Reflectionless propagation of acoustic waves in the solar atmosphere |
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Authors: | N S Petrukhin E N Pelinovsky E K Batsyna |
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Institution: | 1. Higher School of Economics, National Research University, ul. Bol??shaya Pecherskaya 25/14, Nizhni Novgorod, 603155, Russia 2. Institute of Applied Physics, Russian Academy of Sciences, ul. Ul??yanova 46, Nizhni Novgorod, 603950, Russia
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Abstract: | The possibility that vertical acoustic waves with frequencies lower than the cutoff frequency corresponding to the temperature minimum pass this minimum is investigated. It is shown that the averaged temperature profile in the solar atmosphere can be approximated by several so-called reflectionless profiles on which the acoustic waves propagate without internal reflection. The possibility of the penetration of vertical acoustic waves, including low-frequency ones, into the solar corona is explained in this way. |
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