The Uchuu-universe machine data set: galaxies in and around clusters

DOI: 
10.1093/mnras/stac3514
Publication date: 
15/02/2023
Main author: 
Aung, Han
IAA authors: 
Prada, Francisco;Pérez, Enrique;Ruedas, José
Authors: 
Aung, Han;Nagai, Daisuke;Klypin, Anatoly;Behroozi, Peter;Abdullah, Mohamed H.;Ishiyama, Tomoaki;Prada, Francisco;Pérez, Enrique;López Cacheiro, Javier;Ruedas, José
Journal: 
Monthly Notices of the Royal Astronomical Society
Publication type: 
Article
Volume: 
519
Pages: 
1648
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 haloes in the Uchuu N-body cosmological simulation. It includes a variety of baryonic properties for all galaxies down to ~5 × 10<SUP>8</SUP> M<SUB>⊙</SUB> with haloes in a mass range of 10<SUP>10</SUP> &lt; M<SUB>halo</SUB>/M<SUB>⊙</SUB> &lt; 5 × 10<SUP>15</SUP> up to redshift z = 10. Uchuu-UM includes more than 10<SUP>4</SUP> cluster-size haloes in a volume of 8(h<SUP>-1</SUP>Gpc)<SUP>3</SUP>, 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 haloes. Overall, the number density profile of galaxies in dark matter haloes 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 colour 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 towards the inner regions of clusters. The publicly available Uchuu-UM galaxy catalogue presented here can serve to model ongoing and upcoming large galaxy surveys.
Database: 
ADS
URL: 
https://ui.adsabs.harvard.edu/#abs/2023MNRAS.519.1648A/abstract
ADS Bibcode: 
2023MNRAS.519.1648A
Keywords: 
methods: numerical;galaxies: clusters: general;dark matter;large-scale structure of Universe;cosmology: theory;Astrophysics - Astrophysics of Galaxies;Astrophysics - Cosmology and Nongalactic Astrophysics