SEGUE: A SPECTROSCOPIC SURVEY OF 240,000 STARS WITH g = 14–20
SEGUE: A SPECTROSCOPIC SURVEY OF 240,000 STARS WITH g = 14–20
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DOI：
10.1088/0004-6256/137/5/4377
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发表时间：
2009-02
期刊：
影响因子：
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通讯作者：
B. Yanny;C. Rockosi;H. Newberg;G. Knapp;J. Adelman-McCarthy;Bonnie Alcorn;S. Allam;Carlos Prieto Allende
中科院分区：
文献类型：
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作者：
B. Yanny;C. Rockosi;H. Newberg;G. Knapp;J. Adelman-McCarthy;Bonnie Alcorn;S. Allam;Carlos Prieto Allende
斯隆银河系理解和探索扩展巡天（SEGUE）获得了240，000个中等分辨率（R 1800）光谱，从3900至9000的暗银河系恒星（每分辨率元素14.0 10），估计恒星大气参数，包括金属丰度，表面重力和有效温度。SEGUE获得了3500度2的额外ugriz成像（主要在银河系低纬度），为光谱目标选择提供了精确的光谱测光（σ（g，r，i）<$2%），（σ（u，z）<$3%）和天体测量（σ 0.″1）。这次巡天的恒星光谱、成像数据和导出的参数目录作为斯隆数字巡天数据第7版的一部分公开提供。
The Sloan Extension for Galactic Understanding and Exploration (SEGUE) Survey obtained ≈240,000 moderate-resolution (R ∼ 1800) spectra from 3900 Å to 9000 Å of fainter Milky Way stars (14.0 10 per resolution element, stellar atmospheric parameters are estimated, including metallicity, surface gravity, and effective temperature. SEGUE obtained 3500 deg2 of additional ugriz imaging (primarily at low Galactic latitudes) providing precise multicolor photometry (σ(g, r, i) ∼ 2%), (σ(u, z) ∼ 3%) and astrometry (≈0.″1) for spectroscopic target selection. The stellar spectra, imaging data, and derived parameter catalogs for this survey are publicly available as part of Sloan Digital Sky Survey Data Release 7.