The XMM Cluster Survey: the halo occupation number of BOSS galaxies in X-ray clusters
Journal Article
·
· Monthly Notices of the Royal Astronomical Society
more »
- Texas A & M Univ., College Station, TX (United States); Univ. of Sussex, Brighton (United Kingdom)
- Univ. of Sussex, Brighton (United Kingdom)
- Univ. of Portsmouth (United Kingdom)
- Liverpool John Moores Univ. (United Kingdom)
- Univ. of Oxford (United Kingdom)
- Univ. Autonoma de Madrid (Spain)
- Univ. of KwaZulu-Natal, Durban (South Africa). Astrophysics & Cosmology Research Unit. School of Mathematics, Statistics & Computer Science
- Ludwig Maximilian Univ., Munich (Germany)
- Univ. of Manchester (United Kingdom)
- Univ. of Edinburgh, Scotland (United Kingdom)
- Univ. of Michigan, Ann Arbor, MI (United States)
- Univ. of Washington, Seattle, WA (United States)
- Univ. Autonoma de Madrid (Spain); Consejo Superior de Investigaciones Cientificas (CSIC), Granada (Spain)
- Univ. of Portsmouth (United Kingdom); The Ohio State Univ., Columbus, OH (United States)
- Pennsylvania State Univ., University Park, PA (United States)
- Inst. de Astrofísica de Canarias (IAC),Tenerife (Spain)
- Univ. do Porto (Portugal)
- Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Case Western Reserve Univ., Cleveland, OH (United States)
We present a direct measurement of the mean halo occupation distribution (HOD) of galaxies taken from the eleventh data release (DR11) of the Sloan Digital Sky Survey-III Baryon Oscillation Spectroscopic Survey (BOSS). The HOD of BOSS low-redshift (LOWZ: 0.2 < z < 0.4) and Constant-Mass (CMASS: 0.43 < z <0.7) galaxies is inferred via their association with the dark matter haloes of 174 X-ray-selected galaxy clusters drawn from the XMM Cluster Survey (XCS). Halo masses are determined for each galaxy cluster based on X-ray temperature measurements, and range between log10(M180/M⊙) = 13 and 15. Our directly measured HODs are consistent with the HOD-model fits inferred via the galaxy-clustering analyses of Parejko et al. for the BOSS LOWZ sample and White et al. for the BOSS CMASS sample. Under the simplifying assumption that the other parameters that describe the HOD hold the values measured by these authors, we have determined a best-fitting alpha-index of 0.91 ± 0.08 and 1.27$$^{+0.03}_{-0.04} $$ for the CMASS and LOWZ HOD, respectively. These alpha-index values are consistent with those measured by White et al. and Parejko et al. In summary, our study provides independent support for the HOD models assumed during the development of the BOSS mock-galaxy catalogues that have subsequently been used to derive BOSS cosmological constraints.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1530261
- Journal Information:
- Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Journal Issue: 2 Vol. 463; ISSN 0035-8711
- Publisher:
- Royal Astronomical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Halo occupation distribution (HOD) modelling of high redshift galaxies using the BlueTides simulation
|
journal | August 2018 |
Exploring relations between BCG and cluster properties in the SPectroscopic IDentification of eROSITA Sources survey from 0.05
|
journal | June 2018 |
Similar Records
The Clustering of Luminous Red Galaxies at z ~ 0.7 from EBOSS and BOSS Data
The weak lensing signal and the clustering of BOSS galaxies. I. Measurements
The Clustering of Luminous Red Galaxies at z ∼ 0.7 from EBOSS and BOSS Data
Journal Article
·
Thu Oct 12 20:00:00 EDT 2017
· The Astrophysical Journal (Online)
·
OSTI ID:1511014
The weak lensing signal and the clustering of BOSS galaxies. I. Measurements
Journal Article
·
Wed Jun 10 00:00:00 EDT 2015
· Astrophysical Journal
·
OSTI ID:22883113
The Clustering of Luminous Red Galaxies at z ∼ 0.7 from EBOSS and BOSS Data
Journal Article
·
Fri Oct 20 00:00:00 EDT 2017
· Astrophysical Journal
·
OSTI ID:22875695