FLASH4.6.1 API

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TABLE OF CONTENTS


[Functions] source/physics/Cosmology/Cosmology_computeDeltaCrit

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NAME

  Cosmology_computeDeltaCrit

SYNOPSIS

  Cosmology_computeDeltaCrit(real, intent(in)  :: z,
                             real, intent(inout)  :: dcrit,
                             real, intent(inout)  :: dcritdz,
                             real, intent(inout)  :: d,
                             integer, intent(in)  :: n,
                             real, intent(in)  :: omega0,
                             real, intent(in)  :: h0,
                             real, intent(in)  :: lambda0,
                             real, intent(in)  :: omegatot)

DESCRIPTION

   Computes the (linear) overdensity at turnaround in the
   spherical collapse model at the given redshifts.  
   See Lacey and Cole 1993, MNRAS 262, 627 (appendix).

ARGUMENTS

   z : Array of redshifts

   dcrit : Array of changes in the critical overdensity

   dcritdz : Array of the critial overdensity derivative with respect to
             the cosmological redshift.

   d : Array of linear perturbations at the given redshifts

   n : Number of elements in arrays passed in 

   omega0 : Present-day mass density

   h0 : Hubble Constant

   lambda0 : Cosmolofical constandt density 

   omegatot : Total present-day mass density