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arXiv 2108.11907astro-ph.GAastro-ph.SR
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SDSS-IV APOGEE-2N调查的最终目标策略

Final Targeting Strategy for the SDSS-IV APOGEE-2N Survey

Rachael L. Beaton, Ryan J. Oelkers, Christian R. Hayes, Kevin R. Covey, S. D. Chojnowski, Nathan De Lee, Jennifer S. Sobeck, Steven R. Majewski, Roger Cohen, Jo… 展开作者

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

摘要:

APOGEE-2是一个双半球,近红外(NIR),光谱调查的目标是产生银河系的化学动力学映射。针对APOGEE-2的靶向是复杂的,并且随着时间的推移而演变。在本文中,我们对Zasowski等人提出的APOGEE-2N初始靶向策略进行了更新和补充。(2017)。这些修改有两种实现模式:(i)通过2015年和2017年的提案呼吁,竞争性地授予SDSS-IV PI“辅助科学计划”,以寻求主要调查之外的新科学途径,以及(ii)调查有效的1.5年扩展,称为光明时间延长,这是通过APOGEE-2N项目头几年积累的效率收益实现的。对于23个不同的辅助计划,我们提供了科学目标,目标选择,以及如何在APOGEE-2样本中识别这些目标的描述。光明时间延长允许改变主要的调查策略,包括新的计划,以应对科学发现或利用在调查设计开始时无法获得的主要新数据集,以及扩展现有计划以提高其科学成功和影响范围。在描述了这些计划的动机、实施和评估之后,我们还总结了近十年来APOGEE-1和APOGEE-2调查行动的经验教训。Santana等人(已提交)的一篇配套论文提供了与南半球APOGEE-2操作相关的靶向修改的补充介绍。

英文摘要:

APOGEE-2 is a dual-hemisphere, near-infrared (NIR), spectroscopic survey with the goal of producing a chemo-dynamical mapping of the Milky Way Galaxy. 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 SDSS-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-year expansion of the survey, known as the Bright Time Extension, 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 Bright Time Extension permitted changes to the main survey strategy, the inclusion of new programs in response to scientific discoveries or to exploit major new datasets 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, Santana et al. (submitted), provides a complementary presentation of targeting modifications relevant to APOGEE-2 operations in the Southern Hemisphere.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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