Astrofísicas: Actividad solar

  • Publicación
    Photometry of sunspot penumbrae
    The authors present the results of a statistical analysis of the penumbra of sunspots. The intensity distribution, and several parameters derived from it, is...
  • Publicación
    Rise times of horizontal magnetic flux tubes in the convection zone of the sun
    Solutions of the equations describing the motion of a straight horizontal magnetic flux tube in the convection zone of the sun including inertial term and...
  • Publicación
    Seismic Holography of the Solar Interior near the Maximum and Minimum of Solar Activity
    The base of the convection zone and the tachocline play a major role in the study of the dynamics of the Sun, especially in the solar dynamo. Here, we present a...
  • Proyecto
    Sismología Solar y Estelar y Búsqueda de Exoplanetas
    Los objetivos principales de este proyecto son: 1) estudiar la estructura y la dinámica del interior solar, 2) ampliar este estudio a otros tipos de estrellas y...
  • Publicación
    Solar structure from global studies of the 5-minute oscillation
    An overall view of the solar surface is presented with emphasis on the study of low 1 value oscillations. Line of sight velocity measurements of the whole solar...
  • Charla
    Solar-terrestrial relations – combined remote sensing and in-situ data
    The Sun is an active star that influences the Earth as well as the entire solar system. Most dynamic phenomena on the Sun are observed as coronal mass ejections...
  • Publicación
    Sunspot populations and their relation with the solar cycle
    The joint consideration of theoretical and observational arguments is used to conclude that two different spot populations co-exist in the Sun.
  • Publicación
    Temporal and center-to-limb variations of the K I 769.9 NM line profiles in quiet and active solar regions
    The temporal and spatial behaviour of the K I 769.9 nm solar line are investigated using several series of high spectral resolution low-noise photoelectric...
  • Publicación
    The global oscillation spectrum of the sun. I - Analysis of daily power spectra of velocity measurements
    Daily observations of solar global oscillations using a resonant scattering spectrometer have been obtained by observing integral sunlight during the summer...