Possibility of Excitation of Low-ℓ P-Modes by Energetic Solar Transients |
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| Authors: | Ashok Ambastha H. M. Antia |
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| Affiliation: | (1) Udaipur Solar Observatory, Physical Research Laboratory, P.O. Box 198, Udaipur, 313001, India;(2) Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, 400005, India |
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| Abstract: | We examine the temporal variation of power in low-ℓ modes using GONG data for the period of May 1995–October 2005 and compare this with disk-integrated flare and CME indices. A poor correlation between the running means of Flare Index and mode power is found. A similar result is found for CME Index also. Variations in the running mean mode power corresponding to ℓ = 0 modes with different radial orders are generally stochastic in nature. This behaviour is also reflected in the distribution of mode power. |
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