Astrofísicas: Ambiente solar

  • Publicación
    On the temperature and velocity through the photosphere of a sunspot penumbra
    We investigate the structure in depth of a sunspot penumbra by means of the inversion code of the radiative transfer equation proposed by Ruiz Cobo & del Toro...
  • Publicación
    Phase differences between irradiance and velocity low degree solar acoustic modes revisted
    Sine 1984, simultaneous observations of irradiance and velocity solar acoustic modes, have been carried out by several authors in order to measure the phase...
  • 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...
  • Charla
    SOLAR COMPOSITION AS A REFERENCE FOR STARS
    The solar abundance of chemical elements play an important role in addressing such important issues as the formation, structure, and evolution of the Sun and...
  • Publicación
    Solar observations: Techniques and interpretation
    This book includes four chapters devoted to techniques and interpretation of solar observations. The chapter on high spatial resolution techniques considers...
  • Publicación
    Solar oscillations as seen in the NaI and KI absorption lines
    Data on the solar p modes observed simultaneously in the solar NaI and KI absorption lines were obtained in 1985 by operating two independent resonant...
  • Publicación
    Spectroscopic determination of intensities of umbral bright features and adjacent background
    Profiles of the Na I D doublet in three bright features (clusters of umbral dots), located in a relatively dark umbra, were analyzed by means of the 'local two...
  • Publicación
    The continuum intensity-magnetic field relation in sunspot umbrae
    We describe the work carried out to obtain observational evidence of a local relation between the temperature and the magnetic field in different regions of...