Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2006-06-16
Phys.Rev.D74:064014,2006
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
A few typos corrected. Published in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.74.064014
We present an investigation of nonlinear interactions between Gravitational Radiation and modified Alfv\'{e}n modes in astrophysical dusty plasmas. Assuming that stationary charged dust grains form neutralizing background in an electron-ion-dust plasma, we obtain the three wave coupling coefficients, and calculate the growth rates for parametrically coupled gravitational radiation and modified Alfv\'{e}n-Rao modes. The threshold value of the gravitational wave amplitude associated with convective stabilization is particularly small if the gravitational frequency is close to twice the modified Alfv\'en wave-frequency. The implication of our results to astrophysical dusty plasmas is discussed.
Brodin Gert
Forsberg Mats
Kant Shukla Padma
Marklund Mattias
Moortgat Joachim
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