Abstract
A quasi-periodic component was found at the maximum of the X-ray light curve for the June 10, 1990 solar flare detected by the Granat observatory. The pulsation period was 143.2±0.8 s. The intensity of the pulsing component is not constant; the maximum amplitude of the pulsations is ∼5% of the total flare intensity. An analysis of the data showed the characteristic size of the magnetic loop responsible for these pulsations to be ∼(1–3)×1010 cm.
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Translated from Pis’ma v Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Zhurnal, Vol. 28, No. 6, 2002, pp. 452–456.
Original Russian Text Copyright © 2002 by Terekhov, Shevchenko, Kuz’min, Sazonov, Sunyaev, Lund.
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Terekhov, O.V., Shevchenko, A.V., Kuz’min, A.G. et al. Observation of quasi-periodic pulsations in the solar flare SF 900610. Astron. Lett. 28, 397–400 (2002). https://doi.org/10.1134/1.1484140
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DOI: https://doi.org/10.1134/1.1484140