Astrophysical: Magnetic fields

  • Publication
    Twenty-year monitoring of the surface magnetic fields of chemically peculiar stars
    Magnetic chemically peculiar stars of the main sequence can present rotational periods as long as many decades. Here we report the results of an observational...
  • Publication
    Two magnetic components in sunspot penumbrae
    The magnetic and kinematic configuration of sunspot penumbrae is investigated by performing an inversion of the Stokes profiles of three infrared lines at 1565...
  • Publication
    Two new young, wide, magnetic + non-magnetic double-degenerate binary systems
    We report the discovery of two, new, rare, wide, double-degenerate binaries that each contain a magnetic and a non-magnetic star. The components of SDSS J092646...
  • Publication
    Two-dimensional solar spectropolarimetry with the KIS/IAA Visible Imaging Polarimeter
    Context. Spectropolarimetry at high spatial and spectral resolution is a basic tool to characterize the magnetic properties of the solar atmosphere. Aims: We...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...