Final Targeting Strategy for the SDSS-IV APOGEE-2S Survey
Abstract
APOGEE is a high-resolution (R sim 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 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 (CNTAC) and the Carnegie Institution for Science (CIS). This work was presented along with a companion article, R. Beaton et al. (submitted; AAS29028), presenting the final target selection strategy adopted for APOGEE-2 in the Northern Hemisphere.
Keywords
Cite
@article{arxiv.2108.11908,
title = {Final Targeting Strategy for the SDSS-IV APOGEE-2S Survey},
author = {Felipe A. Santana and Rachael L. Beaton and Kevin R. Covey and Julia E. O'Connell and Penélope Longa-Peña and Roger Cohen and José G. Fernández-Trincado and Christian R. Hayes and Gail Zasowski and Jennifer S. Sobeck and Steven R. Majewski and S. D. Chojnowski and Nathan De Lee and Ryan J. Oelkers and Guy S. Stringfellow and Andrés Almeida and Borja Anguiano and John Donor and Peter M. Frinchaboy and Sten Hasselquist and Jennifer A. Johnson and Juna A. Kollmeier and David L. Nidever and Adrian. M. Price-Whelan and Alvaro Rojas-Arriagada and Mathias Schultheis and Matthew Shetrone and Joshua D. Simon and Conny Aerts and Jura Borissova and Maria R. Drout and Doug Geisler and C. Y. Law and Nicolás Medina and Dante Minniti and Antonela Monachesi and Ricardo R. Muñoz and Radosław Poleski and Alexandre Roman-Lopes and Kevin C. Schlaufman and Amelia M. Stutz and Johanna Teske and Andrew Tkachenko and Jennifer L. Van Saders and Alycia Weinberger and Manuela Zoccali},
journal= {arXiv preprint arXiv:2108.11908},
year = {2021}
}
Comments
43 pages; 5 figures; 6 Tables; 1 Appendix; Submitted to Journal and Under Review; Posting to accompany papers using the SDSS-IV/APOGEE-2 Data Release 17 scheduled for December 2021