Final Targeting Strategy for the Sloan Digital Sky Survey IV Apache Point Observatory Galactic Evolution Experiment 2 North Survey


Por: Beaton, Rachael L., Oelkers, Ryan J., Hayes, Christian R., Covey, Kevin R., Chojnowski, S. D., De Lee, Nathan, Sobeck, Jennifer S., Majewski, Steven R., Cohen, Roger E., Fernandez-Trincado, Jose, Longa-Pena, Penelope, O'Connell, Julia E., Santana, Felipe A., Stringfellow, Guy S., Zasowski, Gail, Aerts, Conny, Anguiano, Borja, Bender, Chad, Canas, Caleb I., Cunha, Katia, Donor, John, Fleming, Scott W., Frinchaboy, Peter M., Feuillet, Diane, Harding, Paul, Hasselquist, Sten, Holtzman, Jon A., Johnson, Jennifer A., Kollmeier, Juna A., Kounkel, Marina, Mahadevan, Suvrath, Price-Whelan, Adrian. M., Rojas-Arriagada, Alvaro, Roman-Zuniga, Carlos, Schlafly, Edward F., Schultheis, Mathias, Shetrone, Matthew, Simon, Joshua D., Stassun, Keivan G., Stutz, Amelia M., Tayar, Jamie, Teske, Johanna, Tkachenko, Andrew, Troup, Nicholas, Albareti, Franco D., Bizyaev, Dmitry, Bovy, Jo, Burgasser, Adam J., Comparat, Johan, Downes, Juan Jose, Geisler, Doug, Inno, Laura, Manchado, Arturo, Ness, Melissa K., Pinsonneault, Marc H., Prada, Francisco, Roman-Lopes, Alexandre, Simonian, Gregory V. A., Smith, Verne V., Yan, Renbin, Zamora, Olga

Publicada: 1 dic 2021
Resumen:
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.

Filiaciones:
Beaton, Rachael L.:
 Princeton Univ, Dept Astrophys Sci, 4 Ivy Lane, Princeton, NJ 08544 USA

 Observatories Carnegie Inst Sci, 813 Santa Barbara St, Pasadena, CA 91101 USA

Oelkers, Ryan J.:
 Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

Hayes, Christian R.:
 Univ Washington, Dept Astron, Seattle, WA 98195 USA

Covey, Kevin R.:
 Western Washington Univ, Dept Phys & Astron, Bellingham, WA 98225 USA

Chojnowski, S. D.:
 New Mexico State Univ, Dept Astron, Las Cruces, NM 88001 USA

 Montana State Univ, Dept Phys, POB 173840, Bozeman, MT 59717 USA

De Lee, Nathan:
 Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

 Northern Kentucky Univ, Dept Phys Geol & Engn Technol, Highland Hts, KY 41099 USA

Sobeck, Jennifer S.:
 Univ Washington, Dept Astron, Seattle, WA 98195 USA

Majewski, Steven R.:
 Univ Virginia, Dept Astron, Charlottesville, VA 22903 USA

Cohen, Roger E.:
 Space Telescope Sci Inst, Baltimore, MD 21218 USA

Fernandez-Trincado, Jose:
 Univers Atacama, Inst Astron & Ciencias Planetarias, Copayapu 485, Copiapo, Chile

 Univ Catolica Norte, Inst Astronomia, Av Angamos, Angamos 0610, Chile

Longa-Pena, Penelope:
 Univers Antofagasta, Ctr Astron, Ave Angamos 601, Antofagasta 1270300, Chile

O'Connell, Julia E.:
 Univ Concepcion, Dept Astron, Casilla 160-C, Concepcion, Chile

Santana, Felipe A.:
 Univ Chile, Dept Astron, Camino el Observatorio 1515, Santiago, Chile

Stringfellow, Guy S.:
 Univ Colorado, Dept Astrophys & Planetary Sci, Ctr Astrophys & Space Astron, Boulder, CO 80309 USA

Zasowski, Gail:
 Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA

Aerts, Conny:
 Katholieke Univ Leuven, Inst Astron, Celestijnenlaan 200D, B-3001 Leuven, Belgium

Anguiano, Borja:
 Univ Virginia, Dept Astron, Charlottesville, VA 22903 USA

Bender, Chad:
 Univ Arizona, Steward Observ, Tucson, AZ 85719 USA

Canas, Caleb I.:
 Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA

 Ctr Exoplanets & Habitable Worlds, University Pk, PA 16802 USA

 Penn State Astrobiol Res Ctr, University Pk, PA 16802 USA

Cunha, Katia:
 Univ Arizona, Steward Observ, Tucson, AZ 85719 USA

 Observatorio Nacl, 20921-400 So Cristovao, Rio De Janeiro, Brazil

Donor, John:
 Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA

Fleming, Scott W.:
 Space Telescope Sci Inst, Baltimore, MD 21218 USA

Frinchaboy, Peter M.:
 Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA

Feuillet, Diane:
 Lund Univ, Lund Observ, Dept Astron & Theoret Phys, POB 43, Lund, Sweden

 Max Planck Inst Astronom, Konigstuhl 17, D-69117 Heidelberg, Germany

Harding, Paul:
 Case Western Reserve Univ, Dept Astron, Cleveland, OH 44106 USA

Hasselquist, Sten:
 Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA

Holtzman, Jon A.:
 New Mexico State Univ, Dept Astron, Las Cruces, NM 88001 USA

Johnson, Jennifer A.:
 Ohio State Univ, Dept Astron, Columbus, OH 43210 USA

Kollmeier, Juna A.:
 Observatories Carnegie Inst Sci, 813 Santa Barbara St, Pasadena, CA 91101 USA

Kounkel, Marina:
 Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

 Western Washington Univ, Dept Phys & Astron, Bellingham, WA 98225 USA

Mahadevan, Suvrath:
 Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA

 Ctr Exoplanets & Habitable Worlds, University Pk, PA 16802 USA

 Penn State Astrobiol Res Ctr, University Pk, PA 16802 USA

Price-Whelan, Adrian. M.:
 Flatiron Inst, Ctr Computat Astrophys, 162 Fifth Ave, New York, NY 10010 USA

Rojas-Arriagada, Alvaro:
 Pontificia Univ Catolica Chile, Fac Fis, Inst Astrofis, Av Vicuna Mackenna, Santiago 4860, Chile

 Millennium Inst Astrophys, Av Vicuna Mackenna 4860, Santiago 7820436, Chile

Roman-Zuniga, Carlos:
 Univ Nacl Autonoma Mex, Inst Astron, AP 106, Ensenada 22800, Baja California, Mexico

Schlafly, Edward F.:
 Lawrence Berkeley Natl Lab, One Cyclotron Rd, Berkeley, CA 94720 USA

Schultheis, Mathias:
 Observ Cote Azur, Lagrange Blvd Observ, F-06304 Nice, France

Shetrone, Matthew:
 Univ Calif Observ, Santa Cruz, CA 95064 USA

Simon, Joshua D.:
 Observatories Carnegie Inst Sci, 813 Santa Barbara St, Pasadena, CA 91101 USA

Stassun, Keivan G.:
 Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

Stutz, Amelia M.:
 Univ Concepcion, Dept Astron, Casilla 160-C, Concepcion, Chile

Tayar, Jamie:
 Univ Hawai, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA

Teske, Johanna:
 Carnegie Inst Sci, Earth & Planets Lab, 5241 Broad Branch Rd, Washington, DC 20015 USA

Tkachenko, Andrew:
 Katholieke Univ Leuven, Inst Astron, Celestijnenlaan 200D, B-3001 Leuven, Belgium

Troup, Nicholas:
 Salisbury Univ, Dept Phys, Salisbury, MD 21801 USA

Albareti, Franco D.:
 Univ Autonoma Madrid, Inst Fis Teor UAM CSIC, Madrid 28049, Spain

 Campus Int Excellence UAM CSIC, Madrid 28049, Spain

Bizyaev, Dmitry:
 New Mexico State Univ, Apache Point Observ, Sunspot, NM 88349 USA

 Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow, Russia

 Special Astrophys Observ Russian AS, Nizhnii Arkhyz 369167, Russia

Bovy, Jo:
 Univ Toronto, David A Dunlap Dept Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada

 Univ Toronto, Dunlap Inst Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada

Burgasser, Adam J.:
 Univ Calif San Diego, Ctr Astrophys & Space Sci, La Jolla, CA 92093 USA

Comparat, Johan:
 Max Planck Inst Extraterrestr Phys MPE, Giessenbachstr 1, D-85748 Munich, Germany

Downes, Juan Jose:
 Univ Republ, Ctr Univ Reg Este, AP 264, Rocha 27000, Uruguay

Geisler, Doug:
 Univ Concepcion, Dept Astron, Casilla 160-C, Concepcion, Chile

 Univ Serena, Inst Invest Multidisciplinario Ciencia & Tecnol, Ave Raul Bitran S-N, La Serena, Chile

 Univ Serena, Dept Astron, Av Juan Cisternas,1200 North, La Serena, Chile

Inno, Laura:
 INAF Osservatorio Astrofisico Arcetri, Largo, Fermi 5, Largo E Fermi 5, I-50125 Florence, Italy

Manchado, Arturo:
 Instituto AstroFis Canarias IAC, San Cristobal la Laguna 38205, Spain

 Univ Laguna ULL, Dept Astrofis, San Cristobal la Laguna, Spain

 CSIC, Madrid, Spain

Ness, Melissa K.:
 Flatiron Inst, Ctr Computat Astrophys, 162 Fifth Ave, New York, NY 10010 USA

 Columbia Univ, Dept Astron, Pupin Phys Labs, New York, NY 10027 USA

Pinsonneault, Marc H.:
 Ohio State Univ, Dept Astron, Columbus, OH 43210 USA

Prada, Francisco:
 CSIC, Madrid, Spain

Roman-Lopes, Alexandre:
 Univ Serena, Dept Astron, Av Juan Cisternas,1200 North, La Serena, Chile

Simonian, Gregory V. A.:
 Ohio State Univ, Dept Astron, Columbus, OH 43210 USA

Smith, Verne V.:
 Natl Opt Astronomy Observ, 950 N Cherry Ave, Tucson, AZ 85719 USA

Yan, Renbin:
 Univ Kentucky, Dept Phys & Astron, 505 Rose St, Lexington, KY 40506 USA

 Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China

Zamora, Olga:
 Instituto AstroFis Canarias IAC, San Cristobal la Laguna 38205, Spain

 Univ Laguna ULL, Dept Astrofis, San Cristobal la Laguna, Spain
ISSN: 00046256





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