Astrophysical: Sunspots

  • Talk
    The stochastic, intermittent nature of quiet Sun magnetism
    The quiet Sun (the 99%, or more, of the solar surface not covered by sunspots or active regions) is receiving increased attention in recent years; its role on...
  • Publication
    The Temperature - Magnetic Field Relation in Observed and Simulated Sunspots
    Observations of the relation between continuum intensity and magnetic field strength in sunspots have been made for nearly five decades. This work presents full...
  • Publication
    Thermal-magnetic relation in a sunspot and a map of its Wilson depression
    We present relations between thermal and magnetic quantities in a simple, isolated sunspot, as deduced from the inversion of 1.56 μm spectropolarimetric data...
  • Publication
    Thermal-magnetic relation of a sunspot as inferred from the inversion of 1.5 μm spectral data
    We present the thermal-magnetic relation in a simple, isolated sunspot deduced from the inversion of 1.56 μm spectropolarimetric data. Due to the high Zeeman...
  • 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 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
    Tracing p-mode Waves from the Photosphere to the Corona in Active Regions
    Atmosphere above sunspots is abundant with different types of waves. Among these waves are running penumbral waves in the chromosphere, quasi-periodic...
  • 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...
  • Publication
    Twist, Writhe, and Helicity in the Inner Penumbra of a Sunspot
    The aim of this work is the determination of the twist, writhe, and self-magnetic helicity of penumbral filaments located in an inner sunspot penumbra. For this...