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The Apache Point Observatory Galactic Evolution Experiment (APOGEE), part of the Sloan Digital Sky Survey III, explores the stellar populations of the Milky Way using the Sloan 2.5-m telescope linked to a high resolution (R~22,500),…

APOGEE is a large-scale, NIR, high-resolution (R~20,000) spectroscopic survey of Galactic stars. It is one of the four experiments in SDSS-III. Because APOGEE will observe in the H band, it will be the first survey to pierce through…

We describe the design and performance of the near-infrared (1.51--1.70 micron), fiber-fed, multi-object (300 fibers), high resolution (R = lambda/delta lambda ~ 22,500) spectrograph built for the Apache Point Observatory Galactic Evolution…

The Sloan Digital Sky Survey III/Apache Point Observatory Galactic Evolution Experiment (SDSS-III/APOGEE) is a large-scale spectroscopic survey of Galactic stars and star clusters. The SDSS-III/APOGEE survey is designed to produce high-S/N,…

We are posting this 10-year-old white paper to support an upcoming survey description paper for the SDSS-III Apache Point Galactic Evolution Experiment (APOGEE) led by PI Dr. Steven Majewski. The white paper presented here was a…

Instrumentation and Methods for Astrophysics · Physics 2015-04-01 Michael F. Skrutskie , John C. Wilson

The Sloan Digital Sky Survey (SDSS) has been in operation since 2000 April. This paper presents the tenth public data release (DR10) from its current incarnation, SDSS-III. This data release includes the first spectroscopic data from the…

Instrumentation and Methods for Astrophysics · Physics 2015-06-16 Christopher P. Ahn , Rachael Alexandroff , Carlos Allende Prieto , Friedrich Anders , Scott F. Anderson , Timothy Anderton , Brett H. Andrews , Éric Aubourg , Stephen Bailey , Fabienne A. Bastien , Julian E. Bautista , Timothy C. Beers , Alessandra Beifiori , Chad F. Bender , Andreas A. Berlind , Florian Beutler , Vaishali Bhardwaj , Jonathan C. Bird , Dmitry Bizyaev , Cullen H. Blake , Michael R. Blanton , Michael Blomqvist , John J. Bochanski , Adam S. Bolton , Arnaud Borde , Jo Bovy , Alaina Shelden Bradley , W. N. Brandt , Dorothée Brauer , J. Brinkmann , Joel R. Brownstein , Nicolás G. Busca , William Carithers , Joleen K. Carlberg , Aurelio R. Carnero , Michael A. Carr , Cristina Chiappini , S. Drew Chojnowski , Chia-Hsun Chuang , Johan Comparat , Justin R. Crepp , Stefano Cristiani , Rupert A. C. Croft , Antonio J. Cuesta , Katia Cunha , Luiz N. da Costa , Kyle S. Dawson , Nathan De Lee , Janice D. R. Dean , Timothée Delubac , Rohit Deshpande , Saurav Dhital , Anne Ealet , Garrett L. Ebelke , Edward M. Edmondson , Daniel J. Eisenstein , Courtney R. Epstein , Stephanie Escoffier , Massimiliano Esposito , Michael L. Evans , D. Fabbian , Xiaohui Fan , Ginevra Favole , Bruno Femenía Castellá , Emma Fernández Alvar , Diane Feuillet , Nurten Filiz Ak , Hayley Finley , Scott W. Fleming , Andreu Font-Ribera , Peter M. Frinchaboy , J. G. Galbraith-Frew , D. A. García-Hernández , Ana E. García Pérez , Jian Ge , R. Génova-Santos , Bruce A. Gillespie , Léo Girardi , Jonay I. González Hernández , J. Richard Gott , James E. Gunn , Hong Guo , Samuel Halverson , Paul Harding , David W. Harris , Sten Hasselquist , Suzanne L. Hawley , Michael Hayden , Frederick R. Hearty , Artemio Herrero Davó , Shirley Ho , David W. Hogg , Jon A. Holtzman , Klaus Honscheid , Joseph Huehnerhoff , Inese I. Ivans , Kelly M. Jackson , Peng Jiang , Jennifer A. Johnson , David Kirkby , K. Kinemuchi , Mark A. Klaene , Jean-Paul Kneib , Lars Koesterke , Ting-Wen Lan , Dustin Lang , Jean-Marc Le Goff , Khee-Gan Lee , Young Sun Lee , Daniel C. Long , Craig P. Loomis , Sara Lucatello , Robert H. Lupton , Bo Ma , Claude E. Mack , Suvrath Mahadevan , Marcio A. G. Maia , Steven R. Majewski , Elena Malanushenko , Viktor Malanushenko , A. Manchado , Marc Manera , Claudia Maraston , Daniel Margala , Sarah L. Martell , Karen L. Masters , Cameron K. McBride , Ian D. McGreer , Richard G. McMahon , Brice Ménard , Sz. Mészáros , Jordi Miralda-Escudé , Hironao Miyatake , Antonio D. Montero-Dorta , Francesco Montesano , Surhud More , Heather L. Morrison , Demitri Muna , Jeffrey A. Munn , Adam D. Myers , Duy Cuong Nguyen , Robert C. Nichol , David L. Nidever , Pasquier Noterdaeme , Sebastián E. Nuza , Julia E. O'Connell , Robert W. O'Connell , Ross O'Connell , Matthew D. Olmstead , Daniel J. Oravetz , Russell Owen , Nikhil Padmanabhan , Nathalie Palanque-Delabrouille , Kaike Pan , John K. Parejko , Isabelle Pâris , Joshua Pepper , Will J. Percival , Ignasi Pérez-Ràfols , Hélio Dotto Perottoni , Patrick Petitjean , Matthew M. Pieri , M. H. Pinsonneault , Francisco Prada , Adrian M. Price-Whelan , M. Jordan Raddick , Mubdi Rahman , Rafael Rebolo , Beth A. Reid , Jonathan C. Richards , Rogério Riffel , Annie C. Robin , H. J. Rocha-Pinto , Constance M. Rockosi , Natalie A. Roe , Ashley J. Ross , Nicholas P. Ross , Graziano Rossi , Arpita Roy , J. A. Rubiño-Martin , Cristiano G. Sabiu , Ariel G. Sánchez , Basílio Santiago , Conor Sayres , Ricardo P. Schiavon , David J. Schlegel , Katharine J. Schlesinger , Sarah J. Schmidt , Donald P. Schneider , Mathias Schultheis , Kris Sellgren , Hee-Jong Seo , Yue Shen , Matthew Shetrone , Yiping Shu , Audrey E. Simmons , M. F. Skrutskie , Anže Slosar , Verne V. Smith , Stephanie A. Snedden , Jennifer S. Sobeck , Flavia Sobreira , Keivan G. Stassun , Matthias Steinmetz , Michael A. Strauss , Alina Streblyanska , Nao Suzuki , Molly E. C. Swanson , Ryan C. Terrien , Aniruddha R. Thakar , Daniel Thomas , Benjamin A. Thompson , Jeremy L. Tinker , Rita Tojeiro , Nicholas W. Troup , Jan Vandenberg , Mariana Vargas Magaña , Matteo Viel , Nicole P. Vogt , David A. Wake , Benjamin A. Weaver , David H. Weinberg , Benjamin J. Weiner , Martin White , Simon D. M. White , John C. Wilson , John P. Wisniewski , W. M. Wood-Vasey , Christophe Yèche , Donald G. York , O. Zamora , Gail Zasowski , Idit Zehavi , Zheng Zheng , Guangtun Zhu

We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars…

Astrophysics of Galaxies · Physics 2017-07-07 Michael R. Blanton , Matthew A. Bershady , Bela Abolfathi , Franco D. Albareti , Carlos Allende Prieto , Andres Almeida , Javier Alonso-García , Friedrich Anders , Scott F. Anderson , Brett Andrews , Erik Aquino-Ortíz , Alfonso Aragón-Salamanca , Maria Argudo-Fernández , Eric Armengaud , Eric Aubourg , Vladimir Avila-Reese , Carles Badenes , Stephen Bailey , Kathleen A. Barger , Jorge Barrera-Ballesteros , Curtis Bartosz , Dominic Bates , Falk Baumgarten , Julian Bautista , Rachael Beaton , Timothy C. Beers , Francesco Belfiore , Chad F. Bender , Andreas A. Berlind , Mariangela Bernardi , Florian Beutler , Jonathan C. Bird , Dmitry Bizyaev , Guillermo A. Blanc , Michael Blomqvist , Adam S. Bolton , Médéric Boquien , Jura Borissova , Remco van den Bosch , Jo Bovy , William N. Brandt , Jonathan Brinkmann , Joel R. Brownstein , Kevin Bundy , Adam J. Burgasser , Etienne Burtin , Nicolás G. Busca , Michele Cappellari , Maria Leticia Delgado Carigi , Joleen K. Carlberg , Aurelio Carnero Rosell , Ricardo Carrera , Brian Cherinka , Edmond Cheung , Yilen Gómez Maqueo Chew , Cristina Chiappini , Peter Doohyun Choi , Drew Chojnowski , Chia-Hsun Chuang , Haeun Chung , Rafael Fernando Cirolini , Nicolas Clerc , Roger E. Cohen , Johan Comparat , Luiz da Costa , Marie-Claude Cousinou , Kevin Covey , Jeffrey D. Crane , Rupert A. C. Croft , Irene Cruz-Gonzalez , Daniel Garrido Cuadra , Katia Cunha , Guillermo J. Damke , Jeremy Darling , Roger Davies , Kyle Dawson , Axel de la Macorra , Nathan De Lee , Timothée Delubac , Francesco Di Mille , Aleks Diamond-Stanic , Mariana Cano-Díaz , John Donor , Juan José Downes , Niv Drory , Hélion du Mas des Bourboux , Christopher J. Duckworth , Tom Dwelly , Jamie Dyer , Garrett Ebelke , Daniel J. Eisenstein , Eric Emsellem , Mike Eracleous , Stephanie Escoffier , Michael L. Evans , Xiaohui Fan , Emma Fernández-Alvar , J. G. Fernandez-Trincado , Diane K. Feuillet , Alexis Finoguenov , Scott W. Fleming , Andreu Font-Ribera , Alexander Fredrickson , Gordon Freischlad , Peter M. Frinchaboy , Lluís Galbany , R. Garcia-Dias , D. A. García-Hernández , Patrick Gaulme , Doug Geisler , Joseph D. Gelfand , Héctor Gil-Marín , Bruce A. Gillespie , Daniel Goddard , Violeta Gonzalez-Perez , Kathleen Grabowski , Paul J. Green , Catherine J. Grier , James E. Gunn , Hong Guo , Julien Guy , Alex Hagen , ChangHoon Hahn , Matthew Hall , Paul Harding , Sten Hasselquist , Suzanne L. Hawley , Fred Hearty , Jonay I. Gonzalez Hernández , Shirley Ho , David W. Hogg , Kelly Holley-Bockelmann , Jon A. Holtzman , Parker H. Holzer , Joseph Huehnerhoff , Timothy A. Hutchinson , Ho Seong Hwang , Héctor J. Ibarra-Medel , Gabriele da Silva Ilha , Inese I. Ivans , KeShawn Ivory , Kelly Jackson , Trey W. Jensen , Jennifer A. Johnson , Amy Jones , Henrik Jönsson , Eric Jullo , Vikrant Kamble , Karen Kinemuchi , David Kirkby , Francisco-Shu Kitaura , Mark Klaene , Gillian R. Knapp , Jean-Paul Kneib , Juna A. Kollmeier , Ivan Lacerna , Richard R. Lane , Dustin Lang , David R. Law , Daniel Lazarz , Jean-Marc Le Goff , Fu-Heng Liang , Cheng Li , Hongyu LI , Marcos Lima , Lihwai Lin , Yen-Ting Lin , Sara Bertran de Lis , Chao Liu , Miguel Angel C. de Icaza Lizaola , Dan Long , Sara Lucatello , Britt Lundgren , Nicholas K. MacDonald , Alice Deconto Machado , Chelsea L. MacLeod , Suvrath Mahadevan , Marcio Antonio Geimba Maia , Roberto Maiolino , Steven R. Majewski , Elena Malanushenko , Viktor Malanushenko , Arturo Manchado , Shude Mao , Claudia Maraston , Rui Marques-Chaves , Karen L. Masters , Cameron K. McBride , Richard M. McDermid , Brianne McGrath , Ian D. McGreer , Nicolás Medina Peña , Matthew Melendez , Andrea Merloni , Michael R. Merrifield , Szabolcs Meszaros , Andres Meza , Ivan Minchev , Dante Minniti , Takamitsu Miyaji , Surhud More , John Mulchaey , Francisco Müller-Sánchez , Demitri Muna , Ricardo R. Munoz , Adam D. Myers , Preethi Nair , Kirpal Nandra , Janaina Correa do Nascimento , Alenka Negrete , Melissa Ness , Jeffrey A. Newman , Robert C. Nichol , David L. Nidever , Christian Nitschelm , Pierros Ntelis , Julia E. O'Connell , Ryan J. Oelkers , Audrey Oravetz , Daniel Oravetz , Zach Pace , Nelson Padilla , Nathalie Palanque-Delabrouille , Pedro Alonso Palicio , Kaike Pan , Taniya Parikh , Isabelle Pâris , Changbom Park , Alim Y. Patten , Sebastien Peirani , Marcos Pellejero-Ibanez , Samantha Penny , Will J. Percival , Ismael Perez-Fournon , Patrick Petitjean , Matthew M. Pieri , Marc Pinsonneault , Alice Pisani , Radosław Poleski , Francisco Prada , Abhishek Prakash , Anna Bárbara de Andrade Queiroz , M. Jordan Raddick , Anand Raichoor , Sandro Barboza Rembold , Hannah Richstein , Rogemar A. Riffel , Rogério Riffel , Hans-Walter Rix , Annie C. Robin , Constance M. Rockosi , Sergio Rodríguez-Torres , A. Roman-Lopes , Carlos Román-Zúñiga , Margarita Rosado , Ashley J. Ross , Graziano Rossi , John Ruan , Rossana Ruggeri , Eli S. Rykoff , Salvador Salazar-Albornoz , Mara Salvato , Ariel G. Sánchez , David Sánchez Aguado , José R. Sánchez-Gallego , Felipe A. Santana , Basílio Xavier Santiago , Conor Sayres , Ricardo P. Schiavon , Jaderson da Silva Schimoia , Edward F. Schlafly , David J. Schlegel , Donald P. Schneider , Mathias Schultheis , William J. Schuster , Axel Schwope , Hee-Jong Seo , Zhengyi Shao , Shiyin Shen , Matthew Shetrone , Michael Shull , Joshua D. Simon , Danielle Skinner , M. F. Skrutskie , Anže Slosar , Verne V. Smith , Jennifer S. Sobeck , Flavia Sobreira , Garrett Somers , Diogo Souto , David V. Stark , Keivan Stassun , Fritz Stauffer , Matthias Steinmetz , Thaisa Storchi-Bergmann , Alina Streblyanska , Guy S. Stringfellow , Genaro Suárez , Jing Sun , Nao Suzuki , Laszlo Szigeti , Manuchehr Taghizadeh-Popp , Baitian Tang , Charling Tao , Jamie Tayar , Mita Tembe , Johanna Teske , Aniruddha R. Thakar , Daniel Thomas , Benjamin A. Thompson , Jeremy L. Tinker , Patricia Tissera , Rita Tojeiro , Hector Hernandez Toledo , Sylvain de la Torre , Christy Tremonti , Nicholas W. Troup , Octavio Valenzuela , Inma Martinez Valpuesta , Jaime Vargas-González , Mariana Vargas-Magaña , Jose Alberto Vazquez , Sandro Villanova , M. Vivek , Nicole Vogt , David Wake , Rene Walterbos , Yuting Wang , Benjamin Alan Weaver , Anne-Marie Weijmans , David H. Weinberg , Kyle B. Westfall , David G. Whelan , Vivienne Wild , John Wilson , W. M. Wood-Vasey , Dominika Wylezalek , Ting Xiao , Renbin Yan , Meng Yang , Jason E. Ybarra , Christophe Yèche , Nadia Zakamska , Olga Zamora , Pauline Zarrouk , Gail Zasowski , Kai Zhang , Gong-Bo Zhao , Zheng Zheng , Zhi-Min Zhou , Guangtun B. Zhu , Manuela Zoccali , Hu Zou

In addition to comprehensive surveys of the Milky Way bulge, disk, and halo, the Apache Point Galactic Evolution Experiment (APOGEE) project observed seven dwarf spheroidal satellites (dSphs) of the Milky Way: Carina, Sextans, Sculptor,…

The history of the Milky Way is encoded in the spatial distributions, kinematics, and chemical enrichment patterns of its resolved stellar populations. SEGUE-2 and APOGEE, two of the four surveys that comprise SDSS-III (the Sloan Digital…

The Sloan Digital Sky Survey--III (SDSS--III) Apache Point Observatory Galactic Evolution Experiment (APOGEE) has obtained high resolution (R $\sim$ 22,500), high signal-to-noise ratio ($>$ 100) spectra in the H$-$band ($\sim$1.5$-$1.7…

The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared…

Instrumentation and Methods for Astrophysics · Physics 2016-08-07 Shadab Alam , Franco D. Albareti , Carlos Allende Prieto , F. Anders , Scott F. Anderson , Brett H. Andrews , Eric Armengaud , Éric Aubourg , Stephen Bailey , Julian E. Bautista , Rachael L. Beaton , Timothy C. Beers , Chad F. Bender , Andreas A. Berlind , Florian Beutler , Vaishali Bhardwaj , Jonathan C. Bird , Dmitry Bizyaev , Cullen H. Blake , Michael R. Blanton , Michael Blomqvist , John J. Bochanski , Adam S. Bolton , Jo Bovy , A. Shelden Bradley , W. N. Brandt , D. E. Brauer , J. Brinkmann , Peter J. Brown , Joel R. Brownstein , Angela Burden , Etienne Burtin , Nicolás G. Busca , Zheng Cai , Diego Capozzi , Aurelio Carnero Rosell , Ricardo Carrera , Yen-Chi Chen , Cristina Chiappini , S. Drew Chojnowski , Chia-Hsun Chuang , Nicolas Clerc , Johan Comparat , Kevin Covey , Rupert A. C. Croft , Antonio J. Cuesta , Katia Cunha , Luiz N. da Costa , Nicola Da Rio , James R. A. Davenport , Kyle S. Dawson , Nathan De Lee , Timothée Delubac , Rohit Deshpande , Letícia Dutra-Ferreira , Tom Dwelly , Anne Ealet , Garrett L. Ebelke , Edward M. Edmondson , Daniel J. Eisenstein , Stephanie Escoffier , Massimiliano Esposito , Xiaohui Fan , Emma Fernández-Alvar , Diane Feuillet , Nurten Filiz Ak , Hayley Finley , Alexis Finoguenov , Kevin Flaherty , Scott W. Fleming , Andreu Font-Ribera , Jonathan Foster , Peter M. Frinchaboy , J. G. Galbraith-Frew , D. A. García-Hernández , Ana E. García Pérez , Patrick Gaulme , Jian Ge , R. Génova-Santos , Luan Ghezzi , Bruce A. Gillespie , Léo Girardi , Daniel Goddard , Satya Gontcho A Gontcho , Jonay I. González Hernández , Eva K. Grebel , Jan Niklas Grieb , Nolan Grieves , James E. Gunn , Hong Guo , Paul Harding , Sten Hasselquist , Suzanne L. Hawley , Michael Hayden , Fred R. Hearty , Shirley Ho , David W. Hogg , Kelly Holley-Bockelmann , Jon A. Holtzman , Klaus Honscheid , Joseph Huehnerhoff , Linhua Jiang , Jennifer A. Johnson , Karen Kinemuchi , David Kirkby , Francisco Kitaura , Mark A. Klaene , Jean-Paul Kneib , Xavier P. Koenig , Charles R. Lam , Ting-Wen Lan , Dustin Lang , Pierre Laurent , Jean-Marc Le Goff , Alexie Leauthaud , Khee-Gan Lee , Young Sun Lee , Timothy C. Licquia , Jian Liu , Daniel C. Long , Martín López-Corredoira , Diego Lorenzo-Oliveira , Sara Lucatello , Britt Lundgren , Robert H. Lupton , Claude E. Mack , Suvrath Mahadevan , Marcio A. G. Maia , Steven R. Majewski , Elena Malanushenko , Viktor Malanushenko , A. Manchado , Marc Manera , Qingqing Mao , Claudia Maraston , Robert C. Marchwinski , Daniel Margala , Sarah L. Martell , Marie Martig , Karen L. Masters , Cameron K. McBride , Peregrine M. McGehee , Ian D. McGreer , Richard G. McMahon , Brice Ménard , Marie-Luise Menzel , Andrea Merloni , Szabolcs Mészáros , Adam A. Miller , Jordi Miralda-Escudé , Hironao Miyatake , Antonio D. Montero-Dorta , Surhud More , Xan Morice-Atkinson , Heather L. Morrison , Demitri Muna , Adam D. Myers , Jeffrey A. Newman , Mark Neyrinck , Duy Cuong Nguyen , Robert C. Nichol , David L. Nidever , Pasquier Noterdaeme , Sebastián E. Nuza , Julia E. O'Connell , Robert W. O'Connell , Ross O'Connell , Ricardo L. C. Ogando , Matthew D. Olmstead , Audrey E. Oravetz , Daniel J. Oravetz , Keisuke Osumi , Russell Owen , Deborah L. Padgett , Nikhil Padmanabhan , Martin Paegert , Nathalie Palanque-Delabrouille , Kaike Pan , John K. Parejko , Changbom Park , Isabelle Pâris , Petchara Pattarakijwanich , M. Pellejero-Ibanez , Joshua Pepper , Will J. Percival , Ismael Pérez-Fournon , Ignasi Pérez-Ràfols , Patrick Petitjean , Matthew M. Pieri , Marc H. Pinsonneault , Gustavo F. Porto de Mello , Francisco Prada , Abhishek Prakash , Adrian M. Price-Whelan , M. Jordan Raddick , Mubdi Rahman , Beth A. Reid , James Rich , Hans-Walter Rix , Annie C. Robin , Constance M. Rockosi , Thaíse S. Rodrigues , Sergio Rodríguez-Rottes , Natalie A. Roe , Ashley J. Ross , Nicholas P. Ross , Graziano Rossi , John J. Ruan , J. A. Rubiño-Martín , Eli S. Rykoff , Salvador Salazar-Albornoz , Mara Salvato , Lado Samushia , Ariel G. Sánchez , Basílio Santiago , Conor Sayres , Ricardo P. Schiavon , David J. Schlegel , Sarah J. Schmidt , Donald P. Schneider , Mathias Schultheis , Axel D. Schwope , C. G. Scóccola , Kris Sellgren , Hee-Jong Seo , Neville Shane , Yue Shen , Matthew Shetrone , Yiping Shu , Thirupathi Sivarani , M. F. Skrutskie , Anže Slosar , Verne V. Smith , Flávia Sobreira , Keivan G. Stassun , Matthias Steinmetz , Michael A. Strauss , Alina Streblyanska , Molly E. C. Swanson , Jonathan C. Tan , Jamie Tayar , Ryan C. Terrien , Aniruddha R. Thakar , Daniel Thomas , Benjamin A. Thompson , Jeremy L. Tinker , Rita Tojeiro , Nicholas W. Troup , Mariana Vargas-Magaña , Jose A. Vazquez , Licia Verde , Matteo Viel , Nicole P. Vogt , David A. Wake , Ji Wang , Benjamin A. Weaver , David H. Weinberg , Benjamin J. Weiner , Martin White , John C. Wilson , John P. Wisniewski , W. M. Wood-Vasey , Christophe Yèche , Donald G. York , Nadia L. Zakamska , O. Zamora , Gail Zasowski , Idit Zehavi , Gong-Bo Zhao , Zheng Zheng , Xu Zhou , Zhimin Zhou , Guangtun Zhu , Hu Zou

The Apache Point Observatory Galactic Evolution Experiment (APOGEE) has built the largest moderately high-resolution (R=22, 500) spectroscopic map of the stars across the Milky Way, and including dust-obscured areas. The APOGEE Stellar…

In its three years of operation, the Sloan Digital Sky Survey (SDSS-III) Apache Point Observatory Galactic Evolution Experiment (APOGEE-1) observed $>$14,000 stars with enough epochs over a sufficient temporal baseline for the fitting of…

Despite its importance for understanding the nature of early stellar generations and for constraining Galactic bulge formation models, at present little is known about the metal-poor stellar content of the central Milky Way. This is a…

The Apache Point Observatory Galactic Evolution Experiment (APOGEE) - one of the Sloan Digital Sky Survey III programs -- is using near-infrared spectra of $\sim 100,000$ red giant branch star candidates to study the structure of the Milky…

APOGEE-2 is a high-resolution, near-infrared spectroscopic survey observing roughly 300,000 stars across the entire sky. It is the successor to APOGEE and is part of the Sloan Digital Sky Survey IV (SDSS-IV). APOGEE-2 is expanding upon…

We present the $H$-band spectral line lists adopted by the Apache Point Observatory Galactic Evolution Experiment (APOGEE). The APOGEE line lists comprise astrophysical, theoretical, and laboratory sources from the literature, as well as…

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