Astrofísicas: Campos magnéticos

  • Publicación
    Two-fluid simulations of Rayleigh-Taylor instability in a magnetized solar prominence thread. II. Effects of collisionality
    Solar prominences are formed by partially ionized plasma with inter-particle collision frequencies generally warranting magnetohydrodynamic treatment. In this...
  • Publicación
    Two-fluid simulations of waves in the solar chromosphere. I. Numerical code verification
    Solar chromosphere consists of a partially ionized plasma, which makes modeling the solar chromosphere a particularly challenging numerical task. Here we...
  • Publicación
    Two-fluid simulations of waves in the solar chromosphere. II. Propagation and damping of fast magneto-acoustic waves and shocks
    Waves and shocks traveling through the solar chromospheric plasma are influenced by its partial ionization and weak collisional coupling, and may become...
  • Publicación
    Ubiquitous hundred-Gauss magnetic fields in solar spicules
    Aims: We aim to study the magnetic field in solar spicules using high-resolution spectropolarimetric observations in the Ca II 8542 Å line obtained with the...
  • Noticia
    Un caos magnético escondido en la galaxia del Remolino
    En lo más profundo de la estructura espiral de las galaxias hay una fuerza escondida: los campos magnéticos. Pese a ser invisibles a los telescopios...
  • Publicación
    Understanding internetwork magnetic fields as determined from visible and infrared spectral lines
    We present numerical experiments aimed at understanding why near-infrared observations systematically deliver weak magnetic fields in the internetwork, whereas...
  • Publicación
    Understanding the thermal and magnetic properties of an X-class flare in the low solar atmosphere
    We analyse the spatial distribution and vertical stratification of the physical parameters of the solar atmosphere when an X-class flare occurs. We made use of...
  • Publicación
    Upper chromospheric magnetic field of a sunspot penumbra: observations of fine structure
    Aims: The fine-structure of the magnetic field in a sunspot penumbra in the upper chromosphere is to be explored and compared to that in the photosphere...
  • Publicación
    Upper limits from the LIGO and TAMA detectors on the rate of gravitational-wave bursts
    We report on the first joint search for gravitational waves by the TAMA and LIGO collaborations. We looked for millisecond-duration unmodeled gravitational-wave...