caa a22 4500 469077166 CHVBK 20180323132938.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1007/BF02507836 doi (NATIONALLICENCE)springer-10.1007/BF02507836 Nonlinear oblique propagation of magnetohydrodynamic waves in the solar wind [Elektronische Daten] [F. Malara, J. Elaoufir] Summary: Oblique propagating magnetohydrodynamic waves with various wave forms and amplitudes are observed both at the Earth's foreshock and at comets. The possibility of interpreting some observational results in terms of nonlinear evolution of one- and two-dimensional hydromagnetic waves is investigated. For this purpose both analytical and numerical techniques are employed. It is found that an initial monochromatic wave changes its polarization giving origin to magnetosonic shocks and rotational discontinuities; the time evolution of density-magnetic-field correlation is studied, as a function of the plasma parameters and of the propagation angle. In the two-dimensional case both a transverse instability and a self-focusing effect may take place. Moreover, a two-dimensional magnetosonic solution is found, in which the density fluctuations are driven by the total pressure fluctuation as in a one-dimensional simple wave. These theoretical predictions compare well with the features observed in the solar-wind waves. Società Italiana di Fisica, 1992 Solar wind plasma nationallicence Shock waves nationallicence Nonlinear waves and nonlinear wave propagation (including parametric effects, mode coupling, ponderomotive effects, etc.) nationallicence Malara F. Dipartimento di Fisica, Università della Calabria, Italia aut Elaoufir J. Départment de Recherche Spatiale, Observatoire de Paris-Meudon, France aut Il Nuovo Cimento C Kluwer Academic Publishers 15/5(1992-09-01), 631-644 0390-5551 15:5<631 1992 15 11543 https://doi.org/10.1007/BF02507836 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02507836 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Malara F. Dipartimento di Fisica, Università della Calabria, Italia aut NATIONALLICENCE 700 1- Elaoufir J. Départment de Recherche Spatiale, Observatoire de Paris-Meudon, France aut NATIONALLICENCE 773 0- Il Nuovo Cimento C Kluwer Academic Publishers 15/5(1992-09-01), 631-644 0390-5551 15:5<631 1992 15 11543 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer