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Title: The Eighth Data Release of the Sloan Digital Sky Survey: First Data from SDSS-III
Author: Aihara, Hiroaki
Allende Prieto, Carlos
An, Deokkeun
Anderson, Scott F.
Aubourg, Eric
Balbinot, Eduardo
Beers, Timothy C.
Berlind, Andreas A.
Bickerton, Steven J.
Bizyaev, Dimitry
Blanton, Michael R.
Bochanski, John J.
Bolton, Adam S.
Bovy, Jo
Brandt, W. N.
Brinkmann, Jon
Brown, Peter J.
Brownstein, Joel R.
Busca, Nicolás G.
Campbell, Heather
Carr, Michael A.
Chen, Yanmei
Chiappini, Cristina
Comparat, Johan
Connolly, Natalia
Cortes, Marina
Croft, Rupert A. C.
Cuesta, Antonio J.
Da Costa, Luiz A. N.
Davenport, James R. A.
Dawson, Kyle S.
Dhital, Saurav
Ealet, Anne
Ebelke, Garrett L.
Edmondson, Edward M.
Eisenstein, Daniel J.
Escoffier, Stephanie
Esposito, Massimiliano
Miralda Escudé, Jordi
Verde, Licia
Keywords: Observacions astronòmiques
Astronomical observations
Spectrum analysis
Issue Date: 28-Mar-2011
Publisher: Institute of Physics (IOP)
Abstract: 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 Lyalpha forest, and a radial velocity search for planets around ~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 deg2 in the southern Galactic cap, bringing the total footprint of the SDSS imaging to 14,555 deg2, 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.
Note: Reproducció del document publicat a:
It is part of: Astrophysical Journal Supplement Series, 2011, vol. 193, num. 2, p. 29
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ISSN: 0067-0049
Appears in Collections:Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Institut de Biomedicina (IBUB))

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