Results 11 to 20 of about 288 (182)
Shock Heating of Incident Thermal and Superthermal Populations of Different Ion Species
The Astrophysical Journal, 2023 Using ion tracing in a model shock front we study heating of thermal (Maxwellian) and superthermal (Vasyliunas–Siscoe) populations of protons, singly charged helium, and alpha particles. It is found that heating of thermal and superthermal populations is
Michael Gedalin +2 more
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Energy Repartition and Entropy Generation across the Earth’s Bow Shock: MMS Observations
The Astrophysical Journal, 2023 The evolution of plasma entropy and the process of plasma energy redistribution at the collisionless plasma shock front are evaluated based on the high temporal resolution data from the four Magnetospheric Multiscale spacecraft during the crossing of the
O. V. Agapitov +5 more
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Particle Energization at a High Mach Number Perpendicular Shock: 1D Particle-in-cell Simulations
The Astrophysical Journal, 2023 In this paper, we use a 1D particle-in-cell simulation code to study particle preaccelerations at a high Mach number perpendicular shock. Our simulation results show that almost all of the injected particles can be reflected at the shock front, and then ...
Yufei Hao +6 more
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In Situ Observation of Electron Acceleration by a Double Layer in the Bow Shock
The Astrophysical Journal, 2023 The importance of the electric potential along the field direction in the acceleration of electrons in the quasi-perpendicular bow shock has been proposed.
C. M. Wang +6 more
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Planetary bow shocks: Asymptotic MHD Mach cones [PDF]
Earth, Planets and Space, 2014 A direct approach for determining the asymptotic MHD Mach cone is formulated and solved. An implicit analytical solution enables the calculation of the asymptotic downstream slope of MHD Mach cones at any clock angle for arbitrary Ms, Ma, and ϑbv. The solution obtained includes all previously known symmetric cases.
Verigin, M. +4 more
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Frontiers in Physics, 2022 The Mach number is one of the key parameters of collisionless shocks. Understanding shock physics requires knowledge of the spatial scales in the shock transition layer.
Michael Gedalin +3 more
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The Astrophysical Journal, 2023 The interaction between the solar wind and Venus creates an induced magnetosphere. The regions of the induced magnetosphere are separated by plasma boundaries, where their shapes and sizes are influenced by variations in the surrounding environment ...
C. Signoles +12 more
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Rankine–Hugoniot Relations and Magnetic Field Enhancement in Turbulent Shocks
The Astrophysical Journal, 2023 In fast collisionless shocks, the density and magnetic field increase and the plasma is heated. The compression and heating are ultimately determined by the Rankine–Hugoniot relations connecting the upstream and downstream parameters.
Michael Gedalin
doaj +1 more source
Unusual Martian Foreshock Waves Triggered by a Solar Wind Stream Interaction Region
The Astrophysical Journal Letters, 2023 Planetary bow shocks noncollisionally dissipate the incident bulk flow energy of solar wind into some other forms. To what extent and how solar wind disturbances affect the energy dissipation processes at the bow shocks on different planets remain ...
Zhenpeng Su +16 more
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Planetary Evaporation and the Dynamics of Planet Wind/Stellar Wind Bow Shocks [PDF]
Proceedings of the International Astronomical Union, 2015 AbstractWe present initial results of a new campaign of simulations focusing on the interaction of planetary winds with stellar environments using Adaptive Mesh Refinement methods. We have confirmed the results of Stone & Proga (2009) that an azimuthal flow structure is created in the planetary wind due to day/night temperatures differences.
Frank, A. +6 more
openaire +2 more sources