Final Targeting Strategy for the SDSS-IV APOGEE-2S Survey
Journal article, 2021

APOGEE is a high-resolution (R similar to 22,000), near-infrared, multi-epoch, spectroscopic survey of the Milky Way. The second generation of the APOGEE project, APOGEE-2, includes an expansion of the survey to the Southern Hemisphere called APOGEE-2S. This expansion enabled APOGEE to perform a fully panoramic mapping of all of the main regions of the Milky Way; in particular, by operating in the H band, APOGEE is uniquely able to probe the dust-hidden inner regions of the Milky Way that are best accessed from the Southern Hemisphere. In this paper we present the targeting strategy of APOGEE-2S, with special attention to documenting modifications to the original, previously published plan. The motivation for these changes is explained as well as an assessment of their effectiveness in achieving their intended scientific objective. In anticipation of this being the last paper detailing APOGEE targeting, we present an accounting of all such information complete through the end of the APOGEE-2S project; this includes several main survey programs dedicated to exploration of major stellar populations and regions of the Milky Way, as well as a full list of programs contributing to the APOGEE database through allocations of observing time by the Chilean National Time Allocation Committee and the Carnegie Institution for Science. This work was presented along with a companion article, Beaton et al. (2021), presenting the final target selection strategy adopted for APOGEE-2 in the Northern Hemisphere.

Author

Felipe A. Santana

University of Chile (UCH)

Rachael L. Beaton

Carnegie Institution for Science

Princeton University

Kevin R. Covey

Western Washington University

Julia E. O'Connell

University of Concepcion

Penelope Longa-Pena

University of Antofagasta

Roger Cohen

Space Telescope Science Institute (STScI)

Jose G. Fernandez-Trincado

University of Atacama

Universidad Catolica del Norte

Christian R. Hayes

University of Washington

Gail Zasowski

University of Utah

Jennifer S. Sobeck

University of Washington

Steven R. Majewski

University of Virginia

New Mexico State University

S. D. Chojnowski

Montana State University

Nathan De Lee

Northern Kentucky University

Vanderbilt University

Ryan J. Oelkers

Vanderbilt University

Guy S. Stringfellow

University of Colorado at Boulder

Andres Almeida

New Mexico State University

University of Virginia

Borja Anguiano

Macquarie University

University of Virginia

New Mexico State University

John Donor

Texas Christian University

Peter M. Frinchaboy

Texas Christian University

Sten Hasselquist

University of Utah

Jennifer A. Johnson

Ohio State University

Juna A. Kollmeier

Carnegie Institution for Science

David L. Nidever

Montana State University

Adrian M. Price-Whelan

Flatiron Institute

Alvaro Rojas-Arriagada

Pontificia Universidad Catolica de Chile

Millennium Institute of Astrophysics

Mathias Schultheis

Observatoire de la Cote d'Azur

Matthew Shetrone

University of California at Santa Cruz

Joshua D. Simon

Carnegie Institution for Science

Conny Aerts

KU Leuven

Jura Borissova

University of Valparaíso

Millennium Institute of Astrophysics

Maria R. Drout

Carnegie Institution for Science

University of Toronto

Doug Geisler

University of La Serena

University of Concepcion

Chi Yan Law

Chinese University of Hong Kong

Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics

Nicolas Medina

University of Valparaíso

Millennium Institute of Astrophysics

Dante Minniti

Vatican Observatory

Universidad Andrés Bello

Antonela Monachesi

University of La Serena

Ricardo R. Munoz

University of Chile (UCH)

Radoslaw Poleski

Ohio State University

University of Warsaw

Alexandre Roman-Lopes

University of La Serena

Kevin C. Schlaufman

Johns Hopkins University

Amelia M. Stutz

University of Concepcion

Johanna Teske

Carnegie Institution for Science

Andrew Tkachenko

KU Leuven

Jennifer L. Van Saders

University of Hawaii

Alycia J. Weinberger

Carnegie Institution for Science

Manuela Zoccali

Millennium Institute of Astrophysics

Pontificia Universidad Catolica de Chile

Astronomical Journal

0004-6256 (ISSN) 1538-3881 (eISSN)

Vol. 162 6 303

Subject Categories

Computer Engineering

Computer Science

Computer Systems

DOI

10.3847/1538-3881/ac2cbc

More information

Latest update

12/17/2021