Uchuu Simulations

Uchuu is a 2.1 trillion N-body simulation that uses Planck cosmology. It was produced with the GreeM code (Ishiyama et al. 2009, Ishiyama et al. 2012) at the ATERUI II supercomputer in Japan. Another two boxes were run with the same resolution but different volumes (mini-Uchuu, micro-Uchuu); and a third one with higher resolution (Shin-Uchuu). The Uchuu Project has also made use of the skun6@IAA computer facility in Spain. More details are given in our Uchuu Data Release Publications.


Uchuu public data access is available only through this Skies & Universes site.

cosmological parameters
Planck2015 (table 4, rightmost column)
Ω_m = 0.3089 Ω_L = 0.6911 h = 0.6774
σ_8 = 0.8159 Ω_b = 0.0486 ns = 0.9667
Linear Power Spectrum
z_init = 127 (2LPT)

uchuuaward

Simulation Name

Lbox

Mpc/h

Npart

 

Mpart

Msun/h

Snap

Halo

Tree

DM

Lens

Gal

Uchuu

2000

12800^3

3.27e8

List1

Yes

Yes

Yes

Soon

Yes

mini-Uchuu

400

2560^3

3.27e8

List2

Yes

Yes

Yes

 

Soon

micro-Uchuu

100

640^3

3.27e8

List3

Yes

Yes

Yes

 

Soon

Shin-Uchuu

140

6400^3

8.97e5

List4

Yes

Yes

Yes

 

Soon

 

Uchuu is a Japanese word meaning Universe.