NcHICosmoQConst

NcHICosmoQConst — Kinetic model -- Constant deceleration function

Properties

gdouble Dc Read / Write
gboolean Dc-fit Read / Write
gdouble E Read / Write
gboolean E-fit Read / Write
gdouble H0 Read / Write
gboolean H0-fit Read / Write
gdouble Omegat Read / Write
gboolean Omegat-fit Read / Write
gdouble q Read / Write
gboolean q-fit Read / Write
gdouble zs Read / Write
gboolean zs-fit Read / Write

Object Hierarchy

    GEnum
    ╰── NcHICosmoQConstParams
    GObject
    ╰── NcmModel
        ╰── NcHICosmo
            ╰── NcHICosmoQConst

Description

The deceleration function is defined as a constant, $q(z) = q_0$. The comoving distance in units of the Hubble radius today is

$$D_c(z) = CD + \frac{(1+ z_1)^{-q_0}}{q_0} \left[ 1 - \left( \frac{1+z}{1+z_1} \right)^{-q_0} \right],$$ where CD is the comoving distance from 0 to $z_1$.

Functions

nc_hicosmo_qconst_new ()

NcHICosmoQConst *
nc_hicosmo_qconst_new (void);

FIXME

Returns

FIXME

Types and Values

enum NcHICosmoQConstParams

Members

NC_HICOSMO_QCONST_H0

Hubble constant

 

NC_HICOSMO_QCONST_OMEGA_T

total energy density of the universe

 

NC_HICOSMO_QCONST_CD

comoving distance in units of the Hubble radius today

 

NC_HICOSMO_QCONST_E

normalized Hubble function at Z1

 

NC_HICOSMO_QCONST_Q

constant vlaue of the deceleration function

 

NC_HICOSMO_QCONST_Z1

initial redshift

 

NC_HICOSMO_QCONST_DEFAULT_H0

#define NC_HICOSMO_QCONST_DEFAULT_H0      ncm_c_hubble_cte_wmap ()

NC_HICOSMO_QCONST_DEFAULT_OMEGA_T

#define NC_HICOSMO_QCONST_DEFAULT_OMEGA_T ( 1.0)

NC_HICOSMO_QCONST_DEFAULT_CD

#define NC_HICOSMO_QCONST_DEFAULT_CD      ( 0.0)

NC_HICOSMO_QCONST_DEFAULT_E

#define NC_HICOSMO_QCONST_DEFAULT_E       ( 1.0)

NC_HICOSMO_QCONST_DEFAULT_Q

#define NC_HICOSMO_QCONST_DEFAULT_Q       (-0.5)

NC_HICOSMO_QCONST_DEFAULT_Z1

#define NC_HICOSMO_QCONST_DEFAULT_Z1      ( 0.0)

Property Details

The “Dc” property

  “Dc”                       gdouble

D_c.

Flags: Read / Write

Allowed values: [-50,50]

Default value: 0


The “Dc-fit” property

  “Dc-fit”                   gboolean

D_c:fit.

Flags: Read / Write

Default value: FALSE


The “E” property

  “E”                        gdouble

E.

Flags: Read / Write

Allowed values: [0,50]

Default value: 1


The “E-fit” property

  “E-fit”                    gboolean

E:fit.

Flags: Read / Write

Default value: FALSE


The “H0” property

  “H0”                       gdouble

H_0.

Flags: Read / Write

Allowed values: [10,500]

Default value: 73


The “H0-fit” property

  “H0-fit”                   gboolean

H_0:fit.

Flags: Read / Write

Default value: FALSE


The “Omegat” property

  “Omegat”                   gdouble

\Omega_{t0}.

Flags: Read / Write

Allowed values: [-5,5]

Default value: 1


The “Omegat-fit” property

  “Omegat-fit”               gboolean

\Omega_{t0}:fit.

Flags: Read / Write

Default value: FALSE


The “q” property

  “q”                        gdouble

q.

Flags: Read / Write

Allowed values: [-50,50]

Default value: -0.5


The “q-fit” property

  “q-fit”                    gboolean

q:fit.

Flags: Read / Write

Default value: TRUE


The “zs” property

  “zs”                       gdouble

z_\star.

Flags: Read / Write

Allowed values: [0,5]

Default value: 0


The “zs-fit” property

  “zs-fit”                   gboolean

z_\star:fit.

Flags: Read / Write

Default value: FALSE