The Mg II h and k lines are among the strongest in the near-ultraviolet solar spectrum and their line core originates in the upper chromosphere, just below the...
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PublicationFormation of the Mg II h and k Polarization Profiles in a Solar Plage Model and Their Suitability to Infer Magnetic Fields
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PublicationInfluence of unresolved optically-thin irregularities on quiet Sun magnetic field determinations.
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TalkIntroduction 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...
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PublicationInversion of the radiative transfer equation for polarized light
Since the early 1970s, inversion techniques have become the most useful tool for inferring the magnetic, dynamic, and thermodynamic properties of the solar...
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TalkMagnetic bright points in the quiet Sun
We present a visual determination of the number of bright points (BPs) existing in the quiet Sun, which are structures though to trace intense kG magnetic...
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PublicationMagnetic Field Information in the Near-ultraviolet Fe II Lines of the CLASP2 Space Experiment
We investigate theoretically the circular polarization signals induced by the Zeeman effect in the Fe II lines of the 279.3-280.7 nm spectral range of the...
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TalkMagnetic reconnection in partially ionized plasmas
The phenomenon of magnetic reconnection in a magnetized plasma has been a subject of numerous studies over the past several decades in a variety of contexts...
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PublicationMapping 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...
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TalkMapping 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...