Astrofísicas: Campos magnéticos

  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    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...
  • Publicación
    Twenty-year monitoring of the surface magnetic fields of chemically peculiar stars
    Magnetic chemically peculiar stars of the main sequence can present rotational periods as long as many decades. Here we report the results of an observational...