Astrophysical: Magnetic fields

  • Publication
    Polarization : Proving ground for methods in radiative transfer.
    Polarization of solar lines arises due to illumination of radiating atom by anisotropic (limb darkened/brightened) radiation. Modelling the polarized spectra of...
  • Publication
    Polarization Accuracy Verification of the Chromospheric LAyer SpectroPolarimeter
    We have developed an advanced UV spectropolarimeter called Chromospheric LAyer SpectroPolarimeter (CLASP2), aimed at achieving very high accuracy measurements (...
  • Publication
    Polarization of Photospheric Lines from Turbulent Dynamo Simulations
    We employ the magnetic and velocity fields from turbulent dynamo simulations to synthesize the polarization of a typical photospheric line. The synthetic Stokes...
  • Publication
    Polynomial Approximants for the Calculation of Polarization Profiles in the He I 10830 Å Multiplet
    The He I multiplet at 10830 Å is formed in the incomplete Paschen-Back regime for typical conditions found in solar and stellar atmospheres. The positions and...
  • Publication
    PORTA: A three-dimensional multilevel radiative transfer code for modeling the intensity and polarization of spectral lines with massively parallel computers
    The interpretation of the intensity and polarization of the spectral line radiation produced in the atmosphere of the Sun and of other stars requires solving a...
  • Publication
    Post common envelope binaries from SDSS. VIII. Evidence for disrupted magnetic braking
    Context. The standard prescription of angular momentum loss in compact binaries assumes magnetic braking to be very efficient as long as the secondary star has...
  • Publication
    Probing deep photospheric layers of the quiet Sun with high magnetic sensitivity
    Context. Investigations of the magnetism of the quiet Sun are hindered by extremely weak polarization signals in Fraunhofer spectral lines. Photon noise...
  • Publication
    Propagating Waves Transverse to the Magnetic Field in a Solar Prominence
    We report an unusual set of observations of waves in a large prominence pillar that consist of pulses propagating perpendicular to the prominence magnetic field...
  • Publication
    Properties of oscillatory motions in a facular region
    Aims: We study the properties of waves in a facular region of moderate strength in the photosphere and chromosphere. Our aim is to statistically analyse the...