The Resonant Excitation of Transverse Oscillations in Coronal Loops

Details The Resonant Excitation of Transverse Oscillations in Coronal Loops The Resonant Excitation of Transverse Oscillations in Coronal Loops

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003astl...29..486u&link_type=abstract

Astronomy Letters, vol. 29, p. 486-493 (2003)

Astronomy and Astrophysics

Astronomy

8

Scientific paper

We suggest a way of self-consistently solving the problem of the excitation and rapid damping of coronal loop oscillations observed from the TRACE (Transition Region and Coronal Explorer) satellite. Oscillations are excited on the dispersion branch of fast magnetoacoustic waves, which propagate mainly across the magnetic field. The rapid damping of the observed oscillations is governed by the dispersion spreading of the pulse of these waves that was produced, for example, by a solar flare. The fundamental oscillation period is close to the period of the fundamental mode. Dissipative processes attributable to the nonideality of the plasma and the coronal-loop footpoints play no fundamental role.

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