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3 Results. Calculated lines

Here we present two sets of tables. The first includes the tables of the autocorrelation functions for dipolar emission (one photon) and for two-photon absorption obtained in the simulations. The second are the tables of the emission and polarization profiles calculated from the autocorrelation functions obtained in the simulations.

For each case considered in the simulation we present four files: 1) The autocorrelation function of the dipolar emission processes in the transition from level n=2 to level n=1. 2) The autocorrelation function of the two photon absorption process in the transition from the n=1 to the n=2 level. 3) Stark broadened spectral profiles of the Lyman alpha dipolar emission with fine structure. 4) Stark broadened profiles that could be obtained in a two-photon polarization spectroscopy experiment for the same transition, along with fine structure.

As the simulation processes include ion dynamics effects, each one of these files has the results that correspond to five different values of the reduced mass $\mu$ of the emitter-perturber pair. More precisely, each file includes the results corresponding to $\mu$ = 0.5, 0.8, 0.9, 1.0 and 2.0 (measured in units of proton mass).

The tables are ordered according to the parameter $\rho$ that characterizes the simulations. For the same value of $\rho$ the tables are organized in increasing values of the electron density.

The autocorrelation function files have, then, eleven columns, the first one corresponding to the time step (in seconds), followed by five pairs of columns corresponding to the five values of $\mu$. Each pair is formed by the $C_{\rm R}(t)$ and $C_{\rm I}(t)$ parts of the autocorrelation function. The name of the files are rXXnYYYY.c1p or rXXnYYYY.c2p, where XX and YYYY correspond, respectively, to $100\times\rho$ and to $100\times\log{(N_{\rm e})}$, $\rho$ and $N_{\rm e}$ being the values of the parameter $\rho$ and of the electron density for which the calculation was made. The c1p and c2p mean, respectively, correlation function for one photon emission and correlation function for two-photon absorption. An example of a correlation function file is given in Table 1.


   
Table 3: Temperature of the plasma - in K - of the simulation conditions considered
log $N_{\rm e}$ $\rho$  
${\rm m}^{-3}$ 0.10 0.15 0.20 0.25 0.30 0.40 0.50 0.60 0.70
19.67 29041 12907 7260 4647 - - - - -
20.00 37508 16670 9377 6001 4168 - - - -
20.33 48444 21531 12111 7751 5383 - - - -
20.67 62568 27808 15642 10011 6952 3910 - - -
21.00 80809 35915 20202 12929 8979 5051 3232 2245 -
21.33 104369 46386 26092 16699 11597 6523 4175 2899 -
21.67 - 59910 33699 21568 14978 8425 5392 3744 -
22.00 - 77377 43525 27856 19344 10881 6964 4836 3553
22.33 - - 56214 35977 24984 14054 8994 6246 4589
22.67 - - - 46466 32268 18151 11617 8067 5927
23.00 - - - 60013 41676 23443 15003 10419 7655

The profile files have six columns, where the first one is the displacement in wavelength measured in meters from the wavelength that corresponds to the transition from the center of the fine structure sublevels of the level n=2 to the level n=1. The other five columns show the areanormalized profiles obtained for the five values of $\mu$. The tabulated profiles give only the central part of the transition (to more or less $\frac{1}{10}$ of the peak intensity), because the plasma model employed in the simulation does not allow calculations far away from the center of the line. The name of the profiles files are rXXnYYYY.d1p or rXXnYYYY.p2p, where XX and YYYY have the same meaning as before, and the d1p and p2p mean, respectively, one photon dipolar emission profile and two-photon polarization profile. An example of a profile file is given in Table 2.

Table 3 summarizes the cases considered in the simulations and indicates the equilibrium temperature of the plasma for each value of $\rho$ and $N_{\rm e}$.

The values of $C_{\rm R}(t)$ and $C_{\rm I}(t)$ given in the tables are those obtained directly from the computer simulations. However, the profiles given in the tables have been calculated from a smoothed autocorrelation function. These smooth functions have been obtained fitting their last channels to functions like


\begin{displaymath}%
A {\rm e}^{-\gamma t} \cos(\omega t + \varphi)\;.
\end{displaymath} (10)

In addition, this fit avoids the appearance of a ${\rm sinc}(\Delta\omega)$ convolved in the Fourier transform.

Acknowledgements
This work has been financed by the Universidad de Valladolid, by the DGICYT (project PB97-0472) and the Junta de Castilla y León (project VA03/00B).


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