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SUMMARY:MHD wave turbulence in space plasmas - Sébastien Galtier (Univers
 ité Paris-Saclay)
DTSTART:20251124T160000Z
DTEND:20251124T170000Z
UID:TALK237613@talks.cam.ac.uk
CONTACT:Mattias Brynjell-Rahkola
DESCRIPTION:Waves and turbulence are two fundamental characteristics of sp
 ace plasmas. In this context\, it seems natural to rely on wave turbulence
  theory to interpret in situ data\, such as that provided by PSP/MMS (NASA
 )\, whose degree of precision is unique in astrophysics. In this seminar\,
  I will review recent observations and theoretical results on MHD wave tur
 bulence\, then focus on the case of compressible MHD in the limit of low b
 eta\, for which we can prove that the Iroshnikov-Kraichnan spectrum is an 
 exact solution.\n\nReferences:\n\nS. Galtier\, Fast magneto-acoustic wave 
 turbulence and the Iroshnikov-Kraichnan spectrum\, J. Plasma Physics 89 (2
 023)\n\nS. Galtier\, Physics of wave turbulence\, Cambridge University Pre
 ss (2022)
LOCATION:MR14 DAMTP and online
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