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Rankine-Hugoniot relations in turbulent shocks
Frontiers in Physics, 2023 A collisionless shock is often regarded as a discontinuity with a plasma flow across it. Plasma parameters before the shock (upstream) and behind the shock (downstream) are related by the Rankine-Hugoniot relations (RH) which essentially are the mass ...
Michael Gedalin
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Magnetohydrodynamic Shocks Revisited: Magnetically Constraining the Upstream Solar Wind Condition
The Astrophysical Journal, 2023 Magnetohydrodynamic (MHD) shocks are commonly found in various space and astrophysical systems. One often encounters the problem that only the magnetic field data are available when studying interplanetary shocks and planetary bow shocks in the solar ...
Daniel Schmid, Yasuhito Narita
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Mass-loading and parallel magnetized shocks [PDF]
, 1991 Recent observations at comets Giacobini-Zinner and Halley suggest that simple non-reacting gas dynamics or MHD is an inappropriate description for the bow shock. The thickness of the observed (sub)shock implies that mass-loading is an important dynamical
Neubauer, F. M. +3 more
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Morphological and kinematical analysis of the planetary nebula Hu 1-2 and its irradiated bow-shocks [PDF]
Proceedings of the International Astronomical Union, 2011 AbstractWe present narrow-band optical and near-IR images, and high-resolution long-slit spectra of the planetary nebula Hu 1-2 that allow us to make a detailed description of its unusual morphology and internal kinematics. The data also reveal that the ansae of Hu 1-2 probably represent bow-shocks associated to high velocity outflows that are ...
Luis F. Miranda +3 more
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Efficient Energy Conversion through Vortex Arrays in the Turbulent Magnetosheath
The Astrophysical Journal, 2023 Turbulence is often enhanced when transmitted through a collisionless plasma shock. We investigate how the enhanced turbulent energy in the Earth's magnetosheath effectively dissipates via vortex arrays.
Chuanpeng Hou +7 more
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Magnetic Fields Recorded by Chondrules Formed in Nebular Shocks
, 2018 Recent laboratory efforts (Fu et al., 2014) have constrained the remanent magnetizations of chondrules and the magnetic field strengths at which the chondrules were exposed to as they cooled below their Curie points.
Boley, Aaron C. +3 more
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Bow Shocks from Neutron Stars: Scaling Laws and HST Observations of the Guitar Nebula [PDF]
, 2002 The interaction of high-velocity neutron stars with the interstellar medium produces bow shock nebulae, where the relativistic neutron star wind is confined by ram pressure.
Baranov V. B. +7 more
core +2 more sources
Properties of mass-loading shocks, 2. Magnetohydrodynamics [PDF]
, 1992 The one-dimensional magnetohydrodynamics of shocked flows subjected to significant mass loading are considered. Recent observations at comets Giacobini-Zinner and Halley suggest that simple nonreacting MHD is an inappropriate description for active ...
Neubauer, F. M. +3 more
core +2 more sources
Impact of solar wind turbulence on a planetary bow shock
Astronomy & AstrophysicsOver the past decades, near-Earth spacecraft observations have provided insights into the physics of the bow shock, suggesting that solar wind intrinsic turbulence influences the bow shock dynamics. On the other hand, theoretical studies, based on global numerical simulations, have not yet investigated the global 3D interaction between a turbulent ...
E. Behar +6 more
openaire +4 more sources
Solar-Terrestrial Physics, 2020 Study of physical processes in plasma near planets often requires knowledge of the position and shape of the planetary bow shock. Empirical models are usually used since theoretical MHD and kinetic models consume too much computer time and cannot be used to track fast processes. M.I.
G.A. Kotova +3 more
openaire +3 more sources