Global ETD Search
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Showing 1 to 7 of 7 for “"Bow shocks"”.
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Search for gamma-ray emission from bow shocks of runaway stars
… accelerated to ultrarelativistic energies in the shocks of these objects. The environments of supernova remnants are complex and challenge detailed modelling of the processes leading to high-energy gamma-ray emission. The study of shock acceleration at bow shocks, created by the supersonic …
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Multi-dimensional simulations of bow shocks of massive, high-velocity runaway stars
Stellar bow shocks result from the supersonic collision of stellar winds ejected by runaway stars and the interstellar medium (ISM). Studying their properties provides constraints on mass-loss rates, stellar wind velocities and the properties of the ISM. In this work, we study the formation of bow …
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Polarized Bow Shock Nebulae Reveal Features of the Winds and Environments of Massive Stars
… wind and ISM is supersonic, then a stellar wind bow shock is formed. Bow shocks and related density enhancements produced by the winds of massive stars moving through the interstellar medium provide important information regarding the motions of the stars, the properties of their stellar winds, …
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Evolution of coronal mass ejections through the heliosphere
… in the sheath regions of ICMEs with preceding shocks. A theoretical analysis shows that shock-induced temperature anisotropies can account for many observations made in interplanetary shocks, planetary bow shocks and the termination shock in the heliosphere. A comparative study of these shocks …
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Theoretical And Computational Study of Steady Transonic Flows of Bethe-Zel\'dovich-Thompson Fluids
… collisions between expansion and compression shocks, the prediction and observation of two compressive bow shocks in supersonic flows, and the observation of as many as three normal stern shocks following an oblique trailing edge shock.
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Laboratory Experiments of High-Energy-Density Shocks in Magnetized Supersonic Plasma Flows
Magnetized shocks are of interest in many astrophysical environments, in which high Mach number flows interact with ambient media, planetary obstacles, and/or spacecraft to generate strongly radiating shocks. Some examples include extrastellar jets from radio galaxies, relativistic jets from …
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Laboratory Astrophysics Studies of Magnetized Collisionless Shock Precursors and the ³He³He Proton Spectrum at the OMEGA Laser Facility
… For the macrophysics contribution, collisionless shocks experiments were conducted at the OMEGA laser facility using the new gas jet platform. Collisionless shocks are shock waves formed through plasma processes when particle collisions are negligible. These shocks can form as bow shocks in the …