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The qualitative interpretation is given to the observed temporal anomalies in the emission spectrum of the Sun. The hypothesis of population inversion existence is verified using modeling of processes in Solar photosphere. The quasi resonant charge exchange of doubly ionized Helium on Hydrogen atoms is considered for the most probable mechanism to form the population inversion. A set of HeII lines is given together with corresponding relative amplification coefficients that can explain the results of observations.
Yurii A. Piotrovsky andYurii A. Tolmachev
"Possibility of superluminescence effect in the atmosphere of the sun", Proc. SPIE 4071, International Conference on Atomic and Molecular Pulsed Lasers III, (24 April 2000); https://doi.org/10.1117/12.383455
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Yurii A. Piotrovsky, Yurii A. Tolmachev, "Possibility of superluminescence effect in the atmosphere of the sun," Proc. SPIE 4071, International Conference on Atomic and Molecular Pulsed Lasers III, (24 April 2000); https://doi.org/10.1117/12.383455