We 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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PublicaciónNumerical Simulations of Conversion to Alfvén Waves in Sunspots
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NoticiaObservan el calentamiento producido por ondas magnéticas en el Sol
Un 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 sunspots
We 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 Sunspots
We 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 penumbrae
High resolution white-light pictures of sunspot penumbrae are presented. These include pictures showing details of their filamentary structure and some...
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PublicaciónObserved differences between large and small sunspots
We confirm recent results about the differences in temperature and magnetic field strength between the umbra of large and small sunspots. Five Stokes I- and V...
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PublicaciónOn the age dependence of the asymmetry of penumbrae of sunspot
The age dependence of the recently described asymmetry of penumbrae of large stable sunspots was analyzed. Young sunspots showed shorter eastern penumbrae...
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PublicaciónOn the continuum intensity-magnetic field relation along the decay phase of sunspots
A continuum intensity-magnetic field distributions are presented for a decaying sunspot. It is shown that a very simple model accounts for the observed...
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PublicaciónOn the correlation of power in sunspot umbral oscillations with continuum brightness
We analyze time sequences of spectral lines formed at the photospheric level in order to study the correlation of umbral oscillations with continuum brightness...