeh-Popp and Jamie Tayar and Ani Thakar and Tissera, {Patricia B.} and Andrew Tkachenko and {Hernandez Toledo}, Hector and Benny Trakhtenbrot and {Fernandez Trincado}, {Jose G.} and Nicholas Troup and Trump, {Jonathan R.} and Sarah Tuttle and Natalie Ulloa and Vazquez-Mata, {Jose Antonio} and Alfaro, {Pablo Vera} and Sandro Villanova and Stefanie Wachter and Anne-Marie Weijmans and Adam Wheeler and Leigh Wojno and Julien Wolf and Xiang-Xiang Xue and Ybarra, {Jason E.} and Eleonora Zari and Gail Zasowski",

year = "2023",

month = aug,

day = "8",

doi = "10.48550/arXiv.2301.07688",

language = "English",

volume = "267",

journal = "Astrophysical Journal Supplement Series",

issn = "0067-0049",

publisher = "American Astronomical Society",

number = "2",

}

Almeida, A, Anderson, SF, Argudo-Fernández, M, Badenes, C, Barger, K, Barrera-Ballesteros, JK, Bender, CF, Benitez, E, Besser, F, Bizyaev, D, Blanton, MR, Bochanski, J, Bovy, J, Brandt, WN, Brownstein, JR, Buchner, J, Bulbul, E, Burchett, JN, Cano Díaz, M, Carlberg, JK, Casey, AR, Chandra, V, Cherinka, B, Chiappini, C, Coker, AA, Comparat, J, Conroy, C, Contardo, G, Cortes, A, Covey, K, Crane, JD, Cunha, K, Dabbieri, C, Davidson, JWJ, Davis, MC, De Lee, N, Méndez Delgado, JE, Demasi, S, Di Mille, F, Donor, J, Dow, P, Dwelly, T, Eracleous, M, Eriksen, J, Fan, X, Farr, E, Frederick, S, Fries, L, Frinchaboy, P, Gaensicke, BT, Ge, J, González Ávila, C, Grabowski, K, Grier, C, Guiglion, G, Gupta, P, Hall, P, Hawkins, K, Hayes, CR, Hermes, JJ, Hernández-García, L, Hogg, DW, Holtzman, JA, Ibarra-Medel, HJ, Ji, A, Jofre, P, Johnson, JA, Jones, AM, Kinemuchi, K, Kluge, M, Koekemoer, A, Kollmeier, JA, Kounkel, M, Krishnarao, D, Krumpe, M, Lacerna, I, Jakson Assuncao Lago, P, Laporte, C, Liu, A, Liu, C, Liu, X, Lopes, AR, Macktoobian, M, Malanushenko, V, Maoz, D, Masseron, T, Masters, KL, Matijevic, G, McBride, A, Medan, I, Merloni, A, Morrison, S, Myers, N, Mészáros, S, Negrete, CA, Nidever, DL, Nitschelm, C, Oravetz, A, Oravetz, D, Pan, K, Peng, Y, Pinsonneault, MH, Pogge, R, Qiu, D, Queiroz, ABDA, Ramirez, SV, Rix, H-W, Fernández Rosso, D, Runnoe, J, Salvato, M, Sanchez, SF, Santana, FA, Saydjari, A, Sayres, C, Schlaufman, KC, Schneider, DP, Schwope, A, Serna, J, Shen, Y, Sobeck, J, Song, Y-Y, Souto, D, Spoo, T, Stassun, KG, Steinmetz, M, Straumit, I, Stringfellow, G, Sánchez-Gallego, J, Taghizadeh-Popp, M, Tayar, J, Thakar, A, Tissera, PB, Tkachenko, A, Hernandez Toledo, H, Trakhtenbrot, B, Fernandez Trincado, JG, Troup, N, Trump, JR, Tuttle, S, Ulloa, N, Vazquez-Mata, JA, Alfaro, PV, Villanova, S, Wachter, S, Weijmans, A-M, Wheeler, A, Wojno, L, Wolf, J, Xue, X-X, Ybarra, JE, Zari, E & Zasowski, G 2023, 'The eighteenth data release of the Sloan Digital Sky Surveys: targeting and first spectra from SDSS-V', Astrophysical Journal Supplement Series, vol. 267, no. 2, 44. https://doi.org/10.48550/arXiv.2301.07688, https://doi.org/10.3847/1538-4365/acda98

TY - JOUR

T1 - The eighteenth data release of the Sloan Digital Sky Surveys

T2 - targeting and first spectra from SDSS-V

AU - Almeida, Andrés

AU - Anderson, Scott F.

AU - Argudo-Fernández, Maria

AU - Badenes, Carles

AU - Barger, Kat

AU - Barrera-Ballesteros, Jorge K.

AU - Bender, Chad F.

AU - Benitez, Erika

AU - Besser, Felipe

AU - Bizyaev, Dmitry

AU - Blanton, Michael R.

AU - Bochanski, John

AU - Bovy, Jo

AU - Brandt, William Nielsen

AU - Brownstein, Joel R.

AU - Buchner, Johannes

AU - Bulbul, Esra

AU - Burchett, Joseph N.

AU - Cano Díaz, Mariana

AU - Carlberg, Joleen K.

AU - Casey, Andrew R.

AU - Chandra, Vedant

AU - Cherinka, Brian

AU - Chiappini, Cristina

AU - Coker, Abigail A.

AU - Comparat, Johan

AU - Conroy, Charlie

AU - Contardo, Gabriella

AU - Cortes, Arlin

AU - Covey, Kevin

AU - Crane, Jeffrey D.

AU - Cunha, Katia

AU - Dabbieri, Collin

AU - Davidson, James W., Jr.

AU - Davis, Megan C.

AU - De Lee, Nathan

AU - Méndez Delgado, José Eduardo

AU - Demasi, Sebastian

AU - Di Mille, Francesco

AU - Donor, John

AU - Dow, Peter

AU - Dwelly, Tom

AU - Eracleous, Mike

AU - Eriksen, Jamey

AU - Fan, Xiaohui

AU - Farr, Emily

AU - Frederick, Sara

AU - Fries, Logan

AU - Frinchaboy, Peter

AU - Gaensicke, Boris T.

AU - Ge, Junqiang

AU - González Ávila, Consuelo

AU - Grabowski, Katie

AU - Grier, Catherine

AU - Guiglion, Guillaume

AU - Gupta, Pramod

AU - Hall, Patrick

AU - Hawkins, Keith

AU - Hayes, Christian R.

AU - Hermes, J. J.

AU - Hernández-García, Lorena

AU - Hogg, David W.

AU - Holtzman, Jon A.

AU - Ibarra-Medel, Hector Javier

AU - Ji, Alexander

AU - Jofre, Paula

AU - Johnson, Jennifer A.

AU - Jones, Amy M.

AU - Kinemuchi, Karen

AU - Kluge, Matthias

AU - Koekemoer, Anton

AU - Kollmeier, Juna A.

AU - Kounkel, Marina

AU - Krishnarao, Dhanesh

AU - Krumpe, Mirko

AU - Lacerna, Ivan

AU - Jakson Assuncao Lago, Paulo

AU - Laporte, Chervin

AU - Liu, Ang

AU - Liu, Chao

AU - Liu, Xin

AU - Lopes, Alexandre Roman

AU - Macktoobian, Matin

AU - Malanushenko, Viktor

AU - Maoz, Dan

AU - Masseron, Thomas

AU - Masters, Karen L.

AU - Matijevic, Gal

AU - McBride, Aidan

AU - Medan, Ilija

AU - Merloni, Andrea

AU - Morrison, Sean

AU - Myers, Natalie

AU - Mészáros, Szabolcs

AU - Negrete, C. Alenka

AU - Nidever, David L.

AU - Nitschelm, Christian

AU - Oravetz, Audrey

AU - Oravetz, Daniel

AU - Pan, Kaike

AU - Peng, Yingjie

AU - Pinsonneault, Marc H.

AU - Pogge, Rick

AU - Qiu, Dan

AU - Queiroz, Anna Barbara de Andrade

AU - Ramirez, Solange V.

AU - Rix, Hans-Walter

AU - Fernández Rosso, Daniela

AU - Runnoe, Jessie

AU - Salvato, Mara

AU - Sanchez, Sebastian F.

AU - Santana, Felipe A.

AU - Saydjari, Andrew

AU - Sayres, Conor

AU - Schlaufman, Kevin C.

AU - Schneider, Donald P.

AU - Schwope, Axel

AU - Serna, Javier

AU - Shen, Yue

AU - Sobeck, Jennifer

AU - Song, Ying-Yi

AU - Souto, Diogo

AU - Spoo, Taylor

AU - Stassun, Keivan G.

AU - Steinmetz, Matthias

AU - Straumit, Ilya

AU - Stringfellow, Guy

AU - Sánchez-Gallego, José

AU - Taghizadeh-Popp, Manuchehr

AU - Tayar, Jamie

AU - Thakar, Ani

AU - Tissera, Patricia B.

AU - Tkachenko, Andrew

AU - Hernandez Toledo, Hector

AU - Trakhtenbrot, Benny

AU - Fernandez Trincado, Jose G.

AU - Troup, Nicholas

AU - Trump, Jonathan R.

AU - Tuttle, Sarah

AU - Ulloa, Natalie

AU - Vazquez-Mata, Jose Antonio

AU - Alfaro, Pablo Vera

AU - Villanova, Sandro

AU - Wachter, Stefanie

AU - Weijmans, Anne-Marie

AU - Wheeler, Adam

AU - Wojno, Leigh

AU - Wolf, Julien

AU - Xue, Xiang-Xiang

AU - Ybarra, Jason E.

AU - Zari, Eleonora

AU - Zasowski, Gail

PY - 2023/8/8

Y1 - 2023/8/8

N2 - 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.

AB - 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.

U2 - 10.48550/arXiv.2301.07688

DO - 10.48550/arXiv.2301.07688

M3 - Article

SN - 0067-0049

VL - 267

JO - Astrophysical Journal Supplement Series

JF - Astrophysical Journal Supplement Series

IS - 2

M1 - 44

ER -

The eighteenth data release of the Sloan Digital Sky Surveys: targeting and first spectra from SDSS-V

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SDSS-V Data Release 18 (DR18)

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