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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-3695
DTSTART:20151106T213000Z
DTEND:20151106T223000Z
DTSTAMP:20260419T110623Z
LAST-MODIFIED:20151021T163450Z
LOCATION:Chamberlin 2241 (Coffee & Cookies at 3:15pm)
SUMMARY:Plasma kinetics in the inner heliosphere and  the NASA Solar P
 robe Plus mission\, Physics Department Colloquium\, Stuart D. Bale\, U
 C Berkeley
DESCRIPTION:I will describe measurements of the electron velocity dist
 ribution function in the solar wind at 1 AU using the 3DP instrument o
 n NASA's WIND spacecraft.  Three distinct populations of electrons are
  observed and the collisional coupling between the cool\, dense 'core'
  electron population and the solar wind protons can be observed direct
 ly. This Coulomb coupling relationship can be used probe the electron 
 distribution of the solar corona and suggests that the coronal electro
 n population will be highly nonthermal.  I will also describe the NASA
  Solar Probe Plus mission\, which will launch in 2018 and orbit the Su
 n with a final perihelion altitude of 9.8 solar radii\, well within th
 e predicted Alfven surface.  Solar Probe Plus will make the first ever
  in situ measurements of plasma heating processes in the solar corona.
   
URL:https://www.physics.wisc.edu/events/?id=3695
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