Astrophysical: Magnetic fields

  • Publication
    Three dimensional structure of a regular sunspot from the inversion of IR Stokes profiles
    The magnetic, thermal and velocity structure of a regular sunspot, observed close to solar disk center is presented. Spectropolarimetric data obtained with the...
  • Publication
    Three-dimensional magnetic field structure of a flux-emerging region in the solar atmosphere
    We analyze high-resolution spectropolarimetric observations of a flux-emerging region (FER) in order to understand its magnetic and kinematic structure. Our...
  • Publication
    Three-dimensional Plasmoid Evolution in the Solar Atmosphere
    We present clear evidence of the formation of three-dimensional (3D) plasmoids in the current sheet between two magnetic flux systems in a 3D numerical...
  • Publication
    Three-dimensional Radiative Transfer Simulations of the Scattering Polarization of the Hydrogen Lyα Line in a Magnetohydrodynamic Model of the Chromosphere–Corona Transition Region
    Probing the magnetism of the upper solar chromosphere requires measuring and modeling the scattering polarization produced by anisotropic radiation pumping in...
  • Publication
    Three-dimensional simulations of solar magneto-convection including effects of partial ionization
    In recent decades, REALISTIC three-dimensional radiative-magnetohydrodynamic simulations have become the dominant theoretical tool for understanding the complex...
  • Publication
    Three-dimensional structure of a sunspot light bridge
    Context. Active regions are the most prominent manifestations of solar magnetic fields; their generation and dissipation are fundamental problems in solar...
  • Publication
    Towards an understanding of the Of?p star HD 191612: optical spectroscopy
    We present extensive optical spectroscopy of the early-type magnetic star HD 191612 (O6.5f?pe-O8fp). The Balmer and HeI lines show strongly variable emission...
  • Publication
    Truncated stellar discs in the near infrared. II. Statistical properties and interpretation
    The results obtained in Paper I are used to study possible relationships between the truncation radius of stellar discs in the NIR and structural parameters of...
  • Publication
    Turbulent Erosion of Magnetic Flux Tubes
    Results from a numerical and analytical investigation of the solution of a nonlinear axisymmetric diffusion equation for the magnetic field are presented for...