The Uchuu-UniverseMachine dataset: Galaxies in and around Clusters

Abstract

We present the public data release of the Uchuu-UM galaxy catalogues by applying the UniverseMachine algorithm to assign galaxies to the dark matter halos in the Uchuu $N$-body cosmological simulation. It includes a variety of baryonic properties for all galaxies down to $\sim 5\times 10^8{M}_{\odot }$ with halos in a mass range of $10^{10}<M_{\mathrm{halo}}/M_{\odot }<5\times 10^{15}$ up to redshift $z=10$. Uchuu-UM includes more than $10^4$ cluster-size halos in a volume of $8(h^{-1}\mathrm{Gpc}{)}^3$, reproducing observed stellar mass functions across the redshift range of $z=0-7$, galaxy quenched fractions, and clustering statistics at low redshifts. Compared to the previous largest UM catalogue, the Uchuu-UM catalogue includes significantly more massive galaxies hosted by large-mass dark matter halos. Overall, the number density profile of galaxies in dark matter halos follows the dark matter profile, with the profile becoming steeper around the splashback radius and flattening at larger radii. The number density profile of galaxies tends to be steeper for larger stellar masses and depends on the color of galaxies, with red galaxies having steeper slopes at all radii than blue galaxies. The quenched fraction exhibits a strong dependence on the stellar mass and increases toward the inner regions of clusters. The publicly available Uchuu-UM galaxy catalogue presented here can serve to model ongoing and upcoming large galaxy surveys.

arXiv comment10 pages, 11 figures, accepted by MNRAS, public data available at http://www.skiesanduniverses.org/

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• The Uchuu-GLAM BOSS and eBOSS LRG lightcones: Exploring clustering and covariance errors
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• Constraining cosmological parameters using void statistics from the SDSS survey
• Baryon Pasting the Uchuu Lightcone Simulation
• Cross-correlation between soft X-rays and galaxies A new benchmark for galaxy evolution models
• Improving the Determination of Supernova Cosmological Redshifts by Using Galaxy Groups
• CLASH-VLT: The variance in the velocity anisotropy profiles of galaxy clusters
• Impact of the large-scale cosmic web on the X-ray emitting circumgalactic medium
• Cross-correlations between X-ray clusters and the general galaxy population
• Dynamical Properties and Velocity Dispersion-Mass Relation of $z\sim 1$ Galaxy Clusters from the GOGREEN and GCLASS Surveys