Results 1 to 10 of about 288 (182)
Planetary bow shocks: Gasdynamic analytic approach [PDF]
Journal of Geophysical Research, 2003 A new analytical model of the bow shock surface is suggested for reasonably accurate and fast prediction of this boundary's position near obstacles of different shape. For axially symmetric obstacles the model was verified by comparison with experiments and results of gasdynamic code application for a wide range of upstream polytropic indexes, 1.15 <
Tamás Gombosi +2 more
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PLANETARY EMBRYO BOW SHOCKS AS A MECHANISM FOR CHONDRULE FORMATION [PDF]
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 Mann
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CHONDRULE FORMATION IN BOW SHOCKS AROUND ECCENTRIC PLANETARY EMBRYOS [PDF]
Astrophysical Journal, 2012 Accepted for publication in The Astrophysical ...
Morris, Melissa A. +3 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]
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.
Gang Li, Michael Terres
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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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Structure of a Quasi-parallel Shock Front
The Astrophysical Journal, 2023 The aim of this study is to compare observations of the magnetic field structure of observed quasi-parallel collisionless shock fronts with the results obtained analytically.
Michael A. Balikhin +4 more
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The Astrophysical Journal, 2023 Shock waves are sites of intense plasma heating and charged particle acceleration. In collisionless solar wind plasmas, such acceleration is attributed to shock drift or Fermi acceleration but also to wave–particle resonant interactions.
Xiaofei Shi +4 more
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The Astrophysical Journal, 2023 Thermalization and heating of plasma flows at shocks result in unstable charged-particle distributions that generate a wide range of electromagnetic waves. These waves, in turn, can further accelerate and scatter energetic particles. Thus, the properties
Xiaofei Shi +5 more
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Scattering of Superthermal Ions at Shocks: Dependence on Energy
The Astrophysical Journal, 2023 Diffusive shock acceleration requires the production of backstreaming superthermal ions (injection) as a first step. Such ions can be generated in the process of scattering of ions in the superthermal tail off the shock front. Knowledge of the scattering
Michael Gedalin +3 more
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