Astrophysical: Sunspots

  • Publication
    Polarimetric Measurements of Sunspots
    Making emphasis on observations that have included some type of polarization analysis, I concentrate on two subjects. First, the vector magnetic field...
  • Publication
    Properties of horizontal flows inside and outside a solar pore
    Horizontal velocities and their temporal variations inside a large pore and in the surrounding granulation are studied from a 73 min sequence of white light...
  • Publication
    Properties of sunspot light bridges on a geometric height scale
    Context. Investigating light bridges (LBs) helps us comprehend key aspects of sunspots. However, few studies have analyzed the properties of LBs in terms of the...
  • Publication
    Properties of sunspots in cycle 23. I. Dependence of brightness on sunspot size and cycle phase
    Aims:In this paper we investigate the dependence of umbral core brightness, as well as the mean umbral and penumbral brightness on the phase of the solar cycle...
  • Publication
    Properties of the Umbral Filament Observed in Active Region NOAA 12529
    Recent observations of the solar photosphere revealed the presence of elongated filamentary bright structures inside sunspot umbrae, called umbral filaments...
  • 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...
  • Publication
    Recovering coherent flow structures in active regions using machine learning
    Analysing high-resolution solar atmospheric observations requires robust techniques to recover plasma flow features across different scales, especially in...
  • 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...