Corpus ID: 118681341

Some remarks about the old problem of recombination

  title={Some remarks about the old problem of recombination},
  author={Francisco Jim'enez Forteza and Juan Betancort Rijo},
Context: In the seminal works of Zeldovich et al. (1968) and Peebles (1968), a procedure was outlined to obtain the equation of evolution of the hydrogen fraction without an explicit use of the radiative transfer equation. This procedure is based, explicitly or implicitly, on the concept of escape probability and, using the Sobolev approximation for this problem Sobolev (1960), has extensively been used since then in developing refined approximations. Aims: To derive in a simple, rigorous and… CONTINUE READING

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