Geomagnetism and Aeronomy

, Volume 58, Issue 7, pp 982–988 | Cite as

Global Oscillations of the Sun according to SOHO/LASCO C3 Coronagraph Data

  • L. D. Parfinenko
  • V. I. Efremov
  • A. A. Solov’evEmail author


Long-period oscillations in the brightness of the Sun as a star have been analyzed on the basis of measurements of the solar light reflected by planets when they come into the field of view of the Large Angle and Spectrometric Coronagraph (LASCO C3) onboard the Solar and Heliospheric Observatory (SOHO). We took sequences of FITS intensitygrams from the archive of the SOHO/LASCO C3 space observatory for the observational data; they were 1024 × 1024 pixels in size, and they were acquired with the 12-min interval. In 5-day continuous time series of the brightness of Mars and Jupiter, coinciding modes of 8–10 and 36–38 h were found. This coincidence apparently indicates their solar origin. In addition, for Mars, we obtained 25-day series of time variations of the reflected solar radiation, in which a mode with even a lower frequency of 8–10 days was detected.



This work was supported by the Presidium of the Russian Academy of Sciences (project no. 28) and the Russian Foundation for Basic Research (project no. 18-02-00168) and Russian Science Foundation (project no. 15-12-20001).


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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • L. D. Parfinenko
    • 1
  • V. I. Efremov
    • 1
  • A. A. Solov’ev
    • 1
    Email author
  1. 1.Pulkovo Astronomical Observatory, Russian Academy of SciencesSt. PetersburgRussia

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