Numerical Simulations of Slow Standing Waves in a Curved Solar Coronal Loop

Details Numerical Simulations of Slow Standing Waves in a Curved Solar Coronal Loop Numerical Simulations of Slow Standing Waves in a Curved Solar Coronal Loop

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apj...668l..83s&link_type=abstract

The Astrophysical Journal, Volume 668, Issue 1, pp. L83-L86.

Astronomy and Astrophysics

Astronomy

20

Sun: Corona, Sun: Oscillations

Scientific paper

We consider slow standing waves that are impulsively excited in a curved solar coronal loop. The numerical model we implement includes the effect of nonlinearity in the frame of two-dimensional ideal magnetohydrodynamics. We discuss the role of curved magnetic field lines and of the slow and fast pulses overlapping at one of the loop's footpoints in the excitation and attenuation of slow standing waves. We find that slow waves can be excited faster in curved loops than in slabs due to the combined effect of the pulse inside and outside the loop.

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