Spatial Damping of Linear Compressional Magnetoacoustic Waves in Quiescent Prominences

Details Spatial Damping of Linear Compressional Magnetoacoustic Waves in Quiescent Prominences Spatial Damping of Linear Compressional Magnetoacoustic Waves in Quiescent Prominences

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006japa...27..321s&link_type=abstract

Journal of Astrophysics and Astronomy, vol. 27, no.2 & 3 P.321-326

Astronomy and Astrophysics

Astrophysics

2

Sun: Prominences, Oscillations, Magnetohydrodynamicsradiation: Thermal

Scientific paper

We study the spatial damping of magnetoacoustic waves in an unbounded quiescent prominence invoking the technique of MHD seismology. We consider Newtonian radiation in the energy equation and derive a fourth order general dispersion relation in terms of wavenumber k. Numerical solution of dispersion relation suggests that slow mode is more affected by radiation. The high frequency waves have been found to be highly damped. The uncertainty in the radiative relaxation time, however, does not allow us to conclude if the radiation is a dominant damping mechanism in quiescent prominence.

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