Astrophysical: Magnetic fields

  • Publication
    Interaction of solar jets with filaments: Triggering of large-amplitude filament oscillations
    Context. Large-amplitude oscillations (LAOs) are often detected in filaments. Using multi-wavelength observations, their origin can be traced back to the...
  • Publication
    Intermittent Reconnection and Plasmoids in UV Bursts in the Low Solar Atmosphere
    Magnetic reconnection is thought to drive a wide variety of dynamic phenomena in the solar atmosphere. Yet, the detailed physical mechanisms driving...
  • Publication
    Intermittent solar activity by an on-off dynamo.
    We show that the alteration between intervals of cyclic activity and grand minima like the Maunder minimum in the 17th century, which is characteristic for the...
  • Publication
    Internetwork magnetic field distribution from simultaneous 1.56 μm and 630 nm observations
    Aims:We study the contradictory magnetic field strength distributions retrieved from independent analyses of spectropolarimetric observations in the near...
  • Publication
    Internetwork magnetic fields observed in the visible.
    We present internetwork quiet Sun spectropolarimetric observations taken simultaneously at the Fe I lines at 630 and 525 nm. The magnetometry at 630 nm in these...
  • Talk
    Introduction of new postdocs. (1) Stellar magnetic fields, (2) My humble efforts to understand galaxy formation and evolution, (3) Waiting for Herschel: my perspective
    (1) Stellar magnetic fields. Spectro-polarimetry is a very powerful tool to diagnose magnetic fields in a large variety of astrophysical objects. My research...
  • Publication
    Inversion of Stokes Profiles from Solar Magnetic Elements
    We describe a new LTE inversion code for the analysis of Stokes profiles emerging from unresolved magnetic elements. It has been specifically designed to obtain...
  • Publication
    Inversion of Stokes profiles with systematic effects
    Quantitative thermodynamical, dynamical and magnetic properties of the solar and stellar plasmas are obtained by interpreting their emergent non-polarized and...
  • Publication
    Inversion Techniques Applied to Sunspot Spectropolarimetric Data
    Two inversion techniques are compared: the Unno-Rachkov-sky fitting method (UR) and the Stokes Inversion based on Response functions (SIR). Results with...