Halo catalogs from RayGalGroupSims run of a LCDM-WMAP7 model specified by the following set of cosmological parameters: Ωm = 0.2573, Ωb = 0.04356, h = 0.72, ns = 0.963 and σ8 = 0.801. The simulation covers a (2625 Mpc/h)3 volume with Np = 40963 particles. Halos were detected with the Spherical Overdensity (SO) algorithm with the overdensity threshold set to Δ=200ρc where ρc is the critical density. The catalogs have a conservative mass cut to M200c ≥ 2·1013 Msun/h corresponding to halos with more than 104 particles.
Data files are in ascii format. The first row contains the total number of halos in the snapshot, the following rows contains the mass M200c, M500c and M1000c of each SO(200c) halo.
Fortran script for reading the files:
PROGRAM READ_HALO_CATALOGS IMPLICIT NONE INTEGER :: N_HALO REAL(8), DIMENSION(:), ALLOCATABLE :: M200c, M500c, M1000c OPEN(UNIT=2,FILE=FILE_INPUT,FORM='FORMATTED',STATUS='UNKNOWN',ACTION='READ') READ(2,*) N_HALO ALLOCATE(M200c(N_HALO),M500c(N_HALO),M1000c(N_HALO)) DO I = 1, N_HALO READ(2,*) M200c(I), M500c(I), M1000c(I) END DO END PROGRAM READ_HALO_CATALOGS
If you use these data please refer to:
P.S. Corasaniti, S. Ettori, Y. Rasera, M. Sereno, S. Amodeo, M.-A. Breton, V. Ghirardini, D. Eckert, “Probing Cosmology with Dark Matter Halo Sparsity Using X-ray Cluster Mass Measurements”, Astrophys. J. 862, 40 (2018), arXiv:1711.00480