BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3745
DTSTART:20151016T203000Z
DTEND:20151016T213000Z
DTSTAMP:20260309T004234Z
LAST-MODIFIED:20151008T190615Z
LOCATION:2241 Chamberlin Hall (Coffee & Cookies at 3:15pm)
SUMMARY:Particle acceleration and magnetic field generation in astroph
 ysical plasmas\, Physics Department Colloquium\, Anatoly Spitkovsky\, 
 Princeton University
DESCRIPTION:Shocks in low density plasmas (so-called "collisionless sh
 ocks") are ubiquitous throughout the Universe\, and are thought to be 
 responsible for the generation of nonthermal particles that extend ove
 r decades in energy. I will describe the progress in modeling collisio
 nless shock structure and particle acceleration using ab-initio kineti
 c simulations\, focusing on the current understanding of magnetic fiel
 d amplification mechanisms\, the conditions necessary for particle inj
 ection into the acceleration process\, and the physics behind the elec
 tron-to-ion ratio in shock acceleration. I will also describe a new sc
 enario for generation of the first magnetic fields during structure fo
 rmation that can be important for seeding magnetic fields in galaxies.
  
URL:https://www.physics.wisc.edu/events/?id=3745
END:VEVENT
END:VCALENDAR