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arXiv · 0811.2736

Episodic Magnetic Bubbles and Jets: Astrophysical Implications from Laboratory Experiments

Andrea Ciardi·Sergey V. Lebedev·Adam Frank·Francisco Suzuki-Vidal·Gareth N. Hall·Simon N. Bland·Adam Harvey-Thompson·Eric G. Blackman·Max Camenzind
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Abstract

Collimated outflows (jets) are ubiquitous in the universe appearing around sources as diverse as protostars and extragalactic supermassive blackholes. Jets are thought to be magnetically collimated, and launched from a magnetized accretion disk surrounding a compact gravitating object. We have developed the first laboratory experiments to address time-dependent, episodic phenomena relevant to the poorly understood jet acceleration and collimation region. The experimental results show the periodic ejections of magnetic bubbles naturally evolving into a heterogeneous jet propagating inside a channel made of self-collimated magnetic cavities. The results provide a unique view of the possible transition from a relatively steady-state jet launching to the observed highly structured outflows.

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Andrea Ciardi, Sergey V. Lebedev, Adam Frank, Francisco Suzuki-Vidal, Gareth N. Hall, Simon N. Bland, Adam Harvey-Thompson, Eric G. Blackman, Max Camenzind. 2008-12-16. Episodic Magnetic Bubbles and Jets: Astrophysical Implications from Laboratory Experiments. https://doi.org/10.1088/0004-637x%2F691%2F2%2Fl147

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