Abstract:We investigate the possibility of maser amplification in hydrogen recombination lines from the galaxies of first generation, at z 30. Combining analytical and computational approaches, we show that the transitions between the hydrogen Rydberg energy levels induced by the radiation from the ionizing star and by the (warmer than currently) Cosmic Microwave Background can produce noticeable differences in the population distribution, as compared with previous computations for contemporary H + regions, most of whi… Show more
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