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Ion-cyclotron waves at the Earth ‘s Magnetopause – CLUSTER Observations

Ion-cyclotron waves at the Earth ‘s Magnetopause – CLUSTER Observations. E.V. Panov. Acknowledgements:

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Ion-cyclotron waves at the Earth ‘s Magnetopause – CLUSTER Observations

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  1. Ion-cyclotron waves at the Earth‘s Magnetopause – CLUSTER Observations E.V. Panov Acknowledgements: I.I. Alekseev, J. Büchner,I. Dandouras,K.-H. Fornaçon,M. Fränz,K.-H. Glaβmeier, Yu. Khotyaintsev, A. Korth,V.L. Krasovsky, H. Rème,S. P. Savin, V.A. Sergeev, A. Vaivads and the instrument teams From: MPS, Lindau, Germany, IRW, Uppsala, Sweeden, IKI, Moscow, Russia, IGEP, Braunschweig, Germany, CESR, Toulouse, France etc.

  2. Thin and Thick Magnetopause Crossings on 30 March, 2002 50 km 500 km 2000 km

  3. Thin Magnetopause Structure 30 March 2002, 13:11:40 - 13:11:55 MP normal frame: N M L BL, [nT] BM, [nT] BN, [nT] BT, [nT] J, [nA] EN,[mV/m] N, [cc-3] Length, [km]

  4. Magnetopause thickness wave type: LHD waves ?

  5. Thick Magnetopause Structure 30 March 2002, 13:27:30 - 13:30:00 termal anisotropy

  6. Source of Thermal Anisotropy Langmuir waves are excited by the new coming protons whose charge is not compensated yet

  7. Thermal Anisotropy Produced Ion-Cyclotron Waves N M L

  8. Wave Length Calculation λ~500km propagated antiparallel to B (in accordance with anisotropy IC waves theory)

  9. IC Waves – More Probable! wave type: lower hybrid waves ion-cyclotron waves

  10. Drift and Anisotropy Wave Properties kdrift - compressional N M kanisotropic- transverse grad(n) L grad(B)

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