Journal: Astronomy and Astrophysics

  • Publication
    Magnetic activity of red giants: Correlation between the amplitude of solar-like oscillations and chromospheric indicators
    Previous studies have found that red giants (RGs) in close binary systems undergoing spin-orbit resonance exhibit an enhanced level of magnetic activity with...
  • Publication
    Magnetic cycles and rotation periods of late-type stars from photometric time series
    Aims: We investigate the photometric modulation induced by magnetic activity cycles and study the relationship between rotation period and activity cycle(s) in...
  • Publication
    Magnetic field amplification and structure formation by the Rayleigh-Taylor instability
    We report our results from a set of high-resolution, two-fluid, non-linear simulations of the magnetized Rayleigh Taylor instability (RTI) at the interface...
  • Publication
    Magnetic field amplification and structure formation by the Rayleigh-Taylor instability (Corrigendum)
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    Magnetic field diagnostics of prominences with the Mg II k line 3D Stokes inversions versus traditional methods
    The Mg II k resonance line is commonly used for diagnosing the solar chromosphere. We theoretically investigated its intensity and polarization in solar...
  • Publication
    Magnetic field emergence in mesogranular-sized exploding granules observed with sunrise/IMaX data
    We report on magnetic field emergences covering significant areas of exploding granules. The balloon-borne mission Sunrise provided high spatial and temporal...
  • Publication
    Magnetic field emergence in quiet Sun granules
    Aims:We describe a new form of small-scale magnetic flux emergence in the quiet Sun. This process seems to take vertical magnetic fields from subsurface layers...
  • Publication
    Magnetic field fluctuations in the shocked umbral chromosphere
    Context. Umbral chromospheric observations show the presence of magnetoacoustic shocks. Several recent studies have reported magnetic field fluctuations...
  • Publication
    Magnetic field strength of active region filaments
    Aims: We study the vector magnetic field of a filament observed over a compact active region neutral line. Methods: Spectropolarimetric data acquired with TIP...