Class cosmology

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Instance Methods

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dt_dz(self, z)
Return the relation between the cosmic time and the redshift

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dr_dz(self, z)
Return the comove-radii

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dV_dz(self, z)
Return the comove volume

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rodm(self, z)
Return the Dark Matter Density

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robr(self, z)
Return the Barionic Matter Density

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H(self, z)
Return the Hubble Parameter

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dgrowth_dt(self, z)
Return the derivative of growth function of the primordial perturbations

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growthFunction(self, z)
Return the growth function of the primordial perturbations

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dsigma2_dk(self, kl)
"Return the integrating of sigma(M,z) for a top-hat filtering.

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sigma(self)
Return the variance of the linear density field.

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age(self, z)
Return the age of the Universe for a given z

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setCosmologicalParameter(self)

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getCosmologicalParameter(self)

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getTilt(self)

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getRobr0(self)

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getRodm0(self)

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Method Details

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dsigma2_dk(self, kl)

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"Return the integrating of sigma(M,z) for a top-hat filtering. In z = 0 return sigma_8, for z > 0 return sigma(M,z)

sigma(self)

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Return the variance of the linear density field. As pointed out by Jenkis et al. (2001), this definition of the mass function has the advantage that it does not explicitly depend on redshift, power spectrum or cosmology.