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Title: SDSS-IV eBOSS emission-line galaxy pilot survey

Journal Article · · Astronomy and Astrophysics

The Sloan Digital Sky Survey IV extended Baryonic Oscillation Spectroscopic Survey (SDSS-IV/eBOSS) will observe 195 000 emission-line galaxies (ELGs) to measure the baryonic acoustic oscillation (BAO) standard ruler at redshift 0.9. To test different ELG selection algorithms, 9000 spectra were observed with the SDSS spectrograph as a pilot survey based on data from several imaging surveys. First, using visual inspection and redshift quality flags, we show that the automated spectroscopic redshifts assigned by the pipeline meet the quality requirements for a reliable BAO measurement. We also show the correlations between sky emission, signal-to-noise ratio in the emission lines, and redshift error. Then we provide a detailed description of each target selection algorithm we tested and compare them with the requirements of the eBOSS experiment. As a result, we provide reliable redshift distributions for the different target selection schemes we tested. Finally, we determine an target selection algorithms that is best suited to be applied on DECam photometry because they fulfill the eBOSS survey efficiency requirements.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
eBOSS
Grant/Contract Number:
AC02-07CH11359; AC02-05CH11231
OSTI ID:
1369231
Alternate ID(s):
OSTI ID: 1454480
Report Number(s):
arXiv:1509.05045; FERMILAB-PUB-15-663-A-AE; 1393724; TRN: US1702089
Journal Information:
Astronomy and Astrophysics, Vol. 592; ISSN 0004-6361
Publisher:
EDP SciencesCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 31 works
Citation information provided by
Web of Science

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Cited By (12)

Active galactic nuclei and their large-scale structure: an eROSITA mock catalogue journal May 2019
The effect of assembly bias on redshift-space distortions journal March 2019
Spherical collapse and cluster number counts in dark energy models disformally coupled to dark matter journal July 2018
Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe journal June 2017
The Circumgalactic Medium of eBOSS Emission Line Galaxies: Signatures of Galactic Outflows in Gas Distribution and Kinematics journal October 2018
Mass–Metallicity Relation and Fundamental Metallicity Relation of Metal-poor Star-forming Galaxies at 0.6 < Z < 0.9 from the eBOSS Survey journal December 2018
Evolution of Star-forming Galaxies from z = 0.7 to 1.2 with eBOSS Emission-line Galaxies journal January 2019
The Mass–Metallicity Relation at z ∼ 0.8: Redshift Evolution and Parameter Dependency journal November 2019
Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe text January 2017
Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe text January 2017
Spherical collapse and cluster number counts in dark energy models disformally coupled to dark matter text January 2018
The Effect of Assembly Bias on Redshift Space Distortions text January 2018


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