In:
The Astrophysical Journal Supplement Series, American Astronomical Society, Vol. 203, No. 2 ( 2012-12-01), p. 21-
Abstract:
The Sloan Digital Sky Survey III (SDSS-III) presents the first spectroscopic data
from the Baryon Oscillation Spectroscopic Survey (BOSS). This ninth data release (DR9) of the SDSS project includes 535,995 new galaxy spectra (median z ∼ 0.52), 102,100 new quasar spectra (median z ∼ 2.32), and 90,897 new stellar spectra, along with the
data presented in previous data releases. These spectra were obtained with the new BOSS spectrograph and were taken between 2009 December and 2011 July. In
addition, the stellar parameters pipeline, which determines radial velocities, surface temperatures, surface gravities, and metallicities of stars, has been
updated and refined with improvements in temperature estimates for stars with T eff 〈 5000 K and in metallicity estimates
for stars with [Fe/H] 〉 -0.5. DR9 includes new stellar parameters for all
stars presented in DR8, including stars from SDSS-I and II, as well as those observed as part of the SEGUE-2. The astrometry error introduced in the DR8 imaging catalogs has been corrected in the DR9 data products. The next data
release for SDSS-III will be in Summer 2013, which will present the first data from the APOGEE along with another year of data from BOSS, followed by the final
SDSS-III data release in 2014 December.
Type of Medium:
Online Resource
ISSN:
0067-0049
,
1538-4365
DOI:
10.1088/0067-0049/203/2/21
Language:
Unknown
Publisher:
American Astronomical Society
Publication Date:
2012
detail.hit.zdb_id:
2006860-8
detail.hit.zdb_id:
2207650-5
SSG:
16,12
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