arXiv Open Access 2023

Ion Reflection by a Rippled Perpendicular Shock

Yuri V. Khotyaintsev Daniel B. Graham Andreas Johlander

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Abstrak

We use multi-spacecraft Magnetospheric Multiscale (MMS) observations to investigate electric fields and ion reflection at a non-stationary collisionless perpendicular plasma shock. We identify sub-proton scale (5-10 electron inertial lengths) large-amplitude normal electric fields, balanced by the Hall term ($\mathbf{J} \times \mathbf{B}/ne$), as a transient feature of the shock ramp related to non-stationarity (rippling). The associated electrostatic potential, comparable to the energy of the incident solar wind protons, decelerates incident ions and reflects a significant fraction of protons, resulting in more efficient shock-drift acceleration than a stationary planar shock.

Topik & Kata Kunci

physics.space-ph physics.plasm-ph

Penulis (3)

Yuri V. Khotyaintsev

Daniel B. Graham

Andreas Johlander

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APA MLA BibTeX

Khotyaintsev, Y.V., Graham, D.B., Johlander, A. (2023). Ion Reflection by a Rippled Perpendicular Shock. https://arxiv.org/abs/2312.14736

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Informasi Jurnal

Tahun Terbit: 2023
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓