Simulations with variable OmegaMatter

Authors: Andrés Nicolás Ruiz
Contact: andres.ruiz@unc.edu.ar
Pub-Date: 2024
Last modification: 2024

Description

17 pairs (A+B) of simulations with different values of $\Omega{M}. $. Simulations have$ 512^3 $dark-matter particles in a comoving cubic volume of$ 500h^{-1} $Mpc on a side. Values of$ \Omega{M} $range from$ 0.10 $to$ 0.50 $, equally sampled in intervals of$ 0.025 $. Simulations were run with Gadget-4 [1], using power spectra generated with CAMB [2]. In all cases we use fixed comological parameter for$ \Omega_b = 0.05 $,$ h=0.67 $,$ \sigma8 = 0.81 $,$ n=0.96 $and$ \Omega{\Lambda} = 1 - $\Omega_M$ . The A+B pair follows the paired-fixed approach to suppress cosmic variance [3].

Data available

Snapshot at $z=0$ and Rockstar [4] halo catalogues (ascii and binary)

References

[1] Springel V., Pakmor R., Zier O. & Reinecke M., 2021, MNRAS, 506, 2871 (https://wwwmpa.mpa-garching.mpg.de/gadget4/)
[2] Lewis A., Challinor A. & Lasenby A., 2000, ApJ, 538, 473 (https://camb.readthedocs.io/en/latest/)
[3] Angulo R. E. & Pontzen A., 2016, MNRAS, 462, L1.
[4] Behroozi P. S., Wechsler R. H. & Wu H.-Y., 2013, ApJ, 762, 109 (https://bitbucket.org/gfcstanford/rockstar/src/main/)