Journal: Astronomy and Astrophysics

  • 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...
  • Publication
    Magnetic fields in M dwarfs from the CARMENES survey
    Context. M dwarfs are known to generate the strongest magnetic fields among main-sequence stars with convective envelopes, but we are still lacking a consistent...
  • Publication
    Magnetic fields of opposite polarity in sunspot penumbrae
    Context. A significant part of the penumbral magnetic field returns below the surface in the very deep photosphere. For lines in the visible, a large portion of...
  • Publication
    Magnetic flux emergence in granular convection: radiative MHD simulations and observational signatures
    Aims:We study the emergence of magnetic flux from the near-surface layers of the solar convection zone into the photosphere. Methods: To model magnetic flux...
  • Publication
    Magnetic flux emergence into the solar photosphere and chromosphere
    Aims: We model the emergence of magnetized plasma across granular convection cells and the low atmosphere, including layers up to the mid-chromosphere. Methods...
  • Publication
    Magnetic flux in the inter-network quiet Sun from comparison with numerical simulations
    Khomenko et al. estimate the mean magnetic field strength of the quiet Sun to be 20 G. The figure is smaller than several existing estimates, and it comes from...