Quasiperiodic hard X-ray pulsations in solar flares

Details Quasiperiodic hard X-ray pulsations in solar flares Quasiperiodic hard X-ray pulsations in solar flares

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pazh....9..307b&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 9, May 1983, p. 307-311) Soviet Astronomy Letters (ISSN 0360-0327), vol. 9, May-June 19

Astronomy and Astrophysics

Astronomy

2

Solar Flares, Solar X-Rays, Field Strength, Fourier Analysis, Plasma Density, Power Spectra, Solar Magnetic Field, Solar Oscillations

Scientific paper

The results of a search for periodic solar-flare hard-X-ray fluctuations at energies near 100 keV and periods from about 3l msec to tens of seconds are reported. Fourier analysis with 0.25-sec resolution is performed on impulsive bursts lasting up to 1 min and having complex temporal structure observed by Prognoz 7 or Venera 12, 13, or 14. The results are presented in a table and graphs and discussed in relation to theoretical models. Quasiperiodic oscillations with 1-2-sec periods are found in several cases.

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