6 papers
Reformation of Supercritical Perpendicular Shock
Yuri V. Khotyaintsev, Domenico Trotta, Daniel B. Graham
Super-critical collisionless shocks are not static structures but evolve continuously as they reflect incoming ions back upstream. The physical process responsible for this non-sta…
Occurrence of Non-Stationarity at Earth's Quasi-Perpendicular Bow Shock
Ajay Lotekar, Yuri V. Khotyaintsev, Daniel B. Graham +3
Collisionless shocks can exhibit non-stationary behavior even under steady upstream conditions, forming a complex transition region. Ion phase-space holes, linked to shock self-ref…
Electron-scale energy transfer due to lower hybrid waves during asymmetric reconnection
Sabrina F. Tigik, Daniel B. Graham, Yuri V. Khotyaintsev
We use Magnetospheric Multiscale (MMS) mission data to investigate electron-scale energy transfer due to lower hybrid drift waves during magnetopause reconnection. We analyze waves…
Electron Heating by Parallel Electric Fields in Magnetotail Reconnection
Louis Richard, Yuri V. Khotyaintsev, Cecilia Norgren +5
We investigate electron heating by magnetic-field-aligned electric fields () during anti-parallel magnetic reconnection in the Earth's magnetotail. Using a statistical…
Debye-scale electrostatic waves across quasi-perpendicular shocks
Ahmad Lalti, Yuri V. Khotyaintsev, Daniel B. Graham +1
The evolution of the properties of short-scale electrostatic waves across collisionless shocks remains an open question. We use a method based on the interferometry of the electric…
Ion-Acoustic Waves and the Proton-Alpha Streaming Instability at Collisionless Shocks
Daniel B. Graham, Yuri V. Khotyaintsev, Ahmad Lalti
Ion-acoustic waves are routinely observed at collisionless shocks and could be an important source of resistivity. The source of instability and the effects of the waves are not fu…