Publicación
NLTE effects in iron spectrum of sunspots.
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PublicaciónNumerical determination of the cutoff frequency in solar modelsContext. In stratified atmospheres, acoustic waves can only propagate if their frequency is higher than the cutoff value. The determination of the cutoff...
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PublicaciónNumerical Modeling of Magnetohydrodynamic Wave Propagation and Refraction in SunspotsWe present numerical simulations of magnetoacoustic wave propagation from the photosphere to the low chromosphere in a magnetic sunspot-like structure. A thick...
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PublicaciónNumerical simulation of propagation of the MHD waves in sunspotsWe present results of numerical 3D simulation of propagation of MHD waves in sunspots. We used two self consistent magnetohydrostatic background models of...
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PublicaciónNumerical Simulations of Conversion to Alfvén Waves in SunspotsWe study the conversion of fast magnetoacoustic waves to Alfvén waves by means of 2.5D numerical simulations in a sunspot-like magnetic configuration. A fast...
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NoticiaObservan el calentamiento producido por ondas magnéticas en el SolUn equipo internacional en el que participan investigadores del Instituto de Astrofísica de Canarias (IAC) y la Universidad de La Laguna (ULL), observa cómo las...
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PublicaciónObservation and interpretation of the asymmetric Stokes Q, U, and V line profiles in sunspotsWe present a first approach to systematic characterization and interpretation of observed asymmetries of Stokes profiles as a function of spatial position...
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PublicaciónObservation and Modeling of Anomalous CN Polarization Profiles Produced by the Molecular Paschen-Back Effect in SunspotsWe report novel spectropolarimetric observations of sunspots carried out with the Tenerife Infrared Polarimeter in a near-IR spectral region around 15410 Å...
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PublicaciónObservations of the birth and fine structure of sunspot penumbraeHigh resolution white-light pictures of sunspot penumbrae are presented. These include pictures showing details of their filamentary structure and some...