ABYSS I：SDSS-V中APOGEE & BOSS年轻恒星巡天的目标选择策略
ABYSS I: Targeting strategy for APOGEE & BOSS young star survey in SDSS-V
AI总结：
ABYSS为SDSS-V设计了一套包含8种选择标准的目标策略，旨在通过观测约10万颗年轻恒星，构建迄今最大的年轻恒星光谱普查，覆盖从近邻弥散星协到内银河系的大质量复合体。
摘要：
斯隆数字巡天第五期（SDSS-V）计划获取银河系中约500万颗各年龄和质量的恒星的光学及近红外光谱。作为这些工作的一部分，APOGEE & BOSS年轻恒星巡天（ABYSS）将观测约10万颗年龄小于3000万年的恒星，这些恒星通过利用不同年轻示踪物的均匀选择函数进行选取。本文描述的ABYSS目标选择策略旨在提供迄今为止最大的年轻恒星光谱普查。该策略包含8种不同类型的选择标准，综合考虑了赫罗图上的位置、红外超、变异性以及相空间中的位置。由此产生的约20万个源（其中预计一半将被观测）的星表提供了对年轻银河系的代表性覆盖，包括附近的弥散星协以及更遥远的大质量复合体，并延伸至内银河系和银河系中心。
英文摘要：
The fifth iteration of the Sloan Digital Sky Survey (SDSS-V) is set to obtain optical and near-infrared spectra of $\sim$5 million stars of all ages and masses throughout the Milky Way. As a part of these efforts, APOGEE & BOSS Young Star Survey (ABYSS) will observe $\sim10^5$ stars with ages $<$30 Myr that have been selected using a set of homogeneous selection functions that make use of different tracers of youth. The ABYSS targeting strategy we describe in this paper is aimed to provide the largest spectroscopic census of young stars to-date. It consists of 8 different types of selection criteria that take the position on the HR diagram, infrared excess, variability, as well as the position in phase space in consideration. The resulting catalog of $\sim$200,000 sources (of which a half are expected to be observed) provides representative coverage of the young Galaxy, including both nearby diffuse associations as well as more distant massive complexes, reaching towards the inner Galaxy and the Galactic center.
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。
