Generation of gravitational radiation in dusty plasmas and supernovae |
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| Authors: | G Brodin M Marklund P K Shukla |
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| Institution: | 1.Department of Physics,Ume? University,Ume?,Sweden;2.Centre for Fundamental Physics,Rutherford Appleton Laboratory,Chilton Didcot, Oxfordshire,UK;3.Institut für Theoretische Physik IV, Fakult?t für Physik und Astronomie,Ruhr-Universit?t Bochum,Bochum,Germany |
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| Abstract: | 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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