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MEDEA ( M ontecarlo E nergy DE position A nalysis)

Description of the code

We present here the results of our code MEDEA, based on a Monte Carlo scheme that makes possible to follow the fate of electrons of energies up to 1 Tev in their secondary energy cascade. Our results represent a substantial generalization of previous works that considered exclusively non-relativistic electrons.

We implement in the code a large number of interactions such as
  • collisional ionizations of H, He, He-I ;
  • collisional excitations of H, He;
  • electron-electron Coulomb scattering;
  • free-free interactions of electrons with protons;
  • IC with CMB photons;
  • direct collisional excitations to the 2s level of HI;
  • indirect cascades from n > 3 states of HI through the 2s level;
  • recombinations.
The energy range of the primary electron is 1 Mev < E_in < 1 Tev, the ionized fraction considered is 0.0001 < x_e < 0.99 and redshift spans 10 < z < 50 to account for the CMB.

Results

Please check our paper at the URL http://arxiv.org/abs/0911.1125 for a complete discussion of our results. You can dowload the data files in the attachement section below (Click on "ALLEGATI"). Results will be updated periodically.

References

-- http://arxiv.org/abs/0911.1125

-- CarmeloEvoli

-- MarcosValdes
Topic revision: r2 - 11 Nov 2009, MarcosValdes
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