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Title: Sloan Digital Sky Survey III photometric quasar clustering: Probing the initial conditions of the Universe

Here, the Sloan Digital Sky Survey has surveyed 14,555 square degrees of the sky, and delivered over a trillion pixels of imaging data. We present the large-scale clustering of 1.6 million quasars between z=0.5 and z=2.5 that have been classified from this imaging, representing the highest density of quasars ever studied for clustering measurements. This data set spans 0~ 11,00 square degrees and probes a volume of 80 h –3 Gpc 3. In principle, such a large volume and medium density of tracers should facilitate high-precision cosmological constraints. We measure the angular clustering of photometrically classified quasars using an optimal quadratic estimator in four redshift slices with an accuracy of ~ 25% over a bin width of δ l ~ 10–15 on scales corresponding to matter-radiation equality and larger (0ℓ ~ 2–3).
 [1] ;  [1] ;  [2] ;  [1] ;  [1] ;  [3] ;  [4] ;  [5] ;  [6] ;  [1] ;  [5] ;  [3] ;  [7] ;  [5] ;  [8] ;  [9] ;  [10] ;  [8] ;  [11] ;  [12] more »;  [12] « less
  1. Carnegie Mellon Univ., Pittsburgh, PA (United States)
  2. Univ. of Wyoming, Laramie, WY (United States); Max-Planck-Institut fur Astronomie, Heidelberg (Germany)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Univ. of Portsmouth, Portsmouth (United Kingdom)
  5. The Ohio State Univ., Columbus, OH (United States)
  6. Yale Univ., New Haven, CT (United States)
  7. Brookhaven National Lab. (BNL), Upton, NY (United States)
  8. Princeton Univ., Princeton, NJ (United States)
  9. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Drexel Univ., Philadelphia, PA (United States)
  10. Pennsylvania State Univ., University Park, PA (United States)
  11. Apache Point Observatory, Sunspot, NM (United States)
  12. CEA, Centre de Saclay, Gif-sur-Yvette (France)
Publication Date:
Report Number(s):
Journal ID: ISSN 1475-7516; KA2301020
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2015; Journal Issue: 05; Journal ID: ISSN 1475-7516
Institute of Physics (IOP)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
79 ASTRONOMY AND ASTROPHYSICS; power spectrum; redshift survey; inflation; cosmological parameters from LSS
OSTI Identifier: