Astrophysics and Space Science

, 363:257 | Cite as

Global long-term oscillations of the Sun observed by SORCE, SOHO and SDO

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


The global long term periodic oscillations of the Sun are investigated on the base of three independent sets of data:
  1. 1.

    Records of Total Solar Irradiance (TSI).

  2. 2.

    The average brightness of the solar photosphere in MDI (SOHO) and HMI (SDO) images.

  3. 3.

    Records of the time variations of sunlight reflected from the planets during their passage in the field of view of the LASCO C3 coronagraph.

It is found that in the low-frequency spectrum of global solar oscillations, there are modes with periods of 8–10, 36–38 hours and the main stable prominent mode with a period of ∼9-days.


The Sun Global oscillations g-Modes Time series 



This work utilizes data from SORCE/TIM, SOHO/MDI, SOHO/VIRGO and SDO/HMI. SOHO is a mission of international cooperation between ESA and NASA. SDO data courtesy of SDO (NASA) and the HMI and AIA consortium. The unpublished solar irradiance data set was obtained from VIRGO Team through PMOD/WRC, Davos, Switzerland.

The work is supported by the Program No. 28 of the Presidium of Russian Academy of Science and the Russian Foundation of Basic Research, grant 18-02-00168.

A.A. Solov’ev thanks Russian Scientific Foundation for the support (project 15-12-20001).


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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  • V. I. Efremov
    • 1
  • L. D. Parfinenko
    • 1
  • A. A. Solov’ev
    • 1
    • 2
    Email author
  1. 1.Central (Pulkovo) Astronomical Observatory of the Russian Academy of SciencesSt. PetersburgRussia
  2. 2.Kalmyk State UniversityElistaRussia

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