A detection of baryon acoustic oscillations from the distribution of galaxy clusters

Abstract

We calculate the correlation function of 79,091 galaxy clusters in the redshift region of $z\le 0.5$ selected from the WH15 cluster catalog. With a weight of cluster mass, a significant baryon acoustic oscillation (BAO) peak is detected on the correlation function with a significance of $3.7\sigma$. By fitting the correlation function with a $\Lambda$CDM model curve, we find $D_v(z=0.331)r_d^{fid}/r_d=1261.5\pm 48$~Mpc which is consistent with the Planck 2015 cosmology. We find that the correlation function of the higher mass sub-sample shows a higher amplitude at small scales of $r<80h^{-1}\mathrm{Mpc}$, which is consistent with our previous result. The 2D correlation function of this large sample of galaxy clusters shows a faint BAO ring with a significance of $1.8\sigma$, from which we find that the distance scale parameters on directions across and along the line-of-sight are ${\alpha }_{\sigma }=1.02\pm 0.06$ and ${\alpha }_{\pi }=0.94\pm 0.10$, respectively.

8 pages, 12 figures, 1 table; submitted to ApJ on Oct 7, accepted for publication in ApJ

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• The XXL Survey: XVI. The clustering of X-ray selected galaxy clusters at z~0.3
• 2MTF - VII. 2MASS Tully-Fisher survey final data release: distances for 2,062 nearby spiral galaxies
• C${}^3$-Cluster Clustering Cosmology I. New constraints on the cosmic growth rate at z~0.3 from redshift-space clustering anisotropies
• C${}^3$-Cluster Clustering Cosmology II. First detection of the BAO peak in the three-point correlation function of galaxy clusters
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• Does jackknife scale really matter for accurate large-scale structure covariances?
• Toward a direct measurement of the cosmic acceleration: the first preparation with FAST
• The cross-correlation of galaxies in absorption with the Lyman $\alpha$ forest
• Model Selection with Baryonic Acoustic Oscillations in the Lyman-alpha Forest
• Optically-detected galaxy cluster candidates in the $AKARI$ North Ecliptic Pole field based on photometric redshift from Subaru Hyper Suprime-Cam
• Quantum state evolution in an environment of cosmological perturbations
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• Forecasts for cosmological measurements based on the angular power spectra of AGN and clusters of galaxies in the SRG/eROSITA all-sky survey
• Traces of Anisotropic Quasi-Regular Structure in the SDSS Data