The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library
The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library
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DOI：
10.3847/1538-4365/aaf651
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发表时间：
2018-12
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通讯作者：
D. Aguado;Romina Ahumada;Andr'es Almeida;S. Anderson;B. Andrews;B. Anguiano;E. Ort́ız;A. Aragón-Sa
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作者：
D. Aguado;Romina Ahumada;Andr'es Almeida;S. Anderson;B. Andrews;B. Anguiano;E. Ort́ız;A. Aragón-Sa
自斯隆数字巡天 (SDSS) 首次亮相以来，已经过去了二十年。在这里，我们发布了 SDSS 第四阶段（SDSS-IV）在其前三年运营（2014 年 7 月至 2017 年 7 月）期间采集的数据。这是 SDSS-IV 的第三次数据发布，也是 SDSS 的第 15 次数据发布（数据发布十五；DR15）。新数据来自 MaNGA——我们发布了 4824 个数据立方体，以及 MaNGA 恒星库 (MaStar) 中的第一个恒星光谱、来自 MaNGA 数据分析管道的第一套调查支持的分析产品（例如恒星和气体运动学、发射线和其他图），以及我们称为“Marvin”的新数据可视化和访问工具。下一个数据发布 DR16 将包括来自 APOGEE-2 和 eBOSS 的新数据；这些调查在此没有发布新数据，但我们记录了对其数据处理流程的更新和更正。释放是累积的；它还包括自第一道曙光以来 SDSS 采集的所有数据的最新缩减和校准。在本文中，我们描述了数据和工具的位置和格式，并引用了描述如何获取和处理数据的技术参考资料。 SDSS 网站 (www.sdss.org) 也已更新，提供数据下载、教程和数据使用示例的链接。尽管 SDSS-IV 将继续收集天文数据直至 2020 年，并且随后将进行 SDSS-V（2020-2025 年），但我们在本文的结尾描述了确保 SDSS 数据档案在数据收集之外多年的可持续性的计划。
Twenty years have passed since first light for the Sloan Digital Sky Survey (SDSS). Here, we release data taken by the fourth phase of SDSS (SDSS-IV) across its first three years of operation (2014 July–2017 July). This is the third data release for SDSS-IV, and the 15th from SDSS (Data Release Fifteen; DR15). New data come from MaNGA—we release 4824 data cubes, as well as the first stellar spectra in the MaNGA Stellar Library (MaStar), the first set of survey-supported analysis products (e.g., stellar and gas kinematics, emission-line and other maps) from the MaNGA Data Analysis Pipeline, and a new data visualization and access tool we call “Marvin.” The next data release, DR16, will include new data from both APOGEE-2 and eBOSS; those surveys release no new data here, but we document updates and corrections to their data processing pipelines. The release is cumulative; it also includes the most recent reductions and calibrations of all data taken by SDSS since first light. In this paper, we describe the location and format of the data and tools and cite technical references describing how it was obtained and processed. The SDSS website (www.sdss.org) has also been updated, providing links to data downloads, tutorials, and examples of data use. Although SDSS-IV will continue to collect astronomical data until 2020, and will be followed by SDSS-V (2020–2025), we end this paper by describing plans to ensure the sustainability of the SDSS data archive for many years beyond the collection of data.