Astrophysical: Magnetic fields

  • Publication
    Detection of Polarization from the E4Π-A4Π System of FeH in Sunspot Spectra
    Here we report the first detection of polarization signals induced by the Zeeman effect in spectral lines of the E4Π-A4Π system of FeH located around 1.6 μm...
  • Publication
    Detection of sea-serpent field lines in sunspot penumbrae
    Aims:We investigate the spatial distribution of magnetic polarities in the penumbra of a spot observed very close to disk center. Methods: High angular and...
  • Publication
    Determination of field strengths in the quiet Sun
    The magnetism in the quiet regions of the solar photosphere carries information on the dynamo processes and its interaction with the convection of the outer...
  • Publication
    Determination of the Coronal Density Stratification from the Observation of Harmonic Coronal Loop Oscillations
    The recent detection of multiple harmonic standing transverse oscillations in coronal loops by Verwichte et al. is of special importance, as it allows one to...
  • Publication
    Determination of the Magnetic Field Vector via the Hanle and Zeeman Effects in the He I λ10830 Multiplet: Evidence for Nearly Vertical Magnetic Fields in a Polar Crown Prominence
    The magnetic field is the key physical quantity responsible for the formation, stability, and evolution of solar prominences (ribbons of cool dense gas embedded...
  • Publication
    Determining the dynamics and magnetic fields in He I 10830 Å during a solar filament eruption
    Aims: We investigate the dynamics and magnetic properties of the plasma, including the line-of-sight velocity (LOS) and optical depth, as well as the vertical...
  • Publication
    Diagnostic capabilities of spectropolarimetric observations for understanding solar phenomena. I. Zeeman-sensitive photospheric lines
    Future ground-based telescopes will expand our capabilities for simultaneous multi-line polarimetric observations in a wide range of wavelengths, from the near...
  • Publication
    Diagnostic methods based on scattering polarization and the joint action of the Hanle and Zeeman effects
    Polarized light provides the most reliable source of information at our disposal for diagnosing the physical properties of astrophysical plasmas, including the...
  • Publication
    Diagnostic potential of the Ca II 8542 Å line for solar filaments
    Aims: In this study we explore the diagnostic potential of the chromospheric Ca II line at 8542 Å for studying the magnetic and dynamic properties of solar...