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Astrophysics of magnetically collimated jets generated from laser-produced plasmas

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arxiv 1212.2805 v1 pith:Q7VI4WHT submitted 2012-12-12 physics.plasm-ph astro-ph.SR

A. Ciardi , T. Vinci , J. Fuchs , B. Albertazzi , C. Riconda , H. Pépin , O. Portugall This is my paper · ORCID
classification physics.plasm-phastro-ph.SR
keywords jetscollimatedenvelopefieldlaser-producedmagneticmagneticallymechanism
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The generation of astrophysically relevant jets, from magnetically collimated, laser-produced plasmas, is investigated through three-dimensional, magneto-hydrodynamic simulations. We show that for laser intensities I ~ 10^12 - 10^14 W/cm^2, a magnetic field in excess of ~ 0.1 MG, can collimate the plasma plume into a prolate cavity bounded by a shock envelope with a standing conical shock at its tip, which re-collimates the flow into a super magneto-sonic jet beam. This mechanism is equivalent to astrophysical models of hydrodynamic inertial collimation, where an isotropic wind is focused into a jet by a confining circumstellar torus-like envelope. The results suggest an alternative mechanism for a large-scale magnetic field to produce jets from wide-angle winds. (abridged version)

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  1. Laser experiment for the study of accretion dynamics of Young Stellar Objects: design and scaling

    astro-ph.SR 2019-09 conditional novelty 5.0 of 10

    A magnetically collimated laser plasma jet is shown to be a scalable laboratory model for high-plasma-beta accretion onto Classical T Tauri stars.

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