1 / 16

PIC simulations of magnetic reconnection

PIC simulations of magnetic reconnection. Cerutti et al. 2013. 3D PIC simulations of relativistic pair plasma reconnection ( Zeltron code) Includes Radiation reaction force ( Lorentz -Abraham- Dirac equation ) Guide field Results :

niesha
Download Presentation

PIC simulations of magnetic reconnection

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. PIC simulations of magneticreconnection

  2. Cerutti et al. 2013 • 3D PIC simulations of relativisticpair plasma reconnection (Zeltron code) • Includes • Radiationreaction force (Lorentz-Abraham-Diracequation) • Guide field Results: • Tearinginstability and fast reconnection (xy-plane): 70% of the magneticenergydissipated in particleacceleration. • Kinkinstability of the currentsheet (yz-plane): 55% of the total magnetic energy is dissipated. • Relativistickinkinstabilitydisrupt the layer (seealso, e.g., Zenitani & Hoshino 2008, Sironi & Spitkovsky 2011). • A moderate guide fieldstabilizes the layer and enableparticleacceleration

  3. Tearinginstability

  4. Tearinginstability

  5. Tearinginstability

  6. Tearinginstability

  7. Kinkinstability of the currentsheet

  8. Kinkinstability of the currentsheet

  9. Kinkinstability of the currentsheet

  10. Ratio of the inductive electric field |EY| to the magnetic field |Btotal| = (BX2+BZ2)1/2 Particle acceleration in reconnection takes place mainly around the X-type neutral region, where the amplitudes of magnetic fields are weak and charged particles become unmagnetized. They are accelerated by an inductive electric field perpendicular to the two-dimensional reconnection magnetic fields(Zenitani & Hoshino 2001).

  11. Baty, Petri, Zenitani 2013 • Resistive relativistic 2D MHD simulations • Fast reconnectionduring double tearingmodes in relativistic plasma • Time scale of instabilityweaklydepending on the Lundquistnumber

More Related