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

Non-equilibrium ionization collisional plasma model. This is 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 xset neivers 3.0 and above. Additional xset options are available and are listed under the documentation for nei.

For the rnei model the parameters are:

par1 Plasma temperature (keV)
par2 Initial plasma temperature (keV)
par3 Metal abundances (He fixed at cosmic). The elements included are C, N, O, Ne, Mg, Si, S, Ar, Ca, Fe, Ni. Abundances are defined by the abund command
par4 Ionization timescale in units of s/cm$^3$.
par5 redshift
norm $(10^{-14}/(4\pi[D_A(1+z)]^2))\int n_en_H dV$, where $D_A$ is the angular diameter distance to the source (cm), $n_e$ is the electron density (cm$^{-3}$), and $n_H$ is the hydrogen density (cm$^{-3}$).

For the vrnei model, the parameters are:

par1 Plasma temperature (keV)
par2 Initial plasma temperature (keV)
par3 H abundance (set to 0 for no free-free continuum, otherwise 1)
par4-par15 Abundances for He, C, N, O, Ne, Mg, Si, S, Ar, Ca, Fe, Ni wrt Solar (defined by the abund command)
par16 Ionization timescale in units of s/cm$^3$.
par17 Redshift, z
norm $(10^{-14}/(4\pi[D_A(1+z)]^2))\int n_en_H dV$, where $D_A$ is the angular diameter distance to the source (cm), $n_e$ is the electron density (cm$^{-3}$), and $n_H$ is the hydrogen density (cm$^{-3}$).

Finally, for the vvrnei model, the parameters are:

par1 Plasma temperature (keV)
par2 Initial plasma temperature (keV)
par3 H abundance (set to 0 for no free-free continuum, otherwise 1)
par4-par32 Abundances for all elements with 2 $\leq$ Z $\leq$ 30 wrt Solar (defined by the abund command)
par33 Ionization timescale in units of s/cm$^3$.
par34 Redshift, z
norm $(10^{-14}/(4\pi[D_A(1+z)]^2))\int n_en_H dV$, where $D_A$ is the angular diameter distance to the source (cm), $n_e$ is the electron density (cm$^{-3}$), and $n_H$ is the hydrogen density (cm$^{-3}$).


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Next: sedov, vsedov, vvsedov: sedov Up: Additive Model Components Previous: relline, relline_lp, relline_lp_ext: relativistic