PLANETARY EMBRYO BOW SHOCKS AS A MECHANISM FOR CHONDRULE FORMATION [PDF]
The Astrophysical Journal, 2016 ABSTRACT We use radiation hydrodynamics with direct particle integration to explore the feasibility of chondrule formation in planetary embryo bow shocks. The calculations presented here are used to explore the consequences of a Mars-size planetary embryo traveling on a moderately excited orbit through the dusty, early environment of the
Christopher R. Mann +2 more
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Relating the Solar Wind Turbulence Spectral Break at the Dissipation Range with an Upstream Spectral Bump at Planetary Bow Shocks [PDF]
The Astrophysical Journal, 2022 Abstract At scales much larger than the ion inertial scale and the gyroradius of thermal protons, the magnetohydrodynamic (MHD) theory is well equipped to describe the nature of solar wind turbulence. The turbulent spectrum itself is defined by a power law manifesting the energy cascading process.
M. Terres, Gang Li
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High-Temperature Processing of Solids Through Solar Nebular Bow Shocks: 3D Radiation Hydrodynamics Simulations with Particles [PDF]
Astrophysical Journal, 2013 A fundamental, unsolved problem in Solar System formation is explaining the melting and crystallization of chondrules found in chondritic meteorites.
Boley, A. C. +2 more
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Subcritcal dispersive shock waves upstream of planetary bow shocks and at comet Giacobini‐Zinner
Geophysical Research Letters, 1988 Electromagnetic simulations are used to investigate the nonlinear evolution of ULF (magnetosonic) waves. These waves have been observed upstream of planetary bow shocks and at Comet Giacobini‐Zinner. The simulations show that these waves steepen to form subcritical dispersive shock waves.
N. Omidi, D. Winske
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The location of planetary bow shocks: A critical overview of theory and observations
Advances in Space Research, 1995 A bow shock (BS has been observed in the collisionless solar wind upstream of every planet except Pluto, which has yet to be visited by a spacecraft. They are all of similar character, but their size relative to the planet varies widely, e.g., the planeto-centric distance to the BS nose ranges from about 1.4 R(sub V) for Venus to 88 R(sub J) or more ...
J.R Spreiter, S.S Stahara
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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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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
doaj +1 more source
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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