• Chandrasekhar–Kendall functions in astrophysical dynamos

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    • Keywords

       

      Magnetohydrodynamics; dynamos; turbulence.

    • Abstract

       

      Some of the contributions of Chandrasekhar to the field of magnetohydrodynamics are highlighted. Particular emphasis is placed on the Chandrasekhar–Kendall functions that allow a decomposition of a vector field into right- and left-handed contributions. Magnetic energy spectra of both contributions are shown for a new set of helically forced simulations at resolutions higher than what has been available so far. For a forcing function with positive helicity, these simulations show a forward cascade of the right-handed contributions to the magnetic field and nonlocal inverse transfer for the left-handed contributions. The speed of inverse transfer is shown to decrease with increasing value of the magnetic Reynolds number.

    • Author Affiliations

       

      Axel Brandenburg1 2

      1. NORDITA, AlbaNova University Center, Roslagstullsbacken 23, SE 10691 Stockholm, Sweden
      2. Department of Astronomy, Stockholm University, SE 10691 Stockholm, Sweden
    • Dates

       
  • Pramana – Journal of Physics | News

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