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The Clustering of Luminous Red Galaxies at z ~ 0.7 from EBOSS and BOSS Data

Journal Article · · The Astrophysical Journal (Online)
 [1];  [2];  [2];  [3];  [2];  [4];  [5];  [5];  [6];  [7];  [6];  [8];  [8];  [9];  [8];  [10];  [10];  [11];  [12]
  1. New York Univ. (NYU), NY (United States); none
  2. New York Univ. (NYU), NY (United States)
  3. Ohio Univ., Athens, OH (United States)
  4. Univ. of Portsmouth (United Kingdom)
  5. Univ. of Sao Paulo (Brazil); Lab. Interinstitucional de e-Astronomia, Rio de Janeiro (Brazil)
  6. Univ. of Sao Paulo (Brazil); Astronomia, Rio de Janeiro (Brazil); Observatório Nacional, Rio de Janeiro (Brazil)
  7. Lab. Interinstitucional de e-Astronomia, Rio de Janeiro (Brazil); Univ. Federal do ABC, Santo Andre (Brazil); Univ. Estadual Paulista, Sao Paulo (Brazil)
  8. Univ. of Utah, Salt Lake City, UT (United States)
  9. Consejo Superior de Investigaciones Cientificas (CSIC), Madrid (Spain). Inst. de Física Teórica; Univ. Autonoma de Madrid (Spain)
  10. Univ. of Pittsburgh, PA (United States)
  11. Univ. de La Serena, La Serena (Chile)
  12. Pennsylvania State Univ., University Park, PA (United States)
+ Show Author Affiliations
We present the first scientific results from the luminous red galaxy (LRG) sample of the extended Baryon Oscillation Spectroscopic Survey (eBOSS) combined with the high-redshift galaxies of the previous BOSS sample. We measure the small- and intermediate-scale clustering from a sample of more than 97,000 galaxies in the redshift range $$0.6\lt z\lt 0.9$$. We interpret these measurements in the framework of the Halo Occupation Distribution. The bias of this sample of LRGs is 2.30 ± 0.03, with a satellite fraction of 13% ± 3% and a mean halo mass of $$2.5\times {10}^{13}\,{h}^{-1}\,{M}_{\odot }$$. These results are consistent with expectations, demonstrating that these LRGs will be reliable tracers of large-scale structure at $$z\sim 0.7$$. The galaxy bias implies a scatter of luminosity at fixed halo mass, $${\sigma }_{\mathrm{log}L}$$, of 0.19 dex. Using the clustering of massive galaxies from BOSS CMASS, BOSS LOWZ, and SDSS, we find that $${\sigma }_{\mathrm{log}L}=0.19$$ is consistent with observations over the full redshift range that these samples cover. The addition of eBOSS to previous surveys allows the investigation of the evolution of massive galaxies over the past ~7 Gyr.
Research Organization:
Ohio Univ., Athens, OH (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Grant/Contract Number:
SC0014329
OSTI ID:
1511014
Alternate ID(s):
OSTI ID: 22875695
Journal Information:
The Astrophysical Journal (Online), Journal Name: The Astrophysical Journal (Online) Journal Issue: 2 Vol. 848; ISSN 1538-4357
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (10)

Linear bias forecasts for emission line cosmological surveys journal May 2019
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 LRG sample: structure growth rate measurement from the anisotropic LRG correlation function in the redshift range 0.6 < z < 1.0 journal December 2019
Decorrelating the errors of the galaxy correlation function with compact transformation matrices journal March 2019
The SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations at Redshift of 0.72 with the DR14 Luminous Red Galaxy Sample journal August 2018
The Circumgalactic Medium of eBOSS Emission Line Galaxies: Signatures of Galactic Outflows in Gas Distribution and Kinematics journal October 2018
The Aemulus Project. III. Emulation of the Galaxy Correlation Function journal March 2019
The Extended Baryon Oscillation Spectroscopic Survey: Measuring the Cross-correlation between the Mg ii Flux Transmission Field and Quasars and Galaxies at z = 0.59 journal June 2019
The SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations at redshift of 0.72 with the DR14 Luminous Red Galaxy Sample text January 2017
The Aemulus Project III: Emulation of the Galaxy Correlation Function text January 2018
Decorrelating the errors of the galaxy correlation function with compact transformation matrices text January 2019

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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
cosmology: observations
galaxies: evolution
large-scale structure of universe