English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present a direct measurement of the mean halo occupation distribution(HOD) of galaxies taken from the eleventh data release (DR11) of the SloanDigital Sky Survey-III Baryon Oscillation Spectroscopic Survey (BOSS). The HODof 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 halos of174 X-ray-selected galaxy clusters drawn from the XMM Cluster Survey (XCS).Halo masses are determined for each galaxy cluster based on X-ray temperaturemeasurements, and range between ${\rm log_{10}} (M_{180}/M_{\odot}) = 13-15$.Our directly measured HODs are consistent with the HOD-model fits inferred viathe galaxy-clustering analyses of Parejko et al. for the BOSS LOWZ sample andWhite et al. for the BOSS CMASS sample. Under the simplifying assumption thatthe other parameters that describe the HOD hold the values measured by theseauthors, we have determined a best-fit alpha-index of 0.91$\pm$0.08 and$1.27^{+0.03}_{-0.04}$ for the CMASS and LOWZ HOD, respectively. Thesealpha-index values are consistent with those measured by White et al. andParejko et al. In summary, our study provides independent support for the HODmodels assumed during the development of the BOSS mock-galaxy catalogues thathave subsequently been used to derive BOSS cosmological constraints.

The XMM Cluster Survey: The Halo Occupation Number of BOSS galaxies in X-ray clusters