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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PublicationObservation and interpretation of the asymmetric Stokes Q, U, and V line profiles in sunspots
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PublicationObservation 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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PublicationObservations 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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PublicationObserved 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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PublicationOn 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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PublicationOn 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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PublicationOn 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...
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PublicationOn the Dynamics of Bright Features in Sunspot Umbrae
Time series of white-light pictures of the sunspot NOAA 7522, obtained at the Swedish Vacuum Solar Telescope (La Palma), were analyzed to study the proper...
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PublicationOn the Energy Balance of Solar Active Regions
Ground-based observations of the sunspot irradiance deficit Ψ and the excess by facular regions in the period 1989 June 3-15 are analyzed using photometric...