anatoly_concentration¶

halotools.halo_occupation.anatoly_concentration(logM)[source] [edit on github]¶

Power law fitting formula for the concentration-mass relation of Bolshoi host halos at z=0 Taken from Klypin et al. 2011, arXiv:1002.3660v4, Eqn. 12.

$c(M) = c_{0}(M/M_{piv})^{\alpha}$

Parameters:

logM : array

array of $log_{10}M_{vir}$ of halos in catalog

Returns:

concentrations : array

Notes

This is currently the only concentration-mass relation implemented. This will later be bundled up into a class with a bunch of different radial profile methods, NFW and non-.

Values are currently hard-coded to Anatoly’s best-fit values:

$c_{0} = 9.6$

$\alpha = -0.075$

$M_{piv} = 10^{12}M_{\odot}/h$

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anatoly_concentration¶

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