In recent decades, REALISTIC three-dimensional radiative-magnetohydrodynamic simulations have become the dominant theoretical tool for understanding the complex...
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PublicaciónThree-dimensional simulations of solar magneto-convection including effects of partial ionization
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PublicaciónThree-dimensional structure of a sunspot light bridge
Context. Active regions are the most prominent manifestations of solar magnetic fields; their generation and dissipation are fundamental problems in solar...
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PublicaciónTowards an understanding of the Of?p star HD 191612: optical spectroscopy
We present extensive optical spectroscopy of the early-type magnetic star HD 191612 (O6.5f?pe-O8fp). The Balmer and HeI lines show strongly variable emission...
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PublicaciónTruncated stellar discs in the near infrared. II. Statistical properties and interpretation
The results obtained in Paper I are used to study possible relationships between the truncation radius of stellar discs in the NIR and structural parameters of...
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PublicaciónTurbulent Erosion of Magnetic Flux Tubes
Results from a numerical and analytical investigation of the solution of a nonlinear axisymmetric diffusion equation for the magnetic field are presented for...
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PublicaciónTwenty-year monitoring of the surface magnetic fields of chemically peculiar stars
Magnetic chemically peculiar stars of the main sequence can present rotational periods as long as many decades. Here we report the results of an observational...
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PublicaciónTwo magnetic components in sunspot penumbrae
The magnetic and kinematic configuration of sunspot penumbrae is investigated by performing an inversion of the Stokes profiles of three infrared lines at 1565...
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PublicaciónTwo new young, wide, magnetic + non-magnetic double-degenerate binary systems
We report the discovery of two, new, rare, wide, double-degenerate binaries that each contain a magnetic and a non-magnetic star. The components of SDSS J092646...
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PublicaciónTwo-dimensional solar spectropolarimetry with the KIS/IAA Visible Imaging Polarimeter
Context. Spectropolarimetry at high spatial and spectral resolution is a basic tool to characterize the magnetic properties of the solar atmosphere. Aims: We...