Physics
Scientist
Glavnaia Astronomicheskaia Observatoriia, Pulkovo, USSR
Pulkovo Observatory, Russian Academy of Sciences
A connection of the number of dark points observed on the solar disk in the He I 10830 Å line and the number of light knots in the K Ca II line with the solar cycle.
HeI dark points and 11-year solar cycle
Investigation of Long-Period Oscillations of Sunspots with Ground-Based (Pulkovo) and SOHO/MDI Data
Long-Period Oscillations OF Sunspots Detected by Doppler Shifts on Digital Spectroheliograms
Long-period oscillations of the line-of-sight velocities in and near sunspots at various levels in the photosphere
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