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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:3
UID:UW-Physics-Event-8015
DTSTART:20221201T160000Z
DURATION:PT1H0M0S
DTSTAMP:20260417T040845Z
LAST-MODIFIED:20221122T162247Z
LOCATION:B343 Sterling or https://uwmadison.zoom.us/j/3238974118?pwd=a
 U5yZ2hKbGhjZGxldU9IRGMvTW9RZz09
SUMMARY:Exploration of problems in space physics using the Magnetosphe
 ric Multiscale Mission\, Preliminary Exam\, Jack Schroeder\, Physics G
 raduate Student
DESCRIPTION:The main topic of discussion will be on recent work on mag
 netic reconnection in the Earth’s magnetotail. Models for collisionl
 ess magnetic reconnection in near-Earth space are distinctly character
 ized as 2D or 3D. In 2D kinetic models\, the frozen-in law for the ele
 ctron fluid is usually broken by laminar dynamics involving structures
  set by the electron orbit size\, while in 3D models the width of the 
 electron diffusion region is broadened by turbulent effects. We presen
 t an analysis of in situ spacecraft observations from the Earth's magn
 etotail of a fortuitous encounter with an active reconnection region\,
  mapping the observations onto a 2D spatial domain. While the event li
 kely was perturbed by low-frequency 3D dynamics\, the structure of the
  electron diffusion region remains consistent with results from a 2D k
 inetic simulation. As such\, the event represents a unique validation 
 of 2D kinetic\, and laminar reconnection models.<br>
\n<br>
\nAddition
 ally\, future work regarding magnetic pumping at Earth’s bow shock w
 ill be discussed.
URL:https://www.physics.wisc.edu/events/?id=8015
END:VEVENT
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