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Final Targeting Str...
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Beaton, Rachael L.Carnegie Institution for Science,Princeton University
(author)
Final Targeting Strategy for the Sloan Digital Sky Survey IV Apache Point Observatory Galactic Evolution Experiment 2 North Survey
- Article/chapterEnglish2021
Publisher, publication year, extent ...
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2021-12-08
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American Astronomical Society,2021
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LIBRIS-ID:oai:lup.lub.lu.se:b2a2a85a-8ee9-4497-96a1-e90b5d3b2b79
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https://lup.lub.lu.se/record/b2a2a85a-8ee9-4497-96a1-e90b5d3b2b79URI
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https://doi.org/10.3847/1538-3881/ac260cDOI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Notes
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The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is a dual-hemisphere, near-infrared (NIR), spectroscopic survey with the goal of producing a chemodynamical mapping of the Milky Way. The targeting for APOGEE-2 is complex and has evolved with time. In this paper, we present the updates and additions to the initial targeting strategy for APOGEE-2N presented in Zasowski et al. (2017). These modifications come in two implementation modes: (i) "Ancillary Science Programs"competitively awarded to Sloan Digital Sky Survey IV PIs through proposal calls in 2015 and 2017 for the pursuit of new scientific avenues outside the main survey, and (ii) an effective 1.5 yr expansion of the survey, known as the Bright Time Extension (BTX), made possible through accrued efficiency gains over the first years of the APOGEE-2N project. For the 23 distinct ancillary programs, we provide descriptions of the scientific aims, target selection, and how to identify these targets within the APOGEE-2 sample. The BTX permitted changes to the main survey strategy, the inclusion of new programs in response to scientific discoveries or to exploit major new data sets not available at the outset of the survey design, and expansions of existing programs to enhance their scientific success and reach. After describing the motivations, implementation, and assessment of these programs, we also leave a summary of lessons learned from nearly a decade of APOGEE-1 and APOGEE-2 survey operations. A companion paper, F. Santana et al. (submitted; AAS29036), provides a complementary presentation of targeting modifications relevant to APOGEE-2 operations in the Southern Hemisphere. © 2021. The American Astronomical Society. All rights reserved..
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Feuillet, DianeLund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science,Max Planck Institute for Astronomy(Swepub:lu)di7483fe
(author)
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Zamora, OlgaInstituto de Astrofísica de Canarias,University of La Laguna (ULL)
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Carnegie Institution for SciencePrinceton University
(creator_code:org_t)
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et al.
Related titles
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In:The Astronomical Journal: American Astronomical Society162:60004-62561538-3881
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