Langmuir wave-packet generation from an electron beam propagating in the inhomogeneous solar wind

Details Langmuir wave-packet generation from an electron beam propagating in the inhomogeneous solar wind Langmuir wave-packet generation from an electron beam propagating in the inhomogeneous solar wind

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1216..296z&link_type=abstract

TWELFTH INTERNATIONAL SOLAR WIND CONFERENCE. AIP Conference Proceedings, Volume 1216, pp. 296-299 (2010).

Astronomy and Astrophysics

Astronomy

Solar Wind, Electron Beam Effects, Spacecraft, Radio Sources (Astronomical), Particle Emission, Solar Wind, Electron And Positron Beams, Spacecraft/Atmosphere Interactions, Radio, Microwave

Scientific paper

Recent in-situ observations by the TDS instrument equipping the STEREO spacecraft revealed that large amplitude spatially localized Langmuir waves are frequent in the solar wind, and correlated with the presence of suprathermal electron beams during type III events or close to the electron foreshock. We briefly present the new theoretical model used to perform the study of these localized electrostatic waves, and show first results of simulations of the destabilization of Langmuir waves by a beam propagating in the inhomogeneous solar wind. The main results are that the destabilized waves are mainly focalized near the minima of the density profiles, and that the nonlinear interaction of the waves with the resonant particles enhances this focalization compared to a situation in which the only propagation effects are taken into account.

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