期刊
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
卷 193, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0067-0049/193/2/29
关键词
atlases; catalogs; surveys
资金
- Alfred P. Sloan Foundation
- National Science Foundation
- US Department of Energy
- University of Arizona
- Brazilian Participation Group
- Brookhaven National Laboratory
- University of Cambridge
- University of Florida
- French Participation Group
- German Participation Group
- Instituto de Astrofisica de Canarias
- Michigan State/Notre Dame/JINA Participation Group
- Johns Hopkins University
- Lawrence Berkeley National Laboratory
- Max Planck Institute for Astrophysics
- New Mexico State University
- New York University
- Ohio State University
- Pennsylvania State University
- University of Portsmouth
- Princeton University
- Spanish Participation Group
- University of Tokyo
- University of Utah
- Vanderbilt University
- University of Virginia
- University of Washington
- Yale University
- ICREA Funding Source: Custom
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [1009886] Funding Source: National Science Foundation
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [0909463] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1002399] Funding Source: National Science Foundation
- Grants-in-Aid for Scientific Research [23540289, 23740144] Funding Source: KAKEN
- Science and Technology Facilities Council [ST/I001204/1, ST/H00243X/1, ST/F007531/1, ST/H002774/1] Funding Source: researchfish
- STFC [ST/H002774/1, ST/F007531/1, ST/I001204/1] Funding Source: UKRI
The Sloan Digital Sky Survey (SDSS) started a new phase in 2008 August, with new instrumentation and new surveys focused on Galactic structure and chemical evolution, measurements of the baryon oscillation feature in the clustering of galaxies and the quasar Ly alpha forest, and a radial velocity search for planets around similar to 8000 stars. This paper describes the first data release of SDSS-III (and the eighth counting from the beginning of the SDSS). The release includes five-band imaging of roughly 5200 deg(2) in the southern Galactic cap, bringing the total footprint of the SDSS imaging to 14,555 deg(2), or over a third of the Celestial Sphere. All the imaging data have been reprocessed with an improved sky-subtraction algorithm and a final, self-consistent photometric recalibration and flat-field determination. This release also includes all data from the second phase of the Sloan Extension for Galactic Understanding and Exploration (SEGUE-2), consisting of spectroscopy of approximately 118,000 stars at both high and low Galactic latitudes. All the more than half a million stellar spectra obtained with the SDSS spectrograph have been reprocessed through an improved stellar parameter pipeline, which has better determination of metallicity for high-metallicity stars.
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