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ANGEO | Articles | Volume 37, issue 5
Ann. Geophys., 37, 835–842, 2019
https://doi.org/10.5194/angeo-37-835-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Ann. Geophys., 37, 835–842, 2019
https://doi.org/10.5194/angeo-37-835-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

ANGEO Communicates 20 Sep 2019

ANGEO Communicates | 20 Sep 2019

Multi-channel coupling of decay instability in three-dimensional low-beta plasma

Horia Comişel et al.
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Akimoto, K., Winske, D., Gary, S. P., and Thomsen, M. F.: Nonlinear evolution of electromagnetic ion beam instabilities, J. Geophys. Res., 98, 1419–1433, https://doi.org/10.1029/92JA02345, 1993. a
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Bekhor, S. H. and Drake, R. P.: Plasma heating via parametric beating of Alfvén waves, with heliospheric applications, Phys. Plasmas, 10, 4800, https://doi.org/10.1063/1.1619975, 2003. a
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Short summary
Here we present a scenario that the decay of a field-aligned Alfvén wave can occur simultaneously at various angles to the mean magnetic field, generating a number of second-order fluctuations or waves (after the pump wave as the first-order fluctuation). We refer to the simultaneous decay as multi-channel couplings following the notion in scattering theory. Our goal is to study the hypothesis of the multi-channel coupling by running a three-dimensional hybrid plasma simulation.
Here we present a scenario that the decay of a field-aligned Alfvén wave can occur...
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