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| -rwxr-xr-x | bin/fg21sim-download-cluster-data | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/bin/fg21sim-download-cluster-data b/bin/fg21sim-download-cluster-data index 34e84a6..a3708fd 100755 --- a/bin/fg21sim-download-cluster-data +++ b/bin/fg21sim-download-cluster-data @@ -16,6 +16,43 @@ and can be downloaded from: The catalog data is downloaded, extracted, transformed, and finally saved to a CSV file. + + +Catalog Description +------------------- +The Hubble Volume Project is a joint effort of the Virgo Consortium and +Collaborators in U.S., Canada, U.K., and Germany. To study the formation +of clusters of galaxies, filaments and void-structures, a significant +fraction of the entire observable Universe is modeled and simulated by +employing one billion (1e9) mass particles. [Evard2002]_ + +The ΛCDM cosmological model, one of the two models adopted by the Project, +has the following parameters: + + Ω_m = 0.3, Ω_Λ = 0.7, h = 0.7, σ_8 = 0.9 + Cube side length: 3000 h^-1 Mpc + Main slice: 3000 x 3000 x 30 h^-3 Mpc^3 + P^3M: z_init = 35, s = 100 h^-1 kpc + 1000^3 particles, 1024^3 mesh + M_particle = 2.25e12 h^-1 M_⊙ + +The retrieved catalog of the galaxy clusters is derived from a *spherical +overdensity* method applied to the *deep wedge* light-cone particle data, +with overdensity threshold Δ=200. The deep wedge lightcone covers +10x10 deg^2, with a maximum LoS distance of 5100 h^-1 Mpc, and a redshift +coverage limit of 4.37. The coordinates used in the catalog are mapped +to 0-1 unit, and as for the deep wedge catalog, the origin is at (0, 0, 0), +and is directed toward (1, 1, 1). + + +References +---------- +.. [Evard2002] + Evard, A. E. et al., + "Galaxy Clusters in Hubble Volume Simulations: Cosmological Constraints + from Sky Survey Populations", + 2002, ApJ, 573, 7-36, + http://adsabs.harvard.edu/abs/2002ApJ...573....7E """ |