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VOLUME 81 | ISSUE 4 | PAGE 169
Generation of gravitational radiation in dusty plasmas and supernovae
G. Brodin*, M. Marklund1) *, P. K. Shukla1) *+
*Department of Physics, Umeå University, SE-901 87 Umeå, Sweden
+Institut für Theoretische Physik IV, Fakultät für Physik und Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany

PACS: 04.30.Db, 97.60.Bw, 98.62.En
We present a novel nonlinear mechanism for exciting a gravitational radiation pulse (or a gravitational wave) by dust magnetohydrodynamic (DMHD) waves in dusty astrophysical plasmas. We derive the relevant equations governing the dynamics of nonlinearly coupled DMHD waves and a gravitational wave (GW). The system of equations is used to investigate the generation of a GW by compressional Alfvén waves in a type II supernova. The growth rate of our nonlinear process is estimated, and the results are discussed in the context of the gravitational radiation accompanying supernova explosions.

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