Astrophysical: Magnetic fields

  • Publication
    Evidence for Fine Structure in the Chromospheric Umbral Oscillation
    Novel spectropolarimetric observations of the He I multiplet are used to explore the dynamics of the chromospheric oscillation above sunspot umbrae. The results...
  • Publication
    Evidence for Quasi-Isotropic Magnetic Fields from Hinode Quiet-Sun Observations
    Some recent investigations of spectropolarimetric observations of the Zeeman effect in the Fe I lines at 630 nm carried out with the Hinode solar space...
  • Publication
    Evidence of Magnetic Accretion in an SW Sextantis Star: Discovery of Variable Circular Polarization in LS Pegasi
    We report on the discovery of variable circular polarization in the SW Sextantis star LS Pegasi. The observed modulation has an amplitude of ~0.3% and a period...
  • Publication
    Evolution of active galactic nuclei broad-line region clouds: low- and high-ionization lines
    The formation of quasar broad-line region (BLR) clouds via thermal instability in the presence of Alfvén heating has been discussed by Gonçalves, Jatenco...
  • Publication
    Evolution of Stokes V area asymmetry related to a quiet Sun cancellation observed with GRIS/IFU
    A quiet Sun magnetic flux cancellation event at the disk center was recorded using the Integral Field Unit (IFU) mounted on the GREGOR Infrared Spectrograph...
  • Publication
    Explanation of the activity sensitivity of Mn I 5394.7 Å
    There is a long-standing debate why the Mn i 5394.7 Å line in the solar irradiance spectrum brightens more at higher activity than other photospheric lines. The...
  • Publication
    Exploring the Magnetic and Thermal Evolution of a Coronal Jet
    Coronal jets are the captivating eruptions that are often found in the solar atmosphere and primarily formed due to magnetic reconnection. Despite their short...
  • Publication
    Exploring the making of a galactic wind in the starbursting dwarf irregular galaxy IC 10 with LOFAR
    Low-mass galaxies are subject to strong galactic outflows, in which cosmic rays may play an important role; they can be best traced with low-frequency radio...
  • Publication
    Exploring the Sun's upper atmosphere with neural networks: Reversed patterns and the hot wall effect
    We have developed an inversion procedure designed for high-resolution solar spectro-polarimeters, such as those of Hinode and the DKIST. The procedure is based...