Astrofísicas: Campos magnéticos solares

  • Publicación
    Mapping the Hidden Magnetic Field of the Quiet Sun
    The Sun is the only star where we can resolve the intricate magnetism that all convective stars harbor. Yet, more than 99% of its visible surface along the...
  • Publicación
    Mapping the Longitudinal Magnetic Field in the Atmosphere of an Active Region Plage from the Inversion of the Near-ultraviolet CLASP2.1 Spectropolarimetric Data
    We apply the HanleRT Tenerife Inversion Code to the spectropolarimetric observations obtained by the Chromospheric Layer Spectropolarimeter. This suborbital...
  • Charla
    Mapping the Sun's upper photosphere with artificial neural networks
    In this talk I'll present results from a recent paper in which we have developed a new analysis technique for solar spectra based on artificial neural networks...
  • Publicación
    Measurements of Photospheric and Chromospheric Magnetic Field Structures Associated with Chromospheric Heating over a Solar Plage Region
    In order to investigate the relation between magnetic structures and the signatures of heating in plage regions, we observed a plage region with the He I 1083.0...
  • Publicación
    Multiline Stokes Synthesis of Ellerman Bombs: Obtaining Seamless Information from Photosphere to Chromosphere
    Magnetic reconnection in the lower atmosphere is a critical process in determining the chromospheric dynamics, such as Ellerman bombs and UV bursts. Because the...
  • Charla
    Mysteries of the magnetic Sun
    The Sun presents us with many unsolved mysteries. In this talk I discuss three of them that have intrigued me for the last 50 years. Solar flares are the most...
  • Publicación
    Observation and Modeling of the Circular Polarization of the Cr I Magnetic-field-induced Transition at 533.03 nm
    We study the circular polarization of the magnetic-field-induced transition (MIT) between the 3d 5( 6 S)4d 7 D 2 and 3d 5( 6 S)4p 7 P 4° states of Cr I at 533...
  • Publicación
    On the (Mis)Interpretation of the Scattering Polarization Signatures in the Ca II 8542 Å Line through Spectral Line Inversions
    Scattering polarization tends to dominate the linear polarization signals of the Ca II 8542 Å line in weakly magnetized areas (B ≲ 100 G), especially when the...
  • Charla
    On the probable existence of an abrupt magnetization in the upper chromosphere of the quiet Sun
    We report on a detailed radiative transfer modeling of the observed scattering polarization in the H-alpha line, which allows us to infer quantitative...