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rnei, vrnei, vvrnei: non-equilibrium recombining collisional plasma

Non-equilibrium ionization collisional plasma model. This is a beta test version of a model for a recombining plasma where the plasma is assumed to have started in collisional equilibrium with the initial temperature given by the relevant input parameter. This model will only work for NEIVERS 3.0 and above. The default is 3.0.

The vrnei variant allows the user to set the abundances of the most common elements and vvrnei allows the user to set the abundances of all elements with Z<=30.

 

For the rnei model the parameters are:

 

par1

Plasma temperature (keV).

par2

Initial plasma temperature (keV).

par3

Metal abundances (He fixed at cosmic). Abundances are wrt Solar and defined by the abund command.

par4

Ionization timescale in units of s cm3.

par5

Redshift.

norm

where DA is the angular diameter distance to the source (cm), ne and nH (cm-3) are the electron and hydrogen densities respectively.

 

For vrnei the parameters are:

 

par1

Plasma temperature (keV).

par2

Initial plasma temperature (keV).

par3-par14

Abundances for He, C, N, O, Ne, Mg, Si, S, Ar, Ca, Fe, Ni wrt Solar (defined by the abund command)

par15

Ionization timescale in units of s cm3.

par16

Redshift

norm

where DA is the angular diameter distance to the source (cm), and ne , nH (cm-3) are the electron and hydrogen densities respectively.

 

For vvrnei the parameters are:

 

par1

Plasma temperature (keV).

par2

Initial plasma temperature (keV).

par3-par32

Abundances for all elements with Z <= 30 wrt Solar (defined by the abund command)

par33

Ionization timescale in units of s cm3.

par34

Redshift

norm

where DA is the angular diameter distance to the source (cm), and ne , nH (cm-3) are the electron and hydrogen densities respectively.

 

 

next up previous contents
Next: Sedov Up: Additive Model Components Previous: Refsch