Abstract
We analyze the pattern of behavior of p-mode wave packets with solar cycle using TON one-day helioseismic data with a high spatial resolution. The time—distance method is used to perform this task. We make an attempt to determine the variations in the travel time of acoustic waves at maximum and minimum solar activity; at maximum activity, this time decreases by 2 s compared to that at minimum activity to a depth of 0.8R ⊙. In addition, the correlation amplitudes of acoustic wave packets from minimum to maximum solar activity were found to decrease by 10–20% for all angular distances.
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Translated from Pis’ma v Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 30, No. 8, 2004, pp. 635–640.
Original Russian Text Copyright © 2004 by Kholikov, Burtseva, Serebryanskiy, Ehgamberdiev.
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Kholikov, S.S., Burtseva, O.S., Serebryanskiy, A.V. et al. On the variations in the parameters of high-degree acoustic modes with solar cycle. Astron. Lett. 30, 577–581 (2004). https://doi.org/10.1134/1.1784499
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DOI: https://doi.org/10.1134/1.1784499