Astrophysical: Sunspots

  • Talk
    Radiative MHD simulations of sunspot structure
    For a long time radiative MHD simulations of entire sunspots from first principles were out of reach due to insufficient computing resources. Over the past 4...
  • News
    Researchers have observed the heating produced in the Sun by magnetic waves
    An international team in which researchers from the Instituto de Astrofísica de Canarias (IAC) and the Universidad de La Laguna (ULL) are participating...
  • Publication
    Returning magnetic flux in sunspot penumbrae
    Aims: We study the presence of reversed polarity magnetic flux in sunspot penumbra. Methods: We applied a new regularized method to deconvolve...
  • Publication
    Search for torsional oscillations in isolated sunspots
    In this work we seek evidence for global torsional oscillations in alpha sunspots. We have used long time series of continuum intensity and magnetic field...
  • Publication
    Signatures of Magnetic Reconnection at the Footpoints of Fan-shaped Jets on a Light Bridge Driven by Photospheric Convective Motions
    Dynamical jets are generally found on light bridges (LBs), which are key to studying sunspot decay. So far, their formation mechanism is not fully understood...
  • Publication
    Signatures of the impact of flare-ejected plasma on the photosphere of a sunspot light bridge
    Aims: We investigate the properties of a sunspot light bridge, focusing on the changes produced by the impact of a plasma blob ejected from a C-class flare...
  • Publication
    Size matters
    The new generation of ground-based, large-aperture solar telescopes promises to significantly increase our capabilities to understand the many basic phenomena...
  • Publication
    Small-scale magnetic flux emergence in a sunspot light bridge
    Context. Light bridges are convective intrusions in sunspots that often show enhanced chromospheric activity. Aims: We seek to determine the nature of flux...
  • Publication
    Some properties of an isolated sunspot
    We present an investigation of a single sunspot observed in the neutral Fe line at 1089.6 nm with the Tenerife Infrared Polarimeter at the Vacuum Tower...