High resolution (better than 1arcsec) magnetograms obtained at the Sacramento Peak Vacuum Tower Telescope were used to study the decay of a small active region...
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PublicationDetailed processes accompanying the decay of an active region.
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PublicationEmpirical granular/intergranular average model atmospheres.
Not Available
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PublicationFried's parameter derived from observations of granulation outside the disk centre
A new method has recently been developed to obtain the Fried's parameter from observations of granulation outside the disk center, based on the different...
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PublicationGranulation deformation near and in sunspot regions
High-resolution white-light pictures are analyzed to study the differences between the granular size near sunspot penumbrae and in light-bridges presenting...
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PublicationMagnetic aspects of the evolution of sunspots
The spectroscopic determinations of the solar magnetic fields are based on the Zeeman effect observed in relation to a number of absorption lines 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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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...
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PublicationMultidimensional energy transfer by radiation in the solar atmosphere
Both linear and nonlinear analysis are used to gain a better understanding of the effects of multi-dimensional transfer of energy by radiation in spatially...
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PublicationNew windows to the universe; Proceedings of the Eleventh European Regional Astronomy Meeting, Universidad de la Laguna, Spain, July 3-8, 1989. Part II
Recent observational and theoretical investigations of the sun and sunlike stars and of galactic structure and evolution are discussed in reviews and reports...