Package pycosmicstar :: Module lcdmcosmology :: Class lcdmcosmology

Class lcdmcosmology

The Cold Dark Matter (CDM) plus Cosmolocical Constan (Lambda) -  lcdm

Keyword arguments:
    omegam -- (default 0.24) - The dark matter parameter

    omegab -- (default 0.04) - The barionic parameter

    omegal -- (default 0.73) - The dark energy parameter

    h -- (default 0.7) - The h of the Hubble constant (H = h * 100)

Instance Methods

[hide private]

__init__(self, omegam=0.24, omegab=0.04, omegal=0.73, h=0.7)

source code

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

source code

dr_dz(self, z)
Return the comove-radii

source code

H(self, z)
Return the Hubble parameter as a function of z.

source code

dV_dz(self, z)
Return the comove volume variation.

source code

dgrowth_dt(self, z)
Return the derivative of the growth function with respect to time.

source code

growthFunction(self, z)
Return the growth function

source code

sigma(self, kmass)
Return the sigma.

source code

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

source code

__sigma(self, kmass)

source code

rodm(self, z)
Return the dark matter density

source code

robr(self, z)
Return the barionic density.

source code

age(self, z)
Return the age of the Universe for some redshift.

source code

setCosmologicalParameter(self, omegam, omegab, omegal, h)
Set the cosmological parameters

source code

getCosmologicalParameter(self)
Return the cosmological parameter

source code

getDeltaC(self)
Return the critical density

source code

getTilt(self)

source code

getRobr0(self)
Return the barionic matter density at the present day.

source code

getRodm0(self)
Return the dark matter density at the present day.

source code

Method Details

[hide private]

dt_dz(self, z)

source code

Return the relation between the cosmic time and the redshift

Overrides: cosmology.cosmology.dt_dz: (inherited documentation)

dr_dz(self, z)

source code

Return the comove-radii

Overrides: cosmology.cosmology.dr_dz: (inherited documentation)

H(self, z)

source code

Return the Hubble parameter as a function of z.

Keyword arguments:
    z -- redshift

Overrides: cosmology.cosmology.H

dV_dz(self, z)

source code

Return the comove volume variation.

Keyword arguments:
    z -- redshift

Overrides: cosmology.cosmology.dV_dz

dgrowth_dt(self, z)

source code

Return the derivative of the growth function with
respect to  time.

Keyword arguments:
    z -- redshift

Overrides: cosmology.cosmology.dgrowth_dt

growthFunction(self, z)

source code

Return the growth function

Keyword arguments:
    z -- redshift

Overrides: cosmology.cosmology.growthFunction

sigma(self, kmass)

source code

Return the sigma.

Keyword arguments:
    kmass -- mass scale

Overrides: cosmology.cosmology.sigma

dsigma2_dk(self, kl)

source code

"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)

Overrides: cosmology.cosmology.dsigma2_dk

rodm(self, z)

source code

Return the dark matter density

Keyword arguments:
    z -- redshift

Overrides: cosmology.cosmology.rodm

robr(self, z)

source code

Return the barionic density.

Keyword arguments:
    z -- redshift

Overrides: cosmology.cosmology.robr

age(self, z)

source code

Return the age of the Universe for some redshift.

Keyword arguments:
    z -- redshift

Overrides: cosmology.cosmology.age

setCosmologicalParameter(self, omegam, omegab, omegal, h)

source code

Set the cosmological parameters

Overrides: cosmology.cosmology.setCosmologicalParameter

getCosmologicalParameter(self)

source code

Return the cosmological parameter

Overrides: cosmology.cosmology.getCosmologicalParameter

getTilt(self)

source code

Overrides: cosmology.cosmology.getTilt

getRobr0(self)

source code

Return the barionic matter density at the present day.

Overrides: cosmology.cosmology.getRobr0

getRodm0(self)

source code

Return the dark matter density at the present day.

Overrides: cosmology.cosmology.getRodm0