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 $\Omega{M}$ Ω . 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/)