The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory
Authors: Albareti Franco D. , Prieto Carlos Allende , Almeida Andres , Anders Friedrich , Anderson Scott , Andrews Brett H. , Aragón-Salamanca Alfonso , Argudo-Fernández Maria , Armengaud Eric , Aubourg Eric , Avila-Reese Vladimir , Badenes Carles , Bailey Stephen , Barbuy Beatriz , Barger Kat , Barrera-Ballesteros Jorge , Bartosz Curtis , Basu Sarbani , Bates Dominic , Battaglia Giuseppina , Baumgarten Falk , Baur Julien , Bautista Julian , Beers Timothy C. , Belfiore Francesco , Bershady Matthew , de Lis Sara Bertran , Bird Jonathan C. , Bizyaev Dmitry , Blanc Guillermo A. , Blanton Michael , Blomqvist Michael , Bolton Adam S. , Borissova J. , Bovy Jo , Brandt William Nielsen , Brinkmann Jonathan , Brownstein Joel R. , Bundy Kevin , Burtin Etienne , Busca Nicolás G. , Chavez Hugo Orlando Camacho , Díaz M. Cano , Cappellari Michele , Carrera Ricardo , Chen Yanping , Cherinka Brian , Cheung Edmond , Chiappini Cristina , Chojnowski Drew , Chuang Chia-Hsun , Chung Haeun , Cirolini Rafael Fernando , Clerc Nicolas , Cohen Roger E. , Comerford Julia M. , Comparat Johan , Correa do Nascimento Janaina , Cousinou Marie-Claude , Covey Kevin , Crane Jeffrey D. , Croft Rupert , Cunha Katia , Darling Jeremy , Davidson James W. , Dawson Kyle , Da Costa Luiz , Da Silva Ilha Gabriele , Machado Alice Deconto , Delubac Timothée , De Lee Nathan , De la Macorra Axel , De la Torre Sylvain , Diamond-Stanic Aleksandar M. , Donor John , Downes Juan Jose , Drory Niv , Du Cheng , Du Mas des Bourboux Hélion , Dwelly Tom , Ebelke Garrett , Eigenbrot Arthur , Eisenstein Daniel J. , Elsworth Yvonne P. , Emsellem Eric , Eracleous Michael , Escoffier Stephanie , Evans Michael L. , Falcón-Barroso Jesús , Fan Xiaohui , Favole Ginevra , Fernandez-Alvar Emma , Fernandez-Trincado J. G. , Feuillet Diane , Fleming Scott W. , Font-Ribera Andreu , Freischlad Gordon , Frinchaboy Peter , Fu Hai , Gao 高 Yang 扬 , Garcia Rafael A. , Garcia-Dias R. , Garcia-Hernández D. A. , Pérez Ana E. Garcia , Gaulme Patrick , Ge Junqiang , Geisler Douglas , Gillespie Bruce , Marin Hector Gil , Girardi Léo , Goddard Daniel , Chew Yilen Gomez Maqueo , Gonzalez-Perez Violeta , Grabowski Kathleen , Green Paul , Grier Catherine J. , Grier Thomas , Guo Hong , Guy Julien , Hagen Alex , Hall Matt , Harding Paul , Harley R. E. , Hasselquist Sten , Hawley Suzanne , Hayes Christian R. , Hearty Fred , Hekker Saskia , Toledo Hector Hernandez , Ho Shirley , Hogg David W. , Holley-Bockelmann Kelly , Holtzman Jon A. , Holzer Parker H. , Hu 胡 Jian 剑 , Huber Daniel , Hutchinson Timothy Alan , Hwang Ho Seong , Ibarra-Medel Héctor J. , Ivans Inese I. , Ivory KeShawn , Jaehnig Kurt , Jensen Trey W. , Johnson Jennifer A. , Jones Amy , Jullo Eric , Kallinger T. , Kinemuchi Karen , Kirkby David , Klaene Mark , Kneib Jean-Paul , Kollmeier Juna A. , Lacerna Ivan , Lane Richard R. , Lang Dustin , Laurent Pierre , Law David R. , Leauthaud Alexie , Le Goff Jean-Marc , Li Chen , Li Cheng , Li Niu , Li Ran , Liang 梁 Fu-Heng 赋珩 , Liang Yu , Lima Marcos , Lin 林 Lihwai 俐暉 , Lin 林 Lin 琳 , Lin 林 Yen-Ting 彥廷 , Liu Chao , Long Dan , Lucatello Sara , MacDonald Nicholas , MacLeod Chelsea L. , Mackereth J. Ted , Mahadevan Suvrath , Maia Marcio Antonio Geimba , Maiolino Roberto , Majewski Steven R. , Malanushenko Olena , Malanushenko Viktor , Mallmann Nícolas Dullius , Manchado Arturo , Maraston Claudia , Marques-Chaves Rui , Valpuesta Inma Martinez , Masters Karen L. , Mathur Savita , McGreer Ian D. , Merloni Andrea , Merrifield Michael R. , Meszáros Szabolcs , Meza Andres , Miglio Andrea , Minchev Ivan , Molaverdikhani Karan , Montero-Dorta Antonio D. , Mosser Benoit , Muna Demitri , Myers Adam , Nair Preethi , Nandra Kirpal , Ness Melissa , Newman Jeffrey A. , Nichol Robert C. , Nidever David L. , Nitschelm Christian , O’Connell Julia , Oravetz Audrey , Oravetz Daniel J. , Pace Zachary , Padilla Nelson , Palanque-Delabrouille Nathalie , Pan Kaike , Parejko John , Paris Isabelle , Park Changbom , Peacock John A. , Peirani Sebastien , Pellejero-Ibanez Marcos , Penny Samantha , Percival Will J. , Percival Jeffrey W. , Perez-Fournon Ismael , Petitjean Patrick , Pieri Matthew , Pinsonneault Marc H. , Pisani Alice , Prada Francisco , Prakash Abhishek , Price-Jones Natalie , Raddick M. Jordan , Rahman Mubdi , Raichoor Anand , Rembold Sandro Barboza , Reyna A. M. , Rich James , Richstein Hannah , Ridl Jethro , Riffel Rogemar A. , Riffel Rogério , Rix Hans-Walter , Robin Annie C. , Rockosi Constance M. , Rodríguez-Torres Sergio , Rodrigues Thaíse S. , Roe Natalie , Lopes A. Roman , Román-Zúñiga Carlos , Ross Ashley J. , Rossi Graziano , Ruan John , Ruggeri Rossana , Runnoe Jessie C. , Salazar-Albornoz Salvador , Salvato Mara , Sanchez Sebastian F. , Sanchez Ariel G. , Sanchez-Gallego José R. , Santiago Basílio Xavier , Schiavon Ricardo , Schimoia Jaderson S. , Schlafly Eddie , Schlegel David J. , Schneider Donald P. , Schönrich Ralph , Schultheis Mathias , Schwope Axel , Seo Hee-Jong , Serenelli Aldo , Sesar Branimir , Shao Zhengyi , Shetrone Matthew , Shull Michael , Aguirre Victor Silva , Skrutskie M. F. , Slosar Anže , Smith Michael , Smith Verne V. , Sobeck Jennifer , Somers Garrett , Souto Diogo , Stark David V. , Stassun Keivan G. , Steinmetz Matthias , Stello Dennis , Bergmann Thaisa Storchi , Strauss Michael A. , Streblyanska Alina , Stringfellow Guy S. , Suarez Genaro , Sun Jing , Taghizadeh-Popp Manuchehr , Tang Baitian , Tao Charling , Tayar Jamie , Tembe Mita , Thomas Daniel , Tinker Jeremy , Tojeiro Rita , Tremonti Christy , Troup Nicholas , Trump Jonathan R. , Unda-Sanzana Eduardo , Valenzuela O. , Van den Bosch Remco , Vargas-Magaña Mariana , Vazquez Jose Alberto , Villanova Sandro , Vivek M. , Vogt Nicole , Wake David , Walterbos Rene , Wang Yuting , Wang Enci , Weaver Benjamin Alan , Weijmans Anne-Marie , Weinberg David H. , Westfall Kyle B. , Whelan David G. , Wilcots Eric , Wild Vivienne , Williams Rob A. , Wilson John , Wood-Vasey W. M. , Wylezalek Dominika , Xiao 肖 Ting 婷 , Yan Renbin , Yang Meng , Ybarra Jason E. , Yeche Christophe , Yuan Fang-Ting , Zakamska Nadia , Zamora Olga , Zasowski Gail , Zhang Kai , Zhao Cheng , Zhao Gong-Bo , Zheng Zheng , Zheng Zheng , Zhou Zhi-Min , Zhu Guangtun , Zinn Joel C. , Zou Hu 
Published: December 2017

Abstract
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in 2014 July. It pursues three core programs: the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2), Mapping Nearby Galaxies at APO (MaNGA), and the Extended Baryon Oscillation Spectroscopic Survey (eBOSS). As well as its core program, eBOSS contains two major subprograms: the Time Domain Spectroscopic Survey (TDSS) and the SPectroscopic IDentification of ERosita Sources (SPIDERS). This paper describes the first data release from SDSS-IV, Data Release 13 (DR13). DR13 makes publicly available the first 1390 spatially resolved integral field unit observations of nearby galaxies from MaNGA. It includes new observations from eBOSS, completing the Sloan Extended QUasar, Emission-line galaxy, Luminous red galaxy Survey (SEQUELS), which also targeted variability-selected objects and X-ray-selected objects. DR13 includes new reductions of the SDSS-III BOSS data, improving the spectrophotometric calibration and redshift classification, and new reductions of the SDSS-III APOGEE-1 data, improving stellar parameters for dwarf stars and cooler stars. DR13 provides more robust and precise photometric calibrations. Value-added target catalogs relevant for eBOSS, TDSS, and SPIDERS and an updated red-clump catalog for APOGEE are also available. This paper describes the location and format of the data and provides references to important technical papers. The SDSS web site, http://www.sdss.org, provides links to the data, tutorials, examples of data access, and extensive documentation of the reduction and analysis procedures. DR13 is the first of a scheduled set that will contain new data and analyses from the planned ∼6 yr operations of SDSS-IV.