Parametric interaction of coronal loops with p modes

Details Parametric interaction of coronal loops with p modes Parametric interaction of coronal loops with p modes

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009coast.159...30s&link_type=abstract

"Communications in Asteroseismology, Vol. 159, p. 30-32. Proceedings of "JENAM 2008 Symposium No 4: Asteroseismology and Stellar

Physics

Scientific paper

Parametric resonance between p modes and eigenoscillations of coronal loops is studied. Observations of solar radio bursts revealed this effect in simultaneous excitation of loop oscillations with periods corresponding to the pumping-up frequency (5 min), subharmonic (10 min), and to the first upper frequency of parametric resonance (3.3 min). An interpretation in terms of a coronal magnetic loop as an equivalent electric circuit is given. Parametric resonance can work as a channel for transfer of energy from photospheric motions to stellar coronae.

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