rnei, vrnei, vvrnei

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 cm^–3.
par5	Redshift.
norm	where D_A is the angular diameter distance to the source (cm), n_eand n_H (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 cm^–3.
par16	Redshift
norm	where D_A is the angular diameter distance to the source (cm), and n_{e ,} n_H (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 cm^–3.
par34	Redshift
norm	where D_A is the angular diameter distance to the source (cm), and n_{e ,} n_H (cm^-3) are the electron and hydrogen densities respectively.