BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
X-WR-CALNAME:Physics Colloquium: Prof. Kenichi Nishikawa
X-WR-TIMEZONE:Central Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20261007T063742Z
UID:tag:localist.com\,2008:EventInstance_50223962087506
DTSTART:20251007T210000Z
DTEND:20251007T220000Z
DESCRIPTION:Prof. Kenichi Nishikawa (Alabama A&M University)\n\n3D PIC simu
 lations for relativistic jets with a toroidal magnetic field and associate
 d synthetic spectra and polarizations\n\nParticle-in-Cell simulations can 
 provide a possible answer to an important key issue of astrophysical plasm
 a jets\, i.e.\, how a toroidal magnetic field affects the evolution of pai
 r and electron-ion jets associated to the acceleration of particles. We sh
 ow that Weibel\, mushroom\, and kinetic Kelvin-Helmholtz instabilities exc
 ited at the linear stage\, generate a quasi-steady electric field componen
 t along the jet\, which accelerates and decelerates electrons. We find tha
 t the two different jet compositions (pair and electron-ion) generate diff
 erent instability modes respectively and observe significant differences i
 n the structure of the strong electromagnetic fields that are driven by th
 e kinetic instabilities with the pair jet. Moreover\, the magnetic field i
 n the non-linear stage generated by different instabilities is dissipated 
 and reorganized into new topologies. A 3D magnetic field topology depictio
 n indicates possible reconnection sites in the non-linear stage where the 
 particles are significantly accelerated by the dissipation of the magnetic
  field associated to a possible reconnection manifestation.
GEO:34.366291;-89.537983
LOCATION:Lewis Hall\, Lewis 101
SUMMARY:Physics Colloquium: Prof. Kenichi Nishikawa
URL;VALUE=URI:https://eventcalendar.olemiss.edu/event/physics-colloquium-pr
 of-kenichi-nishikawa
CATEGORIES:Lectures
END:VEVENT
END:VCALENDAR