Results 21 to 30 of about 288 (182)
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
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, 2008 review paper on current state of knowledge about planetary bow shocks, 32 pp, 19 ...
Treumann, R. A., Jaroschek, C. H.
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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
doaj +1 more source
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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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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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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The bow-shock and high-speed jet in the faint, 40 arcmin diameter, outer halo of the evolved Helix planetary nebula (NGC 7293) [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 7 pages, 6 figures, accepted for publication in ...
Meaburn, John +2 more
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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
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The Anatomical Record, EarlyView.Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo +5 more
wiley +1 more source
Archaeological Prospection, EarlyView.ABSTRACT Medieval and early modern drowned villages in the intertidal zone of the Scheldt estuary (the Netherlands) constitute intriguing yet largely understudied components of north‐western Europe's underwater cultural heritage. Despite their high archaeological potential as time capsules of past settlement landscapes, research has remained limited ...
Jan Trachet +9 more
wiley +1 more source