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Статья

Reflectionless Propagation of Acoustic Waves in the Solar Atmosphere

Astronomy Letters. 2012. Vol. 38. No. 6. P. 388-393.

The possibility that vertical acoustic waves with frequencies lower than the cutofffrequency 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 onwhich the acousticwaves propagate without internal reflection. The possibility of the penetration of vertical acoustic waves, including low-frequencyones, into the solar corona is explained in this way.