Now showing items 1-5 of 9

  • Directional alignment and non-Gaussian statistics in solar wind turbulence

    Osman, Kareem T.; Wan, Minping; Matthaeus, William H.; Breech, Ben; Oughton, Sean (IOP Publishing, 2011)
    The magnetic and velocity field fluctuations in magnetohydrodynamic turbulence can be characterized by their directional alignment and induced electric field. These manifest as coherent spatial correlations which are ...
  • Electron and proton heating by solar wind turbulence

    Breech, Ben; Matthaeus, William H.; Cranmer, S.R.; Kasper, J.C.; Oughton, Sean (American Geophysical Union, 2009)
    Previous formulations of heating and transport associated with strong magnetohydrodynamic (MHD) turbulence are generalized to incorporate separate internal energy equations for electrons and protons. Electron heat conduction ...
  • Heating of the solar wind with electron and proton effects

    Breech, Ben; Cranmer, Steven R.; Matthaeus, William H.; Kasper, Justin C.; Oughton, Sean; Maksimovic, M.; Issautier, K.; Meyer-Vernet, N.; Moncuquet, M.; Pantellini, F. (American Institute of Physics, 2010)
    We examine the effects of including effects of both protons and electrons on the heating of the fast solar wind through two different approaches. In the first approach, we incorporate the electron temperature in an MHD ...
  • Radial evolution of cross helicity at low and high latitudes in the solar wind

    Breech, Ben; Matthaeus, William H.; Minnie, J.; Oughton, Sean; Parhi, S.; Bieber, J.W.; Bavassano, B. (2005)
    We employ a turbulence transport theory to the radial evolution of the solar wind at both low and high latitudes. The theory includes cross helicity, magnetohydrodynamic (MHD) turbulence, and driving by shear and pickup ...
  • Radial evolution of cross helicity in high-latitude solar wind

    Breech, Ben; Matthaeus, William H.; Minnie, J.; Oughton, Sean; Oarhi, S.; Bieber, J.W.; Bavassano, B. (American Geophysical Union, 2005)
    We employ a turbulence transport theory to explain the high-latitude radial evolution of cross helicity, or Alfvénicity, observed by the Ulysses spacecraft. Evolution is slower than at low latitudes due to weakened shear driving.