THE ELEVENTH AND TWELFTH DATA RELEASES OF THE SLOAN DIGITAL SKY SURVEY: FINAL DATA FROM SDSS-III
THE ELEVENTH AND TWELFTH DATA RELEASES OF THE SLOAN DIGITAL SKY SURVEY: FINAL DATA FROM SDSS-III
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DOI：
10.1088/0067-0049/219/1/12
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发表时间：
2015-07-01
影响因子：
8.7
通讯作者：
Zhu, Guangtun
中科院分区：
文献类型：
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作者：
Alam, Shadab;Albareti, Franco D.;Zhu, Guangtun
第三代斯隆数字巡天 (SDSS-III) 使用原始的 SDSS 宽视场成像仪、原始和升级的多目标光纤馈送光学摄谱仪、新型近红外高分辨率摄谱仪和新型光学干涉仪采集了 2008 年至 2014 年的数据。 SDSS-III 的所有数据现已公开。特别是，本文介绍了数据发布 11 (DR11)，包括截至 2013 年 7 月采集的所有数据，以及数据发布 12 (DR12)，添加了截至 2014 年 7 月采集的数据（包括之前数据发布中包含的所有数据），标志着 SDSS-III 观测的结束。相对于我们之前的公开发布 (DR10)，DR12 在额外 3000 度(2) 的天空中添加了 100 万个来自重子振荡光谱巡天 (BOSS) 的星系和类星体的新光谱，作为阿帕奇点天文台 (APO) 银河演化实验 (APOGEE) 一部分的恒星 H 波段光谱数量增加了三倍多，并包括对来自 5500 颗恒星的重复精确径向速度测量。多目标 APO 径向速度系外行星大面积勘测 (MARVELS)。 APOGEE 输出现在包括每颗恒星 15 种不同元素的测量丰度。总共，SDSS-III 增加了 5200 deg(2) 的 ugriz 成像；作为斯隆银河理解与演化探索 2 (SEGUE-2) 调查的一部分，138,099 颗恒星的 155,520 个光谱； 9376 度以上 1,372,737 个星系、294,512 个类星体和 247,216 个恒星的 2,497,484 个 BOSS 光谱(2)； 156,593 颗恒星的 618,080 个远地点光谱；以及 5513 颗恒星的 197,040 个 MARVELS 光谱。自 1998 年首次发射以来，SDSS 已对超过 1/3 天球的五个波段进行了成像，并获得了超过 500 万个天文光谱。
The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared high-resolution spectrograph, and a novel optical interferometer. All of the data from SDSS-III are now made public. In particular, this paper describes Data Release 11 (DR11) including all data acquired through 2013 July, and Data Release 12 (DR12) adding data acquired through 2014 July (including all data included in previous data releases), marking the end of SDSS-III observing. Relative to our previous public release (DR10), DR12 adds one million new spectra of galaxies and quasars from the Baryon Oscillation Spectroscopic Survey (BOSS) over an additional 3000 deg(2) of sky, more than triples the number of H-band spectra of stars as part of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE), and includes repeated accurate radial velocity measurements of 5500 stars from the Multi-object APO Radial Velocity Exoplanet Large-area Survey (MARVELS). The APOGEE outputs now include the measured abundances of 15 different elements for each star. In total, SDSS-III added 5200 deg(2) of ugriz imaging; 155,520 spectra of 138,099 stars as part of the Sloan Exploration of Galactic Understanding and Evolution 2 (SEGUE-2) survey; 2,497,484 BOSS spectra of 1,372,737 galaxies, 294,512 quasars, and 247,216 stars over 9376 deg(2); 618,080 APOGEE spectra of 156,593 stars; and 197,040 MARVELS spectra of 5513 stars. Since its first light in 1998, SDSS has imaged over 1/3 of the Celestial sphere in five bands and obtained over five million astronomical spectra.