MG15 - Talk detail |
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Participant |
Toropina, Olga | |||||||
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Institution |
Space Research Institute - 84/32 Profsoyuznaya Str - Moscow - Moscow region - Russia | |||||||
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AC2 |
Accepted |
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Talk |
Oral abstract |
Title |
Modelling The Bow Shock Pulsar Wind Nebulae Propagating Through A Non-Uniform ISM | |||||
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Abstract |
Many pulsars propagate through the interstellar medium (ISM) with supersonic velocities, and their pulsar winds interact with the interstellar medium (ISM), forming bow shocks and magnetotails (PWN). We model the propagation of pulsars through the inhomogeneous ISM using non-relativistic axisymmetric magneto-hydrodynamic (MHD) simulations. We take into account the wind from the star, and the azimuthal and poloidal components of the magnetic field and investigate the PWN at different levels of magnetization (the ratio of magnetic to matter energy-densities) in the wind. We consider the interaction of PWN with small-scale and large-scale inhomogeneities in the ISM at different values of magnetization. We conclude that the inhomogeneities in the ISM can change the shapes of the bow shocks and magnetotails at different values of the magnetization. We compare the results of our simulations with the images of the Guitar Nebula and other PWN that show irregularities in the shapes of their bow shocks and magnetotails. We conclude that these irregularities may be caused by the interaction of PWN with the inhomogeneities in the ISM. |
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Pdf file |
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Session |
AC2 |
Accepted |
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Time |
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Talk |
Oral abstract |
Title |
MHD Simulation of Laboratory Jets | |||||
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Abstract |
We performed a numerical MHD simulation of a laboratory experiment using powerful lasers to study the formation and evolution of jets. The laboratory experiment is as follows. A powerful laser instantly heats the target in a vacuum chamber from which charged particles begin to run. On the opposite side of the camera a detector is installed, which fixes the flow of particles. To describe these processes and simulate plasma flow, we chose a numerical method, boundary and initial conditions. We investigated the picture of the flow and compared it with experiment. We found the distribution of the density of matter at various distances from the target and at different time, and investigated the possible structures of matter on the surface of the detector |
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Pdf file |
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