Astrofísicas: Actividad solar

  • Noticia
    El IAC presenta el vídeo del proyecto POLMAG
    El IAC presenta un vídeo divulgativo del proyecto “Radiación Polarizada para Explorar el Magnetismo de la Atmósfera Solar” (POLMAG). En este vídeo, varios...
  • Blog
    El Sol desata una tormenta geomagnética excepcional que podría hacer visibles auroras en latitudes inusuales
    Una fulguración solar de gran intensidad provoca una tormenta geomagnética severa y un raro evento de partículas El pasado 11 de noviembre, a las 10:04 hora...
  • Publicación
    Exploring the Magnetic and Thermal Evolution of a Coronal Jet
    Coronal jets are the captivating eruptions that are often found in the solar atmosphere and primarily formed due to magnetic reconnection. Despite their short...
  • Publicación
    Fragments in sunspots
    High-resolution white light and H-alpha observations are used to study the development of 15 large active solar regions. The behavior of the magnetic fragments...
  • Publicación
    Frequency shift of solar p-modes as seen by cross correlation analysis
    Data obtained at the Observatorio del Teide (Tenerife) during the years 1978 to 1988 using a resonant scattering spectrophotometer, is analyzed to look for...
  • Publicación
    Instability and eruption of magnetic flux tubes in the solar convection zone
    We present a consistent model of storage, instability and dynamical eruption of magnetic flux tubes in the solar convection zone and underlying overshoot region...
  • Publicación
    Long-term Spatial and Temporal Variations of Aurora Borealis Events in the Period 1700 - 1905
    Catalogues and other records of aurora-borealis events were used to study the long-term spatial and temporal variation of these phenomena in the period from...
  • Publicación
    Long-Term Trends and Gleissberg Cycles in Aurora Borealis Records (1600 - 2015)
    The long-term spatial and temporal variation of aurora borealis events from 1600 to the present were studied using catalogues and other records of these...
  • Publicación
    Long-term Variation of Solar Activity by a Dynamo Based on Magnetic Flux Tubes
    We show that cyclic activity and Maunder-type grand minima can be explained by a dynamo driven by the instability of magnetic flux tubes in the overshoot layer...