caa a22 4500 445346248 CHVBK 20180317142829.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s11207-011-9775-9 doi (NATIONALLICENCE)springer-10.1007/s11207-011-9775-9 Cavitation by Nonlinear Interaction Between Inertial Alfvén Waves and Magnetosonic Waves in Low Beta Plasmas [Elektronische Daten] [Sanjay Kumar, R. Sharma, H. Singh] This paper presents the model equations governing the nonlinear interaction between dispersive Alfvén wave (DAW) and magnetosonic wave in the low-β plasmas (β≪m e/m i; known as inertial Alfvén waves (IAWs); here $\upbeta = 8\pi n_{0}T /B_{0}^{2}$ is thermal to magnetic pressure, n 0 is unperturbed plasma number density, T(=T e≈T i) represents the plasma temperature, and m e(m i) is the mass of electron (ion)). This nonlinear dynamical system may be considered as the modified Zakharov system of equations (MZSE). These model equations are solved numerically by using a pseudo-spectral method to study the nonlinear evolution of density cavities driven by IAW. We observed the nonlinear evolution of IAW magnetic field structures having chaotic behavior accompanied by density cavities associated with the magnetosonic wave. The relevance of these investigations to low-β plasmas in solar corona and auroral ionospheric plasmas has been pointed out. For the auroral ionosphere, we observed the density fluctuations of ∼ 0.07n 0, consistent with the FAST observation reported by Chaston et al. (Phys. Scr. T84, 64, 2000). The heating of the solar corona observed by Yohkoh and SOHO may be produced by the coupling of IAW and magnetosonic wave via filamentation process as discussed here. Springer Science+Business Media B.V., 2011 Kinetic Alfvén wave nationallicence Magnetosonic wave nationallicence Solar wind nationallicence Kumar Sanjay Centre for Energy Studies, Vth Block, Indian Institute of Technology Delhi, Hauz Khas, 110016, New Delhi, India aut Sharma R. Centre for Energy Studies, Vth Block, Indian Institute of Technology Delhi, Hauz Khas, 110016, New Delhi, India aut Singh H. Centre for Energy Studies, Vth Block, Indian Institute of Technology Delhi, Hauz Khas, 110016, New Delhi, India aut Solar Physics Springer Netherlands 270/2(2011-06-01), 523-535 0038-0938 270:2<523 2011 270 11207 https://doi.org/10.1007/s11207-011-9775-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11207-011-9775-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kumar Sanjay Centre for Energy Studies, Vth Block, Indian Institute of Technology Delhi, Hauz Khas, 110016, New Delhi, India aut NATIONALLICENCE 700 1- Sharma R. Centre for Energy Studies, Vth Block, Indian Institute of Technology Delhi, Hauz Khas, 110016, New Delhi, India aut NATIONALLICENCE 700 1- Singh H. Centre for Energy Studies, Vth Block, Indian Institute of Technology Delhi, Hauz Khas, 110016, New Delhi, India aut NATIONALLICENCE 773 0- Solar Physics Springer Netherlands 270/2(2011-06-01), 523-535 0038-0938 270:2<523 2011 270 11207 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer