The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory
The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory
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DOI：
10.3847/1538-4365/aa8992
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发表时间：
2017-12-01
影响因子：
8.7
通讯作者：
Zou, Hu
中科院分区：
文献类型：
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作者：
Albareti, Franco D.;Allende Prieto, Carlos;Zou, Hu
第四代斯隆数字巡天（SDSS-IV）于2014年7月开始观测。它有三个核心计划：Apache Point Observatory Galactic Evolution Experiment 2（APOGEE-2），APO附近星系映射（MaNGA）和扩展重子振荡光谱巡天（eBOSS）。除了其核心程序外，eBOSS还包含两个主要的子程序：时域光谱调查（TDSS）和ERosita源的光谱识别（SPIDERS）。本文介绍了SDSS-IV的第一个数据发布，数据发布13（DR 13）。DR 13公开了MaNGA对附近星系的首批1390个空间分辨积分场单位观测结果。它包括来自eBOSS的新观测，完成了斯隆扩展类星体，发射线星系，发光红星系巡天（SEQUELS），其中还针对可变性选择的对象和X射线选择的对象。DR 13包括SDSS-III BOSS数据的新缩减，改进了分光光度校准和红移分类，以及SDSS-III APOGEE-1数据的新缩减，改进了矮星和较冷恒星的恒星参数。DR 13提供更强大和精确的光度校准。与eBOSS、TDSS和SPIDERS相关的增值目标目录以及APOGEE的更新红丛目录也可供使用。本文描述了数据的位置和格式，并为重要的技术论文提供参考。SDSS网站http://www.sdss.org提供了数据链接、教程、数据访问示例以及简化和分析程序的大量文档。DR 13是计划中的第一个，将包含来自SDSS-IV计划的类似于6年操作的新数据和分析。
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in 2014 July. It pursues three core programs: the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2), Mapping Nearby Galaxies at APO (MaNGA), and the Extended Baryon Oscillation Spectroscopic Survey (eBOSS). As well as its core program, eBOSS contains two major subprograms: the Time Domain Spectroscopic Survey (TDSS) and the SPectroscopic IDentification of ERosita Sources (SPIDERS). This paper describes the first data release from SDSS-IV, Data Release 13 (DR13). DR13 makes publicly available the first 1390 spatially resolved integral field unit observations of nearby galaxies from MaNGA. It includes new observations from eBOSS, completing the Sloan Extended QUasar, Emission-line galaxy, Luminous red galaxy Survey (SEQUELS), which also targeted variability-selected objects and X-ray-selected objects. DR13 includes new reductions of the SDSS-III BOSS data, improving the spectrophotometric calibration and redshift classification, and new reductions of the SDSS-III APOGEE-1 data, improving stellar parameters for dwarf stars and cooler stars. DR13 provides more robust and precise photometric calibrations. Value-added target catalogs relevant for eBOSS, TDSS, and SPIDERS and an updated red-clump catalog for APOGEE are also available. This paper describes the location and format of the data and provides references to important technical papers. The SDSS web site, http://www.sdss.org, provides links to the data, tutorials, examples of data access, and extensive documentation of the reduction and analysis procedures. DR13 is the first of a scheduled set that will contain new data and analyses from the planned similar to 6 yr operations of SDSS-IV.