Grzegorz Kowal

Fast magnetic reconnection in turbulent media
Wann Am 15.05.2014 von 11:00 bis 12:00
Was
  • Kolloquium
  • Special Seminar
Wo SH, Hörsaal
Termin übernehmen vCal / iCal

Title: Fast magnetic reconnection in turbulent media

In this talk I will present the results of our numerical studies on a model of fast magnetic reconnection in the presence of weak turbulence proposed by Lazarian and Vishniac (1999). The three-dimensional direct numerical simulations show that the reconnection of magnetic field becomes fast, i.e. independent of resistivity, in the presence of weak turbulence in the way consistent with the Lazarian and Vishniac (1999) model. I will discuss our results on the reconnection rate scalings, independence of the way of the turbulence injection happens, the ability of reconnection to generate turbulence and therefore self-sustains its fast rate, as well demonstrate that the process of reconnection is an efficient particle accelerator producing cosmic rays through the first order Fermi process.