Numerical simulations of impulsively excited fast magnetosonic waves in two parallel slabs

• Autorzy: Ogrodowczyk R. , Murawski K.
• Języki publikacji: EN

Abstrakty

EN

We present numerical results of a temporal evolution of impulsively excited magnetosonic waves in a solar coronal loop that is approximated by a set of two straight plasma slabs of mass density enhancement. Numerical simulations reveal that shapes of wavelet spectra of time signatures of these waves depend on a distance between the strands and on a position of the initial pulse. We find that with a distance growing between these strands short period waves contribute more while long period waves contribute less to the wavelet spectra. We demonstrate that a presence of the second parallel strand affects considerably wave propagation in comparison to one strand alone. We find out that the initial pulse triggers a packet of propagating waves among witch sausage and kink modes are present simultaneously.

Słowa kluczowe

EN

Sun: MHD; Sun: corona; Sun: oscillation

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2006
• Tom: Vol. 10, No 3
• Strony: 227--238
• Opis fizyczny: Bibliogr. 27, rys., tab.

Twórcy

autor

Ogrodowczyk R.

autor

Murawski K.

• Institute of Mathematics and Computer Sciences, The State University in Chełm, Pocztowa 54, 22-100 Chełm, Poland,

Bibliografia

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