TY - JOUR
T1 - Parametric instabilities in a two ion species plasma as a driver of super Alfvénic waves
AU - Matsukiyo, S.
N1 - Publisher Copyright:
© 2020 Institute of Physics Publishing. All rights reserved.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/9/30
Y1 - 2020/9/30
N2 - Linear dispersion relation of parametric instabilities of a left hand circularly polarized wave in a three species plasma consisting electrons, protons, and α particles is derived and the obtained dispersion relation is numerically solved. It is shown that the so-called super Alfvénic waves, which are thought to play important roles in preferential acceleration of heavy ions, can get excited through a parametric decay instability when the parent wave is on the proton cyclotron branch and the plasma beta is sufficiently low. A variety of other parametric instabilities are also generated.
AB - Linear dispersion relation of parametric instabilities of a left hand circularly polarized wave in a three species plasma consisting electrons, protons, and α particles is derived and the obtained dispersion relation is numerically solved. It is shown that the so-called super Alfvénic waves, which are thought to play important roles in preferential acceleration of heavy ions, can get excited through a parametric decay instability when the parent wave is on the proton cyclotron branch and the plasma beta is sufficiently low. A variety of other parametric instabilities are also generated.
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U2 - 10.1088/1742-6596/1620/1/012013
DO - 10.1088/1742-6596/1620/1/012013
M3 - Conference article
AN - SCOPUS:85093360867
VL - 1620
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012013
T2 - 19th Annual International Astrophysics Conference, AIAC 2020
Y2 - 9 March 2020 through 13 March 2020
ER -