Conceptual Explorations of A Next Generation Experiment to Study Magnetic Reconnection in Large Sized Plasmas at High Lundquist Numbers for Space and Astrophysical Relevances

Details Conceptual Explorations of A Next Generation Experiment to Study Magnetic Reconnection in Large Sized Plasmas at High Lundquist Numbers for Space and Astrophysical Relevances Conceptual Explorations of A Next Generation Experiment to Study Magnetic Reconnection in Large Sized Plasmas at High Lundquist Numbers for Space and Astrophysical Relevances

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsm42a..03j&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SM42A-03

Physics

Plasma Physics

[7831] Space Plasma Physics / Laboratory Studies And Experimental Techniques, [7835] Space Plasma Physics / Magnetic Reconnection, [7845] Space Plasma Physics / Particle Acceleration

Scientific paper

Ongoing dedicated laboratory experiments, such as Magnetic Reconnection Experiment (MRX), have been productive in providing original and valuable data in achieving much needed understanding of fast reconnection and associated processes. However, further critical contributions to space and astrophysical plasmas are limited by the achievable parameters. In this paper, we discuss results from our ongoing efforts to develop plans for a next-generation reconnection experiment based on MRX. Most recent results from two-dimentional, large-scale numerical simulations suggest the existence of a `` reconnection phase diagram", which illustrates `` phase transitions" between different `` phases" or regimes. They include `` collisional MHD without plasmoids regime", `` collisional MHD with plasmoids regime", `` kinetic and MHD hybrid regime", and `` collisionless regime". The latter three regimes are considered to be relevant to reconnection in solar tachocline, solar corona, and Earth's magnetosphere. A natural goal for the next generation of reconnection experiments is the ability to access all of these regimes so that phase transitions can be studied in a controlled environment and the results are potentially applicable to astrophysical plasmas. Accessing these regimes can also potentially provide a unique environment for studying particle acceleration and global self-organization in direct relation to space physics and astrophysics. Experimental requirements, aided by numerical simulations, will be discussed in detail.
H. Ji et al., APS 51st DPP Annual Meeting (November, 2009), http://meetings.aps.org/link/BAPS.2009.DPP.TP8.111

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